1git(1) 2====== 3 4NAME 5---- 6git - the stupid content tracker 7 8 9SYNOPSIS 10-------- 11[verse] 12'git' [--version] [--help] [-C <path>] [-c <name>=<value>] 13 [--exec-path[=<path>]] [--html-path] [--man-path] [--info-path] 14 [-p|--paginate|--no-pager] [--no-replace-objects] [--bare] 15 [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>] 16 <command> [<args>] 17 18DESCRIPTION 19----------- 20Git is a fast, scalable, distributed revision control system with an 21unusually rich command set that provides both high-level operations 22and full access to internals. 23 24See linkgit:gittutorial[7] to get started, then see 25linkgit:giteveryday[7] for a useful minimum set of 26commands. The link:user-manual.html[Git User's Manual] has a more 27in-depth introduction. 28 29After you mastered the basic concepts, you can come back to this 30page to learn what commands Git offers. You can learn more about 31individual Git commands with "git help command". linkgit:gitcli[7] 32manual page gives you an overview of the command-line command syntax. 33 34A formatted and hyperlinked copy of the latest Git documentation 35can be viewed at `https://git.github.io/htmldocs/git.html`. 36 37ifdef::stalenotes[] 38[NOTE] 39============ 40 41You are reading the documentation for the latest (possibly 42unreleased) version of Git, that is available from the 'master' 43branch of the `git.git` repository. 44Documentation for older releases are available here: 45 46* link:v2.10.1/git.html[documentation for release 2.10.1] 47 48* release notes for 49 link:RelNotes/2.10.1.txt[2.10.1], 50 link:RelNotes/2.10.0.txt[2.10]. 51 52* link:v2.9.3/git.html[documentation for release 2.9.3] 53 54* release notes for 55 link:RelNotes/2.9.3.txt[2.9.3], 56 link:RelNotes/2.9.2.txt[2.9.2], 57 link:RelNotes/2.9.1.txt[2.9.1], 58 link:RelNotes/2.9.0.txt[2.9]. 59 60* link:v2.8.4/git.html[documentation for release 2.8.4] 61 62* release notes for 63 link:RelNotes/2.8.4.txt[2.8.4], 64 link:RelNotes/2.8.3.txt[2.8.3], 65 link:RelNotes/2.8.2.txt[2.8.2], 66 link:RelNotes/2.8.1.txt[2.8.1], 67 link:RelNotes/2.8.0.txt[2.8]. 68 69* link:v2.7.3/git.html[documentation for release 2.7.3] 70 71* release notes for 72 link:RelNotes/2.7.3.txt[2.7.3], 73 link:RelNotes/2.7.2.txt[2.7.2], 74 link:RelNotes/2.7.1.txt[2.7.1], 75 link:RelNotes/2.7.0.txt[2.7]. 76 77* link:v2.6.6/git.html[documentation for release 2.6.6] 78 79* release notes for 80 link:RelNotes/2.6.6.txt[2.6.6], 81 link:RelNotes/2.6.5.txt[2.6.5], 82 link:RelNotes/2.6.4.txt[2.6.4], 83 link:RelNotes/2.6.3.txt[2.6.3], 84 link:RelNotes/2.6.2.txt[2.6.2], 85 link:RelNotes/2.6.1.txt[2.6.1], 86 link:RelNotes/2.6.0.txt[2.6]. 87 88* link:v2.5.5/git.html[documentation for release 2.5.5] 89 90* release notes for 91 link:RelNotes/2.5.5.txt[2.5.5], 92 link:RelNotes/2.5.4.txt[2.5.4], 93 link:RelNotes/2.5.3.txt[2.5.3], 94 link:RelNotes/2.5.2.txt[2.5.2], 95 link:RelNotes/2.5.1.txt[2.5.1], 96 link:RelNotes/2.5.0.txt[2.5]. 97 98* link:v2.4.11/git.html[documentation for release 2.4.11] 99 100* release notes for 101 link:RelNotes/2.4.11.txt[2.4.11], 102 link:RelNotes/2.4.10.txt[2.4.10], 103 link:RelNotes/2.4.9.txt[2.4.9], 104 link:RelNotes/2.4.8.txt[2.4.8], 105 link:RelNotes/2.4.7.txt[2.4.7], 106 link:RelNotes/2.4.6.txt[2.4.6], 107 link:RelNotes/2.4.5.txt[2.4.5], 108 link:RelNotes/2.4.4.txt[2.4.4], 109 link:RelNotes/2.4.3.txt[2.4.3], 110 link:RelNotes/2.4.2.txt[2.4.2], 111 link:RelNotes/2.4.1.txt[2.4.1], 112 link:RelNotes/2.4.0.txt[2.4]. 113 114* link:v2.3.10/git.html[documentation for release 2.3.10] 115 116* release notes for 117 link:RelNotes/2.3.10.txt[2.3.10], 118 link:RelNotes/2.3.9.txt[2.3.9], 119 link:RelNotes/2.3.8.txt[2.3.8], 120 link:RelNotes/2.3.7.txt[2.3.7], 121 link:RelNotes/2.3.6.txt[2.3.6], 122 link:RelNotes/2.3.5.txt[2.3.5], 123 link:RelNotes/2.3.4.txt[2.3.4], 124 link:RelNotes/2.3.3.txt[2.3.3], 125 link:RelNotes/2.3.2.txt[2.3.2], 126 link:RelNotes/2.3.1.txt[2.3.1], 127 link:RelNotes/2.3.0.txt[2.3]. 128 129* link:v2.2.3/git.html[documentation for release 2.2.3] 130 131* release notes for 132 link:RelNotes/2.2.3.txt[2.2.3], 133 link:RelNotes/2.2.2.txt[2.2.2], 134 link:RelNotes/2.2.1.txt[2.2.1], 135 link:RelNotes/2.2.0.txt[2.2]. 136 137* link:v2.1.4/git.html[documentation for release 2.1.4] 138 139* release notes for 140 link:RelNotes/2.1.4.txt[2.1.4], 141 link:RelNotes/2.1.3.txt[2.1.3], 142 link:RelNotes/2.1.2.txt[2.1.2], 143 link:RelNotes/2.1.1.txt[2.1.1], 144 link:RelNotes/2.1.0.txt[2.1]. 145 146* link:v2.0.5/git.html[documentation for release 2.0.5] 147 148* release notes for 149 link:RelNotes/2.0.5.txt[2.0.5], 150 link:RelNotes/2.0.4.txt[2.0.4], 151 link:RelNotes/2.0.3.txt[2.0.3], 152 link:RelNotes/2.0.2.txt[2.0.2], 153 link:RelNotes/2.0.1.txt[2.0.1], 154 link:RelNotes/2.0.0.txt[2.0.0]. 155 156* link:v1.9.5/git.html[documentation for release 1.9.5] 157 158* release notes for 159 link:RelNotes/1.9.5.txt[1.9.5], 160 link:RelNotes/1.9.4.txt[1.9.4], 161 link:RelNotes/1.9.3.txt[1.9.3], 162 link:RelNotes/1.9.2.txt[1.9.2], 163 link:RelNotes/1.9.1.txt[1.9.1], 164 link:RelNotes/1.9.0.txt[1.9.0]. 165 166* link:v1.8.5.6/git.html[documentation for release 1.8.5.6] 167 168* release notes for 169 link:RelNotes/1.8.5.6.txt[1.8.5.6], 170 link:RelNotes/1.8.5.5.txt[1.8.5.5], 171 link:RelNotes/1.8.5.4.txt[1.8.5.4], 172 link:RelNotes/1.8.5.3.txt[1.8.5.3], 173 link:RelNotes/1.8.5.2.txt[1.8.5.2], 174 link:RelNotes/1.8.5.1.txt[1.8.5.1], 175 link:RelNotes/1.8.5.txt[1.8.5]. 176 177* link:v1.8.4.5/git.html[documentation for release 1.8.4.5] 178 179* release notes for 180 link:RelNotes/1.8.4.5.txt[1.8.4.5], 181 link:RelNotes/1.8.4.4.txt[1.8.4.4], 182 link:RelNotes/1.8.4.3.txt[1.8.4.3], 183 link:RelNotes/1.8.4.2.txt[1.8.4.2], 184 link:RelNotes/1.8.4.1.txt[1.8.4.1], 185 link:RelNotes/1.8.4.txt[1.8.4]. 186 187* link:v1.8.3.4/git.html[documentation for release 1.8.3.4] 188 189* release notes for 190 link:RelNotes/1.8.3.4.txt[1.8.3.4], 191 link:RelNotes/1.8.3.3.txt[1.8.3.3], 192 link:RelNotes/1.8.3.2.txt[1.8.3.2], 193 link:RelNotes/1.8.3.1.txt[1.8.3.1], 194 link:RelNotes/1.8.3.txt[1.8.3]. 195 196* link:v1.8.2.3/git.html[documentation for release 1.8.2.3] 197 198* release notes for 199 link:RelNotes/1.8.2.3.txt[1.8.2.3], 200 link:RelNotes/1.8.2.2.txt[1.8.2.2], 201 link:RelNotes/1.8.2.1.txt[1.8.2.1], 202 link:RelNotes/1.8.2.txt[1.8.2]. 203 204* link:v1.8.1.6/git.html[documentation for release 1.8.1.6] 205 206* release notes for 207 link:RelNotes/1.8.1.6.txt[1.8.1.6], 208 link:RelNotes/1.8.1.5.txt[1.8.1.5], 209 link:RelNotes/1.8.1.4.txt[1.8.1.4], 210 link:RelNotes/1.8.1.3.txt[1.8.1.3], 211 link:RelNotes/1.8.1.2.txt[1.8.1.2], 212 link:RelNotes/1.8.1.1.txt[1.8.1.1], 213 link:RelNotes/1.8.1.txt[1.8.1]. 214 215* link:v1.8.0.3/git.html[documentation for release 1.8.0.3] 216 217* release notes for 218 link:RelNotes/1.8.0.3.txt[1.8.0.3], 219 link:RelNotes/1.8.0.2.txt[1.8.0.2], 220 link:RelNotes/1.8.0.1.txt[1.8.0.1], 221 link:RelNotes/1.8.0.txt[1.8.0]. 222 223* link:v1.7.12.4/git.html[documentation for release 1.7.12.4] 224 225* release notes for 226 link:RelNotes/1.7.12.4.txt[1.7.12.4], 227 link:RelNotes/1.7.12.3.txt[1.7.12.3], 228 link:RelNotes/1.7.12.2.txt[1.7.12.2], 229 link:RelNotes/1.7.12.1.txt[1.7.12.1], 230 link:RelNotes/1.7.12.txt[1.7.12]. 231 232* link:v1.7.11.7/git.html[documentation for release 1.7.11.7] 233 234* release notes for 235 link:RelNotes/1.7.11.7.txt[1.7.11.7], 236 link:RelNotes/1.7.11.6.txt[1.7.11.6], 237 link:RelNotes/1.7.11.5.txt[1.7.11.5], 238 link:RelNotes/1.7.11.4.txt[1.7.11.4], 239 link:RelNotes/1.7.11.3.txt[1.7.11.3], 240 link:RelNotes/1.7.11.2.txt[1.7.11.2], 241 link:RelNotes/1.7.11.1.txt[1.7.11.1], 242 link:RelNotes/1.7.11.txt[1.7.11]. 243 244* link:v1.7.10.5/git.html[documentation for release 1.7.10.5] 245 246* release notes for 247 link:RelNotes/1.7.10.5.txt[1.7.10.5], 248 link:RelNotes/1.7.10.4.txt[1.7.10.4], 249 link:RelNotes/1.7.10.3.txt[1.7.10.3], 250 link:RelNotes/1.7.10.2.txt[1.7.10.2], 251 link:RelNotes/1.7.10.1.txt[1.7.10.1], 252 link:RelNotes/1.7.10.txt[1.7.10]. 253 254* link:v1.7.9.7/git.html[documentation for release 1.7.9.7] 255 256* release notes for 257 link:RelNotes/1.7.9.7.txt[1.7.9.7], 258 link:RelNotes/1.7.9.6.txt[1.7.9.6], 259 link:RelNotes/1.7.9.5.txt[1.7.9.5], 260 link:RelNotes/1.7.9.4.txt[1.7.9.4], 261 link:RelNotes/1.7.9.3.txt[1.7.9.3], 262 link:RelNotes/1.7.9.2.txt[1.7.9.2], 263 link:RelNotes/1.7.9.1.txt[1.7.9.1], 264 link:RelNotes/1.7.9.txt[1.7.9]. 265 266* link:v1.7.8.6/git.html[documentation for release 1.7.8.6] 267 268* release notes for 269 link:RelNotes/1.7.8.6.txt[1.7.8.6], 270 link:RelNotes/1.7.8.5.txt[1.7.8.5], 271 link:RelNotes/1.7.8.4.txt[1.7.8.4], 272 link:RelNotes/1.7.8.3.txt[1.7.8.3], 273 link:RelNotes/1.7.8.2.txt[1.7.8.2], 274 link:RelNotes/1.7.8.1.txt[1.7.8.1], 275 link:RelNotes/1.7.8.txt[1.7.8]. 276 277* link:v1.7.7.7/git.html[documentation for release 1.7.7.7] 278 279* release notes for 280 link:RelNotes/1.7.7.7.txt[1.7.7.7], 281 link:RelNotes/1.7.7.6.txt[1.7.7.6], 282 link:RelNotes/1.7.7.5.txt[1.7.7.5], 283 link:RelNotes/1.7.7.4.txt[1.7.7.4], 284 link:RelNotes/1.7.7.3.txt[1.7.7.3], 285 link:RelNotes/1.7.7.2.txt[1.7.7.2], 286 link:RelNotes/1.7.7.1.txt[1.7.7.1], 287 link:RelNotes/1.7.7.txt[1.7.7]. 288 289* link:v1.7.6.6/git.html[documentation for release 1.7.6.6] 290 291* release notes for 292 link:RelNotes/1.7.6.6.txt[1.7.6.6], 293 link:RelNotes/1.7.6.5.txt[1.7.6.5], 294 link:RelNotes/1.7.6.4.txt[1.7.6.4], 295 link:RelNotes/1.7.6.3.txt[1.7.6.3], 296 link:RelNotes/1.7.6.2.txt[1.7.6.2], 297 link:RelNotes/1.7.6.1.txt[1.7.6.1], 298 link:RelNotes/1.7.6.txt[1.7.6]. 299 300* link:v1.7.5.4/git.html[documentation for release 1.7.5.4] 301 302* release notes for 303 link:RelNotes/1.7.5.4.txt[1.7.5.4], 304 link:RelNotes/1.7.5.3.txt[1.7.5.3], 305 link:RelNotes/1.7.5.2.txt[1.7.5.2], 306 link:RelNotes/1.7.5.1.txt[1.7.5.1], 307 link:RelNotes/1.7.5.txt[1.7.5]. 308 309* link:v1.7.4.5/git.html[documentation for release 1.7.4.5] 310 311* release notes for 312 link:RelNotes/1.7.4.5.txt[1.7.4.5], 313 link:RelNotes/1.7.4.4.txt[1.7.4.4], 314 link:RelNotes/1.7.4.3.txt[1.7.4.3], 315 link:RelNotes/1.7.4.2.txt[1.7.4.2], 316 link:RelNotes/1.7.4.1.txt[1.7.4.1], 317 link:RelNotes/1.7.4.txt[1.7.4]. 318 319* link:v1.7.3.5/git.html[documentation for release 1.7.3.5] 320 321* release notes for 322 link:RelNotes/1.7.3.5.txt[1.7.3.5], 323 link:RelNotes/1.7.3.4.txt[1.7.3.4], 324 link:RelNotes/1.7.3.3.txt[1.7.3.3], 325 link:RelNotes/1.7.3.2.txt[1.7.3.2], 326 link:RelNotes/1.7.3.1.txt[1.7.3.1], 327 link:RelNotes/1.7.3.txt[1.7.3]. 328 329* link:v1.7.2.5/git.html[documentation for release 1.7.2.5] 330 331* release notes for 332 link:RelNotes/1.7.2.5.txt[1.7.2.5], 333 link:RelNotes/1.7.2.4.txt[1.7.2.4], 334 link:RelNotes/1.7.2.3.txt[1.7.2.3], 335 link:RelNotes/1.7.2.2.txt[1.7.2.2], 336 link:RelNotes/1.7.2.1.txt[1.7.2.1], 337 link:RelNotes/1.7.2.txt[1.7.2]. 338 339* link:v1.7.1.4/git.html[documentation for release 1.7.1.4] 340 341* release notes for 342 link:RelNotes/1.7.1.4.txt[1.7.1.4], 343 link:RelNotes/1.7.1.3.txt[1.7.1.3], 344 link:RelNotes/1.7.1.2.txt[1.7.1.2], 345 link:RelNotes/1.7.1.1.txt[1.7.1.1], 346 link:RelNotes/1.7.1.txt[1.7.1]. 347 348* link:v1.7.0.9/git.html[documentation for release 1.7.0.9] 349 350* release notes for 351 link:RelNotes/1.7.0.9.txt[1.7.0.9], 352 link:RelNotes/1.7.0.8.txt[1.7.0.8], 353 link:RelNotes/1.7.0.7.txt[1.7.0.7], 354 link:RelNotes/1.7.0.6.txt[1.7.0.6], 355 link:RelNotes/1.7.0.5.txt[1.7.0.5], 356 link:RelNotes/1.7.0.4.txt[1.7.0.4], 357 link:RelNotes/1.7.0.3.txt[1.7.0.3], 358 link:RelNotes/1.7.0.2.txt[1.7.0.2], 359 link:RelNotes/1.7.0.1.txt[1.7.0.1], 360 link:RelNotes/1.7.0.txt[1.7.0]. 361 362* link:v1.6.6.3/git.html[documentation for release 1.6.6.3] 363 364* release notes for 365 link:RelNotes/1.6.6.3.txt[1.6.6.3], 366 link:RelNotes/1.6.6.2.txt[1.6.6.2], 367 link:RelNotes/1.6.6.1.txt[1.6.6.1], 368 link:RelNotes/1.6.6.txt[1.6.6]. 369 370* link:v1.6.5.9/git.html[documentation for release 1.6.5.9] 371 372* release notes for 373 link:RelNotes/1.6.5.9.txt[1.6.5.9], 374 link:RelNotes/1.6.5.8.txt[1.6.5.8], 375 link:RelNotes/1.6.5.7.txt[1.6.5.7], 376 link:RelNotes/1.6.5.6.txt[1.6.5.6], 377 link:RelNotes/1.6.5.5.txt[1.6.5.5], 378 link:RelNotes/1.6.5.4.txt[1.6.5.4], 379 link:RelNotes/1.6.5.3.txt[1.6.5.3], 380 link:RelNotes/1.6.5.2.txt[1.6.5.2], 381 link:RelNotes/1.6.5.1.txt[1.6.5.1], 382 link:RelNotes/1.6.5.txt[1.6.5]. 383 384* link:v1.6.4.5/git.html[documentation for release 1.6.4.5] 385 386* release notes for 387 link:RelNotes/1.6.4.5.txt[1.6.4.5], 388 link:RelNotes/1.6.4.4.txt[1.6.4.4], 389 link:RelNotes/1.6.4.3.txt[1.6.4.3], 390 link:RelNotes/1.6.4.2.txt[1.6.4.2], 391 link:RelNotes/1.6.4.1.txt[1.6.4.1], 392 link:RelNotes/1.6.4.txt[1.6.4]. 393 394* link:v1.6.3.4/git.html[documentation for release 1.6.3.4] 395 396* release notes for 397 link:RelNotes/1.6.3.4.txt[1.6.3.4], 398 link:RelNotes/1.6.3.3.txt[1.6.3.3], 399 link:RelNotes/1.6.3.2.txt[1.6.3.2], 400 link:RelNotes/1.6.3.1.txt[1.6.3.1], 401 link:RelNotes/1.6.3.txt[1.6.3]. 402 403* release notes for 404 link:RelNotes/1.6.2.5.txt[1.6.2.5], 405 link:RelNotes/1.6.2.4.txt[1.6.2.4], 406 link:RelNotes/1.6.2.3.txt[1.6.2.3], 407 link:RelNotes/1.6.2.2.txt[1.6.2.2], 408 link:RelNotes/1.6.2.1.txt[1.6.2.1], 409 link:RelNotes/1.6.2.txt[1.6.2]. 410 411* link:v1.6.1.3/git.html[documentation for release 1.6.1.3] 412 413* release notes for 414 link:RelNotes/1.6.1.3.txt[1.6.1.3], 415 link:RelNotes/1.6.1.2.txt[1.6.1.2], 416 link:RelNotes/1.6.1.1.txt[1.6.1.1], 417 link:RelNotes/1.6.1.txt[1.6.1]. 418 419* link:v1.6.0.6/git.html[documentation for release 1.6.0.6] 420 421* release notes for 422 link:RelNotes/1.6.0.6.txt[1.6.0.6], 423 link:RelNotes/1.6.0.5.txt[1.6.0.5], 424 link:RelNotes/1.6.0.4.txt[1.6.0.4], 425 link:RelNotes/1.6.0.3.txt[1.6.0.3], 426 link:RelNotes/1.6.0.2.txt[1.6.0.2], 427 link:RelNotes/1.6.0.1.txt[1.6.0.1], 428 link:RelNotes/1.6.0.txt[1.6.0]. 429 430* link:v1.5.6.6/git.html[documentation for release 1.5.6.6] 431 432* release notes for 433 link:RelNotes/1.5.6.6.txt[1.5.6.6], 434 link:RelNotes/1.5.6.5.txt[1.5.6.5], 435 link:RelNotes/1.5.6.4.txt[1.5.6.4], 436 link:RelNotes/1.5.6.3.txt[1.5.6.3], 437 link:RelNotes/1.5.6.2.txt[1.5.6.2], 438 link:RelNotes/1.5.6.1.txt[1.5.6.1], 439 link:RelNotes/1.5.6.txt[1.5.6]. 440 441* link:v1.5.5.6/git.html[documentation for release 1.5.5.6] 442 443* release notes for 444 link:RelNotes/1.5.5.6.txt[1.5.5.6], 445 link:RelNotes/1.5.5.5.txt[1.5.5.5], 446 link:RelNotes/1.5.5.4.txt[1.5.5.4], 447 link:RelNotes/1.5.5.3.txt[1.5.5.3], 448 link:RelNotes/1.5.5.2.txt[1.5.5.2], 449 link:RelNotes/1.5.5.1.txt[1.5.5.1], 450 link:RelNotes/1.5.5.txt[1.5.5]. 451 452* link:v1.5.4.7/git.html[documentation for release 1.5.4.7] 453 454* release notes for 455 link:RelNotes/1.5.4.7.txt[1.5.4.7], 456 link:RelNotes/1.5.4.6.txt[1.5.4.6], 457 link:RelNotes/1.5.4.5.txt[1.5.4.5], 458 link:RelNotes/1.5.4.4.txt[1.5.4.4], 459 link:RelNotes/1.5.4.3.txt[1.5.4.3], 460 link:RelNotes/1.5.4.2.txt[1.5.4.2], 461 link:RelNotes/1.5.4.1.txt[1.5.4.1], 462 link:RelNotes/1.5.4.txt[1.5.4]. 463 464* link:v1.5.3.8/git.html[documentation for release 1.5.3.8] 465 466* release notes for 467 link:RelNotes/1.5.3.8.txt[1.5.3.8], 468 link:RelNotes/1.5.3.7.txt[1.5.3.7], 469 link:RelNotes/1.5.3.6.txt[1.5.3.6], 470 link:RelNotes/1.5.3.5.txt[1.5.3.5], 471 link:RelNotes/1.5.3.4.txt[1.5.3.4], 472 link:RelNotes/1.5.3.3.txt[1.5.3.3], 473 link:RelNotes/1.5.3.2.txt[1.5.3.2], 474 link:RelNotes/1.5.3.1.txt[1.5.3.1], 475 link:RelNotes/1.5.3.txt[1.5.3]. 476 477* link:v1.5.2.5/git.html[documentation for release 1.5.2.5] 478 479* release notes for 480 link:RelNotes/1.5.2.5.txt[1.5.2.5], 481 link:RelNotes/1.5.2.4.txt[1.5.2.4], 482 link:RelNotes/1.5.2.3.txt[1.5.2.3], 483 link:RelNotes/1.5.2.2.txt[1.5.2.2], 484 link:RelNotes/1.5.2.1.txt[1.5.2.1], 485 link:RelNotes/1.5.2.txt[1.5.2]. 486 487* link:v1.5.1.6/git.html[documentation for release 1.5.1.6] 488 489* release notes for 490 link:RelNotes/1.5.1.6.txt[1.5.1.6], 491 link:RelNotes/1.5.1.5.txt[1.5.1.5], 492 link:RelNotes/1.5.1.4.txt[1.5.1.4], 493 link:RelNotes/1.5.1.3.txt[1.5.1.3], 494 link:RelNotes/1.5.1.2.txt[1.5.1.2], 495 link:RelNotes/1.5.1.1.txt[1.5.1.1], 496 link:RelNotes/1.5.1.txt[1.5.1]. 497 498* link:v1.5.0.7/git.html[documentation for release 1.5.0.7] 499 500* release notes for 501 link:RelNotes/1.5.0.7.txt[1.5.0.7], 502 link:RelNotes/1.5.0.6.txt[1.5.0.6], 503 link:RelNotes/1.5.0.5.txt[1.5.0.5], 504 link:RelNotes/1.5.0.3.txt[1.5.0.3], 505 link:RelNotes/1.5.0.2.txt[1.5.0.2], 506 link:RelNotes/1.5.0.1.txt[1.5.0.1], 507 link:RelNotes/1.5.0.txt[1.5.0]. 508 509* documentation for release link:v1.4.4.4/git.html[1.4.4.4], 510 link:v1.3.3/git.html[1.3.3], 511 link:v1.2.6/git.html[1.2.6], 512 link:v1.0.13/git.html[1.0.13]. 513 514============ 515 516endif::stalenotes[] 517 518OPTIONS 519------- 520--version:: 521 Prints the Git suite version that the 'git' program came from. 522 523--help:: 524 Prints the synopsis and a list of the most commonly used 525 commands. If the option `--all` or `-a` is given then all 526 available commands are printed. If a Git command is named this 527 option will bring up the manual page for that command. 528+ 529Other options are available to control how the manual page is 530displayed. See linkgit:git-help[1] for more information, 531because `git --help ...` is converted internally into `git 532help ...`. 533 534-C <path>:: 535 Run as if git was started in '<path>' instead of the current working 536 directory. When multiple `-C` options are given, each subsequent 537 non-absolute `-C <path>` is interpreted relative to the preceding `-C 538 <path>`. 539+ 540This option affects options that expect path name like `--git-dir` and 541`--work-tree` in that their interpretations of the path names would be 542made relative to the working directory caused by the `-C` option. For 543example the following invocations are equivalent: 544 545 git --git-dir=a.git --work-tree=b -C c status 546 git --git-dir=c/a.git --work-tree=c/b status 547 548-c <name>=<value>:: 549 Pass a configuration parameter to the command. The value 550 given will override values from configuration files. 551 The <name> is expected in the same format as listed by 552 'git config' (subkeys separated by dots). 553+ 554Note that omitting the `=` in `git -c foo.bar ...` is allowed and sets 555`foo.bar` to the boolean true value (just like `[foo]bar` would in a 556config file). Including the equals but with an empty value (like `git -c 557foo.bar= ...`) sets `foo.bar` to the empty string. 558 559--exec-path[=<path>]:: 560 Path to wherever your core Git programs are installed. 561 This can also be controlled by setting the GIT_EXEC_PATH 562 environment variable. If no path is given, 'git' will print 563 the current setting and then exit. 564 565--html-path:: 566 Print the path, without trailing slash, where Git's HTML 567 documentation is installed and exit. 568 569--man-path:: 570 Print the manpath (see `man(1)`) for the man pages for 571 this version of Git and exit. 572 573--info-path:: 574 Print the path where the Info files documenting this 575 version of Git are installed and exit. 576 577-p:: 578--paginate:: 579 Pipe all output into 'less' (or if set, $PAGER) if standard 580 output is a terminal. This overrides the `pager.<cmd>` 581 configuration options (see the "Configuration Mechanism" section 582 below). 583 584--no-pager:: 585 Do not pipe Git output into a pager. 586 587--git-dir=<path>:: 588 Set the path to the repository. This can also be controlled by 589 setting the `GIT_DIR` environment variable. It can be an absolute 590 path or relative path to current working directory. 591 592--work-tree=<path>:: 593 Set the path to the working tree. It can be an absolute path 594 or a path relative to the current working directory. 595 This can also be controlled by setting the GIT_WORK_TREE 596 environment variable and the core.worktree configuration 597 variable (see core.worktree in linkgit:git-config[1] for a 598 more detailed discussion). 599 600--namespace=<path>:: 601 Set the Git namespace. See linkgit:gitnamespaces[7] for more 602 details. Equivalent to setting the `GIT_NAMESPACE` environment 603 variable. 604 605--bare:: 606 Treat the repository as a bare repository. If GIT_DIR 607 environment is not set, it is set to the current working 608 directory. 609 610--no-replace-objects:: 611 Do not use replacement refs to replace Git objects. See 612 linkgit:git-replace[1] for more information. 613 614--literal-pathspecs:: 615 Treat pathspecs literally (i.e. no globbing, no pathspec magic). 616 This is equivalent to setting the `GIT_LITERAL_PATHSPECS` environment 617 variable to `1`. 618 619--glob-pathspecs:: 620 Add "glob" magic to all pathspec. This is equivalent to setting 621 the `GIT_GLOB_PATHSPECS` environment variable to `1`. Disabling 622 globbing on individual pathspecs can be done using pathspec 623 magic ":(literal)" 624 625--noglob-pathspecs:: 626 Add "literal" magic to all pathspec. This is equivalent to setting 627 the `GIT_NOGLOB_PATHSPECS` environment variable to `1`. Enabling 628 globbing on individual pathspecs can be done using pathspec 629 magic ":(glob)" 630 631--icase-pathspecs:: 632 Add "icase" magic to all pathspec. This is equivalent to setting 633 the `GIT_ICASE_PATHSPECS` environment variable to `1`. 634 635GIT COMMANDS 636------------ 637 638We divide Git into high level ("porcelain") commands and low level 639("plumbing") commands. 640 641High-level commands (porcelain) 642------------------------------- 643 644We separate the porcelain commands into the main commands and some 645ancillary user utilities. 646 647Main porcelain commands 648~~~~~~~~~~~~~~~~~~~~~~~ 649 650include::cmds-mainporcelain.txt[] 651 652Ancillary Commands 653~~~~~~~~~~~~~~~~~~ 654Manipulators: 655 656include::cmds-ancillarymanipulators.txt[] 657 658Interrogators: 659 660include::cmds-ancillaryinterrogators.txt[] 661 662 663Interacting with Others 664~~~~~~~~~~~~~~~~~~~~~~~ 665 666These commands are to interact with foreign SCM and with other 667people via patch over e-mail. 668 669include::cmds-foreignscminterface.txt[] 670 671 672Low-level commands (plumbing) 673----------------------------- 674 675Although Git includes its 676own porcelain layer, its low-level commands are sufficient to support 677development of alternative porcelains. Developers of such porcelains 678might start by reading about linkgit:git-update-index[1] and 679linkgit:git-read-tree[1]. 680 681The interface (input, output, set of options and the semantics) 682to these low-level commands are meant to be a lot more stable 683than Porcelain level commands, because these commands are 684primarily for scripted use. The interface to Porcelain commands 685on the other hand are subject to change in order to improve the 686end user experience. 687 688The following description divides 689the low-level commands into commands that manipulate objects (in 690the repository, index, and working tree), commands that interrogate and 691compare objects, and commands that move objects and references between 692repositories. 693 694 695Manipulation commands 696~~~~~~~~~~~~~~~~~~~~~ 697 698include::cmds-plumbingmanipulators.txt[] 699 700 701Interrogation commands 702~~~~~~~~~~~~~~~~~~~~~~ 703 704include::cmds-plumbinginterrogators.txt[] 705 706In general, the interrogate commands do not touch the files in 707the working tree. 708 709 710Synching repositories 711~~~~~~~~~~~~~~~~~~~~~ 712 713include::cmds-synchingrepositories.txt[] 714 715The following are helper commands used by the above; end users 716typically do not use them directly. 717 718include::cmds-synchelpers.txt[] 719 720 721Internal helper commands 722~~~~~~~~~~~~~~~~~~~~~~~~ 723 724These are internal helper commands used by other commands; end 725users typically do not use them directly. 726 727include::cmds-purehelpers.txt[] 728 729 730Configuration Mechanism 731----------------------- 732 733Git uses a simple text format to store customizations that are per 734repository and are per user. Such a configuration file may look 735like this: 736 737------------ 738# 739# A '#' or ';' character indicates a comment. 740# 741 742; core variables 743[core] 744 ; Don't trust file modes 745 filemode = false 746 747; user identity 748[user] 749 name = "Junio C Hamano" 750 email = "gitster@pobox.com" 751 752------------ 753 754Various commands read from the configuration file and adjust 755their operation accordingly. See linkgit:git-config[1] for a 756list and more details about the configuration mechanism. 757 758 759Identifier Terminology 760---------------------- 761<object>:: 762 Indicates the object name for any type of object. 763 764<blob>:: 765 Indicates a blob object name. 766 767<tree>:: 768 Indicates a tree object name. 769 770<commit>:: 771 Indicates a commit object name. 772 773<tree-ish>:: 774 Indicates a tree, commit or tag object name. A 775 command that takes a <tree-ish> argument ultimately wants to 776 operate on a <tree> object but automatically dereferences 777 <commit> and <tag> objects that point at a <tree>. 778 779<commit-ish>:: 780 Indicates a commit or tag object name. A 781 command that takes a <commit-ish> argument ultimately wants to 782 operate on a <commit> object but automatically dereferences 783 <tag> objects that point at a <commit>. 784 785<type>:: 786 Indicates that an object type is required. 787 Currently one of: `blob`, `tree`, `commit`, or `tag`. 788 789<file>:: 790 Indicates a filename - almost always relative to the 791 root of the tree structure `GIT_INDEX_FILE` describes. 792 793Symbolic Identifiers 794-------------------- 795Any Git command accepting any <object> can also use the following 796symbolic notation: 797 798HEAD:: 799 indicates the head of the current branch. 800 801<tag>:: 802 a valid tag 'name' 803 (i.e. a `refs/tags/<tag>` reference). 804 805<head>:: 806 a valid head 'name' 807 (i.e. a `refs/heads/<head>` reference). 808 809For a more complete list of ways to spell object names, see 810"SPECIFYING REVISIONS" section in linkgit:gitrevisions[7]. 811 812 813File/Directory Structure 814------------------------ 815 816Please see the linkgit:gitrepository-layout[5] document. 817 818Read linkgit:githooks[5] for more details about each hook. 819 820Higher level SCMs may provide and manage additional information in the 821`$GIT_DIR`. 822 823 824Terminology 825----------- 826Please see linkgit:gitglossary[7]. 827 828 829Environment Variables 830--------------------- 831Various Git commands use the following environment variables: 832 833The Git Repository 834~~~~~~~~~~~~~~~~~~ 835These environment variables apply to 'all' core Git commands. Nb: it 836is worth noting that they may be used/overridden by SCMS sitting above 837Git so take care if using a foreign front-end. 838 839`GIT_INDEX_FILE`:: 840 This environment allows the specification of an alternate 841 index file. If not specified, the default of `$GIT_DIR/index` 842 is used. 843 844`GIT_INDEX_VERSION`:: 845 This environment variable allows the specification of an index 846 version for new repositories. It won't affect existing index 847 files. By default index file version 2 or 3 is used. See 848 linkgit:git-update-index[1] for more information. 849 850`GIT_OBJECT_DIRECTORY`:: 851 If the object storage directory is specified via this 852 environment variable then the sha1 directories are created 853 underneath - otherwise the default `$GIT_DIR/objects` 854 directory is used. 855 856`GIT_ALTERNATE_OBJECT_DIRECTORIES`:: 857 Due to the immutable nature of Git objects, old objects can be 858 archived into shared, read-only directories. This variable 859 specifies a ":" separated (on Windows ";" separated) list 860 of Git object directories which can be used to search for Git 861 objects. New objects will not be written to these directories. 862 863`GIT_DIR`:: 864 If the `GIT_DIR` environment variable is set then it 865 specifies a path to use instead of the default `.git` 866 for the base of the repository. 867 The `--git-dir` command-line option also sets this value. 868 869`GIT_WORK_TREE`:: 870 Set the path to the root of the working tree. 871 This can also be controlled by the `--work-tree` command-line 872 option and the core.worktree configuration variable. 873 874`GIT_NAMESPACE`:: 875 Set the Git namespace; see linkgit:gitnamespaces[7] for details. 876 The `--namespace` command-line option also sets this value. 877 878`GIT_CEILING_DIRECTORIES`:: 879 This should be a colon-separated list of absolute paths. If 880 set, it is a list of directories that Git should not chdir up 881 into while looking for a repository directory (useful for 882 excluding slow-loading network directories). It will not 883 exclude the current working directory or a GIT_DIR set on the 884 command line or in the environment. Normally, Git has to read 885 the entries in this list and resolve any symlink that 886 might be present in order to compare them with the current 887 directory. However, if even this access is slow, you 888 can add an empty entry to the list to tell Git that the 889 subsequent entries are not symlinks and needn't be resolved; 890 e.g., 891 `GIT_CEILING_DIRECTORIES=/maybe/symlink::/very/slow/non/symlink`. 892 893`GIT_DISCOVERY_ACROSS_FILESYSTEM`:: 894 When run in a directory that does not have ".git" repository 895 directory, Git tries to find such a directory in the parent 896 directories to find the top of the working tree, but by default it 897 does not cross filesystem boundaries. This environment variable 898 can be set to true to tell Git not to stop at filesystem 899 boundaries. Like `GIT_CEILING_DIRECTORIES`, this will not affect 900 an explicit repository directory set via `GIT_DIR` or on the 901 command line. 902 903`GIT_COMMON_DIR`:: 904 If this variable is set to a path, non-worktree files that are 905 normally in $GIT_DIR will be taken from this path 906 instead. Worktree-specific files such as HEAD or index are 907 taken from $GIT_DIR. See linkgit:gitrepository-layout[5] and 908 linkgit:git-worktree[1] for 909 details. This variable has lower precedence than other path 910 variables such as GIT_INDEX_FILE, GIT_OBJECT_DIRECTORY... 911 912Git Commits 913~~~~~~~~~~~ 914`GIT_AUTHOR_NAME`:: 915`GIT_AUTHOR_EMAIL`:: 916`GIT_AUTHOR_DATE`:: 917`GIT_COMMITTER_NAME`:: 918`GIT_COMMITTER_EMAIL`:: 919`GIT_COMMITTER_DATE`:: 920'EMAIL':: 921 see linkgit:git-commit-tree[1] 922 923Git Diffs 924~~~~~~~~~ 925`GIT_DIFF_OPTS`:: 926 Only valid setting is "--unified=??" or "-u??" to set the 927 number of context lines shown when a unified diff is created. 928 This takes precedence over any "-U" or "--unified" option 929 value passed on the Git diff command line. 930 931`GIT_EXTERNAL_DIFF`:: 932 When the environment variable `GIT_EXTERNAL_DIFF` is set, the 933 program named by it is called, instead of the diff invocation 934 described above. For a path that is added, removed, or modified, 935 `GIT_EXTERNAL_DIFF` is called with 7 parameters: 936 937 path old-file old-hex old-mode new-file new-hex new-mode 938+ 939where: 940 941 <old|new>-file:: are files GIT_EXTERNAL_DIFF can use to read the 942 contents of <old|new>, 943 <old|new>-hex:: are the 40-hexdigit SHA-1 hashes, 944 <old|new>-mode:: are the octal representation of the file modes. 945+ 946The file parameters can point at the user's working file 947(e.g. `new-file` in "git-diff-files"), `/dev/null` (e.g. `old-file` 948when a new file is added), or a temporary file (e.g. `old-file` in the 949index). `GIT_EXTERNAL_DIFF` should not worry about unlinking the 950temporary file --- it is removed when `GIT_EXTERNAL_DIFF` exits. 951+ 952For a path that is unmerged, `GIT_EXTERNAL_DIFF` is called with 1 953parameter, <path>. 954+ 955For each path `GIT_EXTERNAL_DIFF` is called, two environment variables, 956`GIT_DIFF_PATH_COUNTER` and `GIT_DIFF_PATH_TOTAL` are set. 957 958`GIT_DIFF_PATH_COUNTER`:: 959 A 1-based counter incremented by one for every path. 960 961`GIT_DIFF_PATH_TOTAL`:: 962 The total number of paths. 963 964other 965~~~~~ 966`GIT_MERGE_VERBOSITY`:: 967 A number controlling the amount of output shown by 968 the recursive merge strategy. Overrides merge.verbosity. 969 See linkgit:git-merge[1] 970 971`GIT_PAGER`:: 972 This environment variable overrides `$PAGER`. If it is set 973 to an empty string or to the value "cat", Git will not launch 974 a pager. See also the `core.pager` option in 975 linkgit:git-config[1]. 976 977`GIT_EDITOR`:: 978 This environment variable overrides `$EDITOR` and `$VISUAL`. 979 It is used by several Git commands when, on interactive mode, 980 an editor is to be launched. See also linkgit:git-var[1] 981 and the `core.editor` option in linkgit:git-config[1]. 982 983`GIT_SSH`:: 984`GIT_SSH_COMMAND`:: 985 If either of these environment variables is set then 'git fetch' 986 and 'git push' will use the specified command instead of 'ssh' 987 when they need to connect to a remote system. 988 The command will be given exactly two or four arguments: the 989 'username@host' (or just 'host') from the URL and the shell 990 command to execute on that remote system, optionally preceded by 991 `-p` (literally) and the 'port' from the URL when it specifies 992 something other than the default SSH port. 993+ 994`$GIT_SSH_COMMAND` takes precedence over `$GIT_SSH`, and is interpreted 995by the shell, which allows additional arguments to be included. 996`$GIT_SSH` on the other hand must be just the path to a program 997(which can be a wrapper shell script, if additional arguments are 998needed). 999+1000Usually it is easier to configure any desired options through your1001personal `.ssh/config` file. Please consult your ssh documentation1002for further details.10031004`GIT_ASKPASS`::1005 If this environment variable is set, then Git commands which need to1006 acquire passwords or passphrases (e.g. for HTTP or IMAP authentication)1007 will call this program with a suitable prompt as command-line argument1008 and read the password from its STDOUT. See also the `core.askPass`1009 option in linkgit:git-config[1].10101011`GIT_TERMINAL_PROMPT`::1012 If this environment variable is set to `0`, git will not prompt1013 on the terminal (e.g., when asking for HTTP authentication).10141015`GIT_CONFIG_NOSYSTEM`::1016 Whether to skip reading settings from the system-wide1017 `$(prefix)/etc/gitconfig` file. This environment variable can1018 be used along with `$HOME` and `$XDG_CONFIG_HOME` to create a1019 predictable environment for a picky script, or you can set it1020 temporarily to avoid using a buggy `/etc/gitconfig` file while1021 waiting for someone with sufficient permissions to fix it.10221023`GIT_FLUSH`::1024 If this environment variable is set to "1", then commands such1025 as 'git blame' (in incremental mode), 'git rev-list', 'git log',1026 'git check-attr' and 'git check-ignore' will1027 force a flush of the output stream after each record have been1028 flushed. If this1029 variable is set to "0", the output of these commands will be done1030 using completely buffered I/O. If this environment variable is1031 not set, Git will choose buffered or record-oriented flushing1032 based on whether stdout appears to be redirected to a file or not.10331034`GIT_TRACE`::1035 Enables general trace messages, e.g. alias expansion, built-in1036 command execution and external command execution.1037+1038If this variable is set to "1", "2" or "true" (comparison1039is case insensitive), trace messages will be printed to1040stderr.1041+1042If the variable is set to an integer value greater than 21043and lower than 10 (strictly) then Git will interpret this1044value as an open file descriptor and will try to write the1045trace messages into this file descriptor.1046+1047Alternatively, if the variable is set to an absolute path1048(starting with a '/' character), Git will interpret this1049as a file path and will try to write the trace messages1050into it.1051+1052Unsetting the variable, or setting it to empty, "0" or1053"false" (case insensitive) disables trace messages.10541055`GIT_TRACE_PACK_ACCESS`::1056 Enables trace messages for all accesses to any packs. For each1057 access, the pack file name and an offset in the pack is1058 recorded. This may be helpful for troubleshooting some1059 pack-related performance problems.1060 See `GIT_TRACE` for available trace output options.10611062`GIT_TRACE_PACKET`::1063 Enables trace messages for all packets coming in or out of a1064 given program. This can help with debugging object negotiation1065 or other protocol issues. Tracing is turned off at a packet1066 starting with "PACK" (but see `GIT_TRACE_PACKFILE` below).1067 See `GIT_TRACE` for available trace output options.10681069`GIT_TRACE_PACKFILE`::1070 Enables tracing of packfiles sent or received by a1071 given program. Unlike other trace output, this trace is1072 verbatim: no headers, and no quoting of binary data. You almost1073 certainly want to direct into a file (e.g.,1074 `GIT_TRACE_PACKFILE=/tmp/my.pack`) rather than displaying it on1075 the terminal or mixing it with other trace output.1076+1077Note that this is currently only implemented for the client side1078of clones and fetches.10791080`GIT_TRACE_PERFORMANCE`::1081 Enables performance related trace messages, e.g. total execution1082 time of each Git command.1083 See `GIT_TRACE` for available trace output options.10841085`GIT_TRACE_SETUP`::1086 Enables trace messages printing the .git, working tree and current1087 working directory after Git has completed its setup phase.1088 See `GIT_TRACE` for available trace output options.10891090`GIT_TRACE_SHALLOW`::1091 Enables trace messages that can help debugging fetching /1092 cloning of shallow repositories.1093 See `GIT_TRACE` for available trace output options.10941095`GIT_TRACE_CURL`::1096 Enables a curl full trace dump of all incoming and outgoing data,1097 including descriptive information, of the git transport protocol.1098 This is similar to doing curl `--trace-ascii` on the command line.1099 This option overrides setting the `GIT_CURL_VERBOSE` environment1100 variable.1101 See `GIT_TRACE` for available trace output options.11021103`GIT_LITERAL_PATHSPECS`::1104 Setting this variable to `1` will cause Git to treat all1105 pathspecs literally, rather than as glob patterns. For example,1106 running `GIT_LITERAL_PATHSPECS=1 git log -- '*.c'` will search1107 for commits that touch the path `*.c`, not any paths that the1108 glob `*.c` matches. You might want this if you are feeding1109 literal paths to Git (e.g., paths previously given to you by1110 `git ls-tree`, `--raw` diff output, etc).11111112`GIT_GLOB_PATHSPECS`::1113 Setting this variable to `1` will cause Git to treat all1114 pathspecs as glob patterns (aka "glob" magic).11151116`GIT_NOGLOB_PATHSPECS`::1117 Setting this variable to `1` will cause Git to treat all1118 pathspecs as literal (aka "literal" magic).11191120`GIT_ICASE_PATHSPECS`::1121 Setting this variable to `1` will cause Git to treat all1122 pathspecs as case-insensitive.11231124`GIT_REFLOG_ACTION`::1125 When a ref is updated, reflog entries are created to keep1126 track of the reason why the ref was updated (which is1127 typically the name of the high-level command that updated1128 the ref), in addition to the old and new values of the ref.1129 A scripted Porcelain command can use set_reflog_action1130 helper function in `git-sh-setup` to set its name to this1131 variable when it is invoked as the top level command by the1132 end user, to be recorded in the body of the reflog.11331134`GIT_REF_PARANOIA`::1135 If set to `1`, include broken or badly named refs when iterating1136 over lists of refs. In a normal, non-corrupted repository, this1137 does nothing. However, enabling it may help git to detect and1138 abort some operations in the presence of broken refs. Git sets1139 this variable automatically when performing destructive1140 operations like linkgit:git-prune[1]. You should not need to set1141 it yourself unless you want to be paranoid about making sure1142 an operation has touched every ref (e.g., because you are1143 cloning a repository to make a backup).11441145`GIT_ALLOW_PROTOCOL`::1146 If set, provide a colon-separated list of protocols which are1147 allowed to be used with fetch/push/clone. This is useful to1148 restrict recursive submodule initialization from an untrusted1149 repository. Any protocol not mentioned will be disallowed (i.e.,1150 this is a whitelist, not a blacklist). If the variable is not1151 set at all, all protocols are enabled. The protocol names1152 currently used by git are:11531154 - `file`: any local file-based path (including `file://` URLs,1155 or local paths)11561157 - `git`: the anonymous git protocol over a direct TCP1158 connection (or proxy, if configured)11591160 - `ssh`: git over ssh (including `host:path` syntax,1161 `ssh://`, etc).11621163 - `http`: git over http, both "smart http" and "dumb http".1164 Note that this does _not_ include `https`; if you want both,1165 you should specify both as `http:https`.11661167 - any external helpers are named by their protocol (e.g., use1168 `hg` to allow the `git-remote-hg` helper)116911701171Discussion[[Discussion]]1172------------------------11731174More detail on the following is available from the1175link:user-manual.html#git-concepts[Git concepts chapter of the1176user-manual] and linkgit:gitcore-tutorial[7].11771178A Git project normally consists of a working directory with a ".git"1179subdirectory at the top level. The .git directory contains, among other1180things, a compressed object database representing the complete history1181of the project, an "index" file which links that history to the current1182contents of the working tree, and named pointers into that history such1183as tags and branch heads.11841185The object database contains objects of three main types: blobs, which1186hold file data; trees, which point to blobs and other trees to build up1187directory hierarchies; and commits, which each reference a single tree1188and some number of parent commits.11891190The commit, equivalent to what other systems call a "changeset" or1191"version", represents a step in the project's history, and each parent1192represents an immediately preceding step. Commits with more than one1193parent represent merges of independent lines of development.11941195All objects are named by the SHA-1 hash of their contents, normally1196written as a string of 40 hex digits. Such names are globally unique.1197The entire history leading up to a commit can be vouched for by signing1198just that commit. A fourth object type, the tag, is provided for this1199purpose.12001201When first created, objects are stored in individual files, but for1202efficiency may later be compressed together into "pack files".12031204Named pointers called refs mark interesting points in history. A ref1205may contain the SHA-1 name of an object or the name of another ref. Refs1206with names beginning `ref/head/` contain the SHA-1 name of the most1207recent commit (or "head") of a branch under development. SHA-1 names of1208tags of interest are stored under `ref/tags/`. A special ref named1209`HEAD` contains the name of the currently checked-out branch.12101211The index file is initialized with a list of all paths and, for each1212path, a blob object and a set of attributes. The blob object represents1213the contents of the file as of the head of the current branch. The1214attributes (last modified time, size, etc.) are taken from the1215corresponding file in the working tree. Subsequent changes to the1216working tree can be found by comparing these attributes. The index may1217be updated with new content, and new commits may be created from the1218content stored in the index.12191220The index is also capable of storing multiple entries (called "stages")1221for a given pathname. These stages are used to hold the various1222unmerged version of a file when a merge is in progress.12231224FURTHER DOCUMENTATION1225---------------------12261227See the references in the "description" section to get started1228using Git. The following is probably more detail than necessary1229for a first-time user.12301231The link:user-manual.html#git-concepts[Git concepts chapter of the1232user-manual] and linkgit:gitcore-tutorial[7] both provide1233introductions to the underlying Git architecture.12341235See linkgit:gitworkflows[7] for an overview of recommended workflows.12361237See also the link:howto-index.html[howto] documents for some useful1238examples.12391240The internals are documented in the1241link:technical/api-index.html[Git API documentation].12421243Users migrating from CVS may also want to1244read linkgit:gitcvs-migration[7].124512461247Authors1248-------1249Git was started by Linus Torvalds, and is currently maintained by Junio1250C Hamano. Numerous contributions have come from the Git mailing list1251<git@vger.kernel.org>. http://www.openhub.net/p/git/contributors/summary1252gives you a more complete list of contributors.12531254If you have a clone of git.git itself, the1255output of linkgit:git-shortlog[1] and linkgit:git-blame[1] can show you1256the authors for specific parts of the project.12571258Reporting Bugs1259--------------12601261Report bugs to the Git mailing list <git@vger.kernel.org> where the1262development and maintenance is primarily done. You do not have to be1263subscribed to the list to send a message there.12641265SEE ALSO1266--------1267linkgit:gittutorial[7], linkgit:gittutorial-2[7],1268linkgit:giteveryday[7], linkgit:gitcvs-migration[7],1269linkgit:gitglossary[7], linkgit:gitcore-tutorial[7],1270linkgit:gitcli[7], link:user-manual.html[The Git User's Manual],1271linkgit:gitworkflows[7]12721273GIT1274---1275Part of the linkgit:git[1] suite