Documentation / git.txton commit Merge branch 'ta/config-set' (713ee7f)
   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
  34Formatted and hyperlinked version of the latest Git documentation
  35can be viewed at `http://git-htmldocs.googlecode.com/git/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:v2.1.2/git.html[documentation for release 2.1.2]
  47
  48* release notes for
  49  link:RelNotes/2.1.2.txt[2.1.2],
  50  link:RelNotes/2.1.1.txt[2.1.1],
  51  link:RelNotes/2.1.0.txt[2.1].
  52
  53* link:v2.0.4/git.html[documentation for release 2.0.4]
  54
  55* release notes for
  56  link:RelNotes/2.0.4.txt[2.0.4],
  57  link:RelNotes/2.0.3.txt[2.0.3],
  58  link:RelNotes/2.0.2.txt[2.0.2],
  59  link:RelNotes/2.0.1.txt[2.0.1],
  60  link:RelNotes/2.0.0.txt[2.0.0].
  61
  62* link:v1.9.4/git.html[documentation for release 1.9.4]
  63
  64* release notes for
  65  link:RelNotes/1.9.4.txt[1.9.4],
  66  link:RelNotes/1.9.3.txt[1.9.3],
  67  link:RelNotes/1.9.2.txt[1.9.2],
  68  link:RelNotes/1.9.1.txt[1.9.1],
  69  link:RelNotes/1.9.0.txt[1.9.0].
  70
  71* link:v1.8.5.5/git.html[documentation for release 1.8.5.5]
  72
  73* release notes for
  74  link:RelNotes/1.8.5.5.txt[1.8.5.5],
  75  link:RelNotes/1.8.5.4.txt[1.8.5.4],
  76  link:RelNotes/1.8.5.3.txt[1.8.5.3],
  77  link:RelNotes/1.8.5.2.txt[1.8.5.2],
  78  link:RelNotes/1.8.5.1.txt[1.8.5.1],
  79  link:RelNotes/1.8.5.txt[1.8.5].
  80
  81* link:v1.8.4.5/git.html[documentation for release 1.8.4.5]
  82
  83* release notes for
  84  link:RelNotes/1.8.4.5.txt[1.8.4.5],
  85  link:RelNotes/1.8.4.4.txt[1.8.4.4],
  86  link:RelNotes/1.8.4.3.txt[1.8.4.3],
  87  link:RelNotes/1.8.4.2.txt[1.8.4.2],
  88  link:RelNotes/1.8.4.1.txt[1.8.4.1],
  89  link:RelNotes/1.8.4.txt[1.8.4].
  90
  91* link:v1.8.3.4/git.html[documentation for release 1.8.3.4]
  92
  93* release notes for
  94  link:RelNotes/1.8.3.4.txt[1.8.3.4],
  95  link:RelNotes/1.8.3.3.txt[1.8.3.3],
  96  link:RelNotes/1.8.3.2.txt[1.8.3.2],
  97  link:RelNotes/1.8.3.1.txt[1.8.3.1],
  98  link:RelNotes/1.8.3.txt[1.8.3].
  99
 100* link:v1.8.2.3/git.html[documentation for release 1.8.2.3]
 101
 102* release notes for
 103  link:RelNotes/1.8.2.3.txt[1.8.2.3],
 104  link:RelNotes/1.8.2.2.txt[1.8.2.2],
 105  link:RelNotes/1.8.2.1.txt[1.8.2.1],
 106  link:RelNotes/1.8.2.txt[1.8.2].
 107
 108* link:v1.8.1.6/git.html[documentation for release 1.8.1.6]
 109
 110* release notes for
 111  link:RelNotes/1.8.1.6.txt[1.8.1.6],
 112  link:RelNotes/1.8.1.5.txt[1.8.1.5],
 113  link:RelNotes/1.8.1.4.txt[1.8.1.4],
 114  link:RelNotes/1.8.1.3.txt[1.8.1.3],
 115  link:RelNotes/1.8.1.2.txt[1.8.1.2],
 116  link:RelNotes/1.8.1.1.txt[1.8.1.1],
 117  link:RelNotes/1.8.1.txt[1.8.1].
 118
 119* link:v1.8.0.3/git.html[documentation for release 1.8.0.3]
 120
 121* release notes for
 122  link:RelNotes/1.8.0.3.txt[1.8.0.3],
 123  link:RelNotes/1.8.0.2.txt[1.8.0.2],
 124  link:RelNotes/1.8.0.1.txt[1.8.0.1],
 125  link:RelNotes/1.8.0.txt[1.8.0].
 126
 127* link:v1.7.12.4/git.html[documentation for release 1.7.12.4]
 128
 129* release notes for
 130  link:RelNotes/1.7.12.4.txt[1.7.12.4],
 131  link:RelNotes/1.7.12.3.txt[1.7.12.3],
 132  link:RelNotes/1.7.12.2.txt[1.7.12.2],
 133  link:RelNotes/1.7.12.1.txt[1.7.12.1],
 134  link:RelNotes/1.7.12.txt[1.7.12].
 135
 136* link:v1.7.11.7/git.html[documentation for release 1.7.11.7]
 137
 138* release notes for
 139  link:RelNotes/1.7.11.7.txt[1.7.11.7],
 140  link:RelNotes/1.7.11.6.txt[1.7.11.6],
 141  link:RelNotes/1.7.11.5.txt[1.7.11.5],
 142  link:RelNotes/1.7.11.4.txt[1.7.11.4],
 143  link:RelNotes/1.7.11.3.txt[1.7.11.3],
 144  link:RelNotes/1.7.11.2.txt[1.7.11.2],
 145  link:RelNotes/1.7.11.1.txt[1.7.11.1],
 146  link:RelNotes/1.7.11.txt[1.7.11].
 147
 148* link:v1.7.10.5/git.html[documentation for release 1.7.10.5]
 149
 150* release notes for
 151  link:RelNotes/1.7.10.5.txt[1.7.10.5],
 152  link:RelNotes/1.7.10.4.txt[1.7.10.4],
 153  link:RelNotes/1.7.10.3.txt[1.7.10.3],
 154  link:RelNotes/1.7.10.2.txt[1.7.10.2],
 155  link:RelNotes/1.7.10.1.txt[1.7.10.1],
 156  link:RelNotes/1.7.10.txt[1.7.10].
 157
 158* link:v1.7.9.7/git.html[documentation for release 1.7.9.7]
 159
 160* release notes for
 161  link:RelNotes/1.7.9.7.txt[1.7.9.7],
 162  link:RelNotes/1.7.9.6.txt[1.7.9.6],
 163  link:RelNotes/1.7.9.5.txt[1.7.9.5],
 164  link:RelNotes/1.7.9.4.txt[1.7.9.4],
 165  link:RelNotes/1.7.9.3.txt[1.7.9.3],
 166  link:RelNotes/1.7.9.2.txt[1.7.9.2],
 167  link:RelNotes/1.7.9.1.txt[1.7.9.1],
 168  link:RelNotes/1.7.9.txt[1.7.9].
 169
 170* link:v1.7.8.6/git.html[documentation for release 1.7.8.6]
 171
 172* release notes for
 173  link:RelNotes/1.7.8.6.txt[1.7.8.6],
 174  link:RelNotes/1.7.8.5.txt[1.7.8.5],
 175  link:RelNotes/1.7.8.4.txt[1.7.8.4],
 176  link:RelNotes/1.7.8.3.txt[1.7.8.3],
 177  link:RelNotes/1.7.8.2.txt[1.7.8.2],
 178  link:RelNotes/1.7.8.1.txt[1.7.8.1],
 179  link:RelNotes/1.7.8.txt[1.7.8].
 180
 181* link:v1.7.7.7/git.html[documentation for release 1.7.7.7]
 182
 183* release notes for
 184  link:RelNotes/1.7.7.7.txt[1.7.7.7],
 185  link:RelNotes/1.7.7.6.txt[1.7.7.6],
 186  link:RelNotes/1.7.7.5.txt[1.7.7.5],
 187  link:RelNotes/1.7.7.4.txt[1.7.7.4],
 188  link:RelNotes/1.7.7.3.txt[1.7.7.3],
 189  link:RelNotes/1.7.7.2.txt[1.7.7.2],
 190  link:RelNotes/1.7.7.1.txt[1.7.7.1],
 191  link:RelNotes/1.7.7.txt[1.7.7].
 192
 193* link:v1.7.6.6/git.html[documentation for release 1.7.6.6]
 194
 195* release notes for
 196  link:RelNotes/1.7.6.6.txt[1.7.6.6],
 197  link:RelNotes/1.7.6.5.txt[1.7.6.5],
 198  link:RelNotes/1.7.6.4.txt[1.7.6.4],
 199  link:RelNotes/1.7.6.3.txt[1.7.6.3],
 200  link:RelNotes/1.7.6.2.txt[1.7.6.2],
 201  link:RelNotes/1.7.6.1.txt[1.7.6.1],
 202  link:RelNotes/1.7.6.txt[1.7.6].
 203
 204* link:v1.7.5.4/git.html[documentation for release 1.7.5.4]
 205
 206* release notes for
 207  link:RelNotes/1.7.5.4.txt[1.7.5.4],
 208  link:RelNotes/1.7.5.3.txt[1.7.5.3],
 209  link:RelNotes/1.7.5.2.txt[1.7.5.2],
 210  link:RelNotes/1.7.5.1.txt[1.7.5.1],
 211  link:RelNotes/1.7.5.txt[1.7.5].
 212
 213* link:v1.7.4.5/git.html[documentation for release 1.7.4.5]
 214
 215* release notes for
 216  link:RelNotes/1.7.4.5.txt[1.7.4.5],
 217  link:RelNotes/1.7.4.4.txt[1.7.4.4],
 218  link:RelNotes/1.7.4.3.txt[1.7.4.3],
 219  link:RelNotes/1.7.4.2.txt[1.7.4.2],
 220  link:RelNotes/1.7.4.1.txt[1.7.4.1],
 221  link:RelNotes/1.7.4.txt[1.7.4].
 222
 223* link:v1.7.3.5/git.html[documentation for release 1.7.3.5]
 224
 225* release notes for
 226  link:RelNotes/1.7.3.5.txt[1.7.3.5],
 227  link:RelNotes/1.7.3.4.txt[1.7.3.4],
 228  link:RelNotes/1.7.3.3.txt[1.7.3.3],
 229  link:RelNotes/1.7.3.2.txt[1.7.3.2],
 230  link:RelNotes/1.7.3.1.txt[1.7.3.1],
 231  link:RelNotes/1.7.3.txt[1.7.3].
 232
 233* link:v1.7.2.5/git.html[documentation for release 1.7.2.5]
 234
 235* release notes for
 236  link:RelNotes/1.7.2.5.txt[1.7.2.5],
 237  link:RelNotes/1.7.2.4.txt[1.7.2.4],
 238  link:RelNotes/1.7.2.3.txt[1.7.2.3],
 239  link:RelNotes/1.7.2.2.txt[1.7.2.2],
 240  link:RelNotes/1.7.2.1.txt[1.7.2.1],
 241  link:RelNotes/1.7.2.txt[1.7.2].
 242
 243* link:v1.7.1.4/git.html[documentation for release 1.7.1.4]
 244
 245* release notes for
 246  link:RelNotes/1.7.1.4.txt[1.7.1.4],
 247  link:RelNotes/1.7.1.3.txt[1.7.1.3],
 248  link:RelNotes/1.7.1.2.txt[1.7.1.2],
 249  link:RelNotes/1.7.1.1.txt[1.7.1.1],
 250  link:RelNotes/1.7.1.txt[1.7.1].
 251
 252* link:v1.7.0.9/git.html[documentation for release 1.7.0.9]
 253
 254* release notes for
 255  link:RelNotes/1.7.0.9.txt[1.7.0.9],
 256  link:RelNotes/1.7.0.8.txt[1.7.0.8],
 257  link:RelNotes/1.7.0.7.txt[1.7.0.7],
 258  link:RelNotes/1.7.0.6.txt[1.7.0.6],
 259  link:RelNotes/1.7.0.5.txt[1.7.0.5],
 260  link:RelNotes/1.7.0.4.txt[1.7.0.4],
 261  link:RelNotes/1.7.0.3.txt[1.7.0.3],
 262  link:RelNotes/1.7.0.2.txt[1.7.0.2],
 263  link:RelNotes/1.7.0.1.txt[1.7.0.1],
 264  link:RelNotes/1.7.0.txt[1.7.0].
 265
 266* link:v1.6.6.3/git.html[documentation for release 1.6.6.3]
 267
 268* release notes for
 269  link:RelNotes/1.6.6.3.txt[1.6.6.3],
 270  link:RelNotes/1.6.6.2.txt[1.6.6.2],
 271  link:RelNotes/1.6.6.1.txt[1.6.6.1],
 272  link:RelNotes/1.6.6.txt[1.6.6].
 273
 274* link:v1.6.5.9/git.html[documentation for release 1.6.5.9]
 275
 276* release notes for
 277  link:RelNotes/1.6.5.9.txt[1.6.5.9],
 278  link:RelNotes/1.6.5.8.txt[1.6.5.8],
 279  link:RelNotes/1.6.5.7.txt[1.6.5.7],
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 285  link:RelNotes/1.6.5.1.txt[1.6.5.1],
 286  link:RelNotes/1.6.5.txt[1.6.5].
 287
 288* link:v1.6.4.5/git.html[documentation for release 1.6.4.5]
 289
 290* release notes for
 291  link:RelNotes/1.6.4.5.txt[1.6.4.5],
 292  link:RelNotes/1.6.4.4.txt[1.6.4.4],
 293  link:RelNotes/1.6.4.3.txt[1.6.4.3],
 294  link:RelNotes/1.6.4.2.txt[1.6.4.2],
 295  link:RelNotes/1.6.4.1.txt[1.6.4.1],
 296  link:RelNotes/1.6.4.txt[1.6.4].
 297
 298* link:v1.6.3.4/git.html[documentation for release 1.6.3.4]
 299
 300* release notes for
 301  link:RelNotes/1.6.3.4.txt[1.6.3.4],
 302  link:RelNotes/1.6.3.3.txt[1.6.3.3],
 303  link:RelNotes/1.6.3.2.txt[1.6.3.2],
 304  link:RelNotes/1.6.3.1.txt[1.6.3.1],
 305  link:RelNotes/1.6.3.txt[1.6.3].
 306
 307* release notes for
 308  link:RelNotes/1.6.2.5.txt[1.6.2.5],
 309  link:RelNotes/1.6.2.4.txt[1.6.2.4],
 310  link:RelNotes/1.6.2.3.txt[1.6.2.3],
 311  link:RelNotes/1.6.2.2.txt[1.6.2.2],
 312  link:RelNotes/1.6.2.1.txt[1.6.2.1],
 313  link:RelNotes/1.6.2.txt[1.6.2].
 314
 315* link:v1.6.1.3/git.html[documentation for release 1.6.1.3]
 316
 317* release notes for
 318  link:RelNotes/1.6.1.3.txt[1.6.1.3],
 319  link:RelNotes/1.6.1.2.txt[1.6.1.2],
 320  link:RelNotes/1.6.1.1.txt[1.6.1.1],
 321  link:RelNotes/1.6.1.txt[1.6.1].
 322
 323* link:v1.6.0.6/git.html[documentation for release 1.6.0.6]
 324
 325* release notes for
 326  link:RelNotes/1.6.0.6.txt[1.6.0.6],
 327  link:RelNotes/1.6.0.5.txt[1.6.0.5],
 328  link:RelNotes/1.6.0.4.txt[1.6.0.4],
 329  link:RelNotes/1.6.0.3.txt[1.6.0.3],
 330  link:RelNotes/1.6.0.2.txt[1.6.0.2],
 331  link:RelNotes/1.6.0.1.txt[1.6.0.1],
 332  link:RelNotes/1.6.0.txt[1.6.0].
 333
 334* link:v1.5.6.6/git.html[documentation for release 1.5.6.6]
 335
 336* release notes for
 337  link:RelNotes/1.5.6.6.txt[1.5.6.6],
 338  link:RelNotes/1.5.6.5.txt[1.5.6.5],
 339  link:RelNotes/1.5.6.4.txt[1.5.6.4],
 340  link:RelNotes/1.5.6.3.txt[1.5.6.3],
 341  link:RelNotes/1.5.6.2.txt[1.5.6.2],
 342  link:RelNotes/1.5.6.1.txt[1.5.6.1],
 343  link:RelNotes/1.5.6.txt[1.5.6].
 344
 345* link:v1.5.5.6/git.html[documentation for release 1.5.5.6]
 346
 347* release notes for
 348  link:RelNotes/1.5.5.6.txt[1.5.5.6],
 349  link:RelNotes/1.5.5.5.txt[1.5.5.5],
 350  link:RelNotes/1.5.5.4.txt[1.5.5.4],
 351  link:RelNotes/1.5.5.3.txt[1.5.5.3],
 352  link:RelNotes/1.5.5.2.txt[1.5.5.2],
 353  link:RelNotes/1.5.5.1.txt[1.5.5.1],
 354  link:RelNotes/1.5.5.txt[1.5.5].
 355
 356* link:v1.5.4.7/git.html[documentation for release 1.5.4.7]
 357
 358* release notes for
 359  link:RelNotes/1.5.4.7.txt[1.5.4.7],
 360  link:RelNotes/1.5.4.6.txt[1.5.4.6],
 361  link:RelNotes/1.5.4.5.txt[1.5.4.5],
 362  link:RelNotes/1.5.4.4.txt[1.5.4.4],
 363  link:RelNotes/1.5.4.3.txt[1.5.4.3],
 364  link:RelNotes/1.5.4.2.txt[1.5.4.2],
 365  link:RelNotes/1.5.4.1.txt[1.5.4.1],
 366  link:RelNotes/1.5.4.txt[1.5.4].
 367
 368* link:v1.5.3.8/git.html[documentation for release 1.5.3.8]
 369
 370* release notes for
 371  link:RelNotes/1.5.3.8.txt[1.5.3.8],
 372  link:RelNotes/1.5.3.7.txt[1.5.3.7],
 373  link:RelNotes/1.5.3.6.txt[1.5.3.6],
 374  link:RelNotes/1.5.3.5.txt[1.5.3.5],
 375  link:RelNotes/1.5.3.4.txt[1.5.3.4],
 376  link:RelNotes/1.5.3.3.txt[1.5.3.3],
 377  link:RelNotes/1.5.3.2.txt[1.5.3.2],
 378  link:RelNotes/1.5.3.1.txt[1.5.3.1],
 379  link:RelNotes/1.5.3.txt[1.5.3].
 380
 381* link:v1.5.2.5/git.html[documentation for release 1.5.2.5]
 382
 383* release notes for
 384  link:RelNotes/1.5.2.5.txt[1.5.2.5],
 385  link:RelNotes/1.5.2.4.txt[1.5.2.4],
 386  link:RelNotes/1.5.2.3.txt[1.5.2.3],
 387  link:RelNotes/1.5.2.2.txt[1.5.2.2],
 388  link:RelNotes/1.5.2.1.txt[1.5.2.1],
 389  link:RelNotes/1.5.2.txt[1.5.2].
 390
 391* link:v1.5.1.6/git.html[documentation for release 1.5.1.6]
 392
 393* release notes for
 394  link:RelNotes/1.5.1.6.txt[1.5.1.6],
 395  link:RelNotes/1.5.1.5.txt[1.5.1.5],
 396  link:RelNotes/1.5.1.4.txt[1.5.1.4],
 397  link:RelNotes/1.5.1.3.txt[1.5.1.3],
 398  link:RelNotes/1.5.1.2.txt[1.5.1.2],
 399  link:RelNotes/1.5.1.1.txt[1.5.1.1],
 400  link:RelNotes/1.5.1.txt[1.5.1].
 401
 402* link:v1.5.0.7/git.html[documentation for release 1.5.0.7]
 403
 404* release notes for
 405  link:RelNotes/1.5.0.7.txt[1.5.0.7],
 406  link:RelNotes/1.5.0.6.txt[1.5.0.6],
 407  link:RelNotes/1.5.0.5.txt[1.5.0.5],
 408  link:RelNotes/1.5.0.3.txt[1.5.0.3],
 409  link:RelNotes/1.5.0.2.txt[1.5.0.2],
 410  link:RelNotes/1.5.0.1.txt[1.5.0.1],
 411  link:RelNotes/1.5.0.txt[1.5.0].
 412
 413* documentation for release link:v1.4.4.4/git.html[1.4.4.4],
 414  link:v1.3.3/git.html[1.3.3],
 415  link:v1.2.6/git.html[1.2.6],
 416  link:v1.0.13/git.html[1.0.13].
 417
 418============
 419
 420endif::stalenotes[]
 421
 422OPTIONS
 423-------
 424--version::
 425        Prints the Git suite version that the 'git' program came from.
 426
 427--help::
 428        Prints the synopsis and a list of the most commonly used
 429        commands. If the option '--all' or '-a' is given then all
 430        available commands are printed. If a Git command is named this
 431        option will bring up the manual page for that command.
 432+
 433Other options are available to control how the manual page is
 434displayed. See linkgit:git-help[1] for more information,
 435because `git --help ...` is converted internally into `git
 436help ...`.
 437
 438-C <path>::
 439        Run as if git was started in '<path>' instead of the current working
 440        directory.  When multiple `-C` options are given, each subsequent
 441        non-absolute `-C <path>` is interpreted relative to the preceding `-C
 442        <path>`.
 443+
 444This option affects options that expect path name like `--git-dir` and
 445`--work-tree` in that their interpretations of the path names would be
 446made relative to the working directory caused by the `-C` option. For
 447example the following invocations are equivalent:
 448
 449    git --git-dir=a.git --work-tree=b -C c status
 450    git --git-dir=c/a.git --work-tree=c/b status
 451
 452-c <name>=<value>::
 453        Pass a configuration parameter to the command. The value
 454        given will override values from configuration files.
 455        The <name> is expected in the same format as listed by
 456        'git config' (subkeys separated by dots).
 457+
 458Note that omitting the `=` in `git -c foo.bar ...` is allowed and sets
 459`foo.bar` to the boolean true value (just like `[foo]bar` would in a
 460config file). Including the equals but with an empty value (like `git -c
 461foo.bar= ...`) sets `foo.bar` to the empty string.
 462
 463--exec-path[=<path>]::
 464        Path to wherever your core Git programs are installed.
 465        This can also be controlled by setting the GIT_EXEC_PATH
 466        environment variable. If no path is given, 'git' will print
 467        the current setting and then exit.
 468
 469--html-path::
 470        Print the path, without trailing slash, where Git's HTML
 471        documentation is installed and exit.
 472
 473--man-path::
 474        Print the manpath (see `man(1)`) for the man pages for
 475        this version of Git and exit.
 476
 477--info-path::
 478        Print the path where the Info files documenting this
 479        version of Git are installed and exit.
 480
 481-p::
 482--paginate::
 483        Pipe all output into 'less' (or if set, $PAGER) if standard
 484        output is a terminal.  This overrides the `pager.<cmd>`
 485        configuration options (see the "Configuration Mechanism" section
 486        below).
 487
 488--no-pager::
 489        Do not pipe Git output into a pager.
 490
 491--git-dir=<path>::
 492        Set the path to the repository. This can also be controlled by
 493        setting the GIT_DIR environment variable. It can be an absolute
 494        path or relative path to current working directory.
 495
 496--work-tree=<path>::
 497        Set the path to the working tree. It can be an absolute path
 498        or a path relative to the current working directory.
 499        This can also be controlled by setting the GIT_WORK_TREE
 500        environment variable and the core.worktree configuration
 501        variable (see core.worktree in linkgit:git-config[1] for a
 502        more detailed discussion).
 503
 504--namespace=<path>::
 505        Set the Git namespace.  See linkgit:gitnamespaces[7] for more
 506        details.  Equivalent to setting the `GIT_NAMESPACE` environment
 507        variable.
 508
 509--bare::
 510        Treat the repository as a bare repository.  If GIT_DIR
 511        environment is not set, it is set to the current working
 512        directory.
 513
 514--no-replace-objects::
 515        Do not use replacement refs to replace Git objects. See
 516        linkgit:git-replace[1] for more information.
 517
 518--literal-pathspecs::
 519        Treat pathspecs literally (i.e. no globbing, no pathspec magic).
 520        This is equivalent to setting the `GIT_LITERAL_PATHSPECS` environment
 521        variable to `1`.
 522
 523--glob-pathspecs::
 524        Add "glob" magic to all pathspec. This is equivalent to setting
 525        the `GIT_GLOB_PATHSPECS` environment variable to `1`. Disabling
 526        globbing on individual pathspecs can be done using pathspec
 527        magic ":(literal)"
 528
 529--noglob-pathspecs::
 530        Add "literal" magic to all pathspec. This is equivalent to setting
 531        the `GIT_NOGLOB_PATHSPECS` environment variable to `1`. Enabling
 532        globbing on individual pathspecs can be done using pathspec
 533        magic ":(glob)"
 534
 535--icase-pathspecs::
 536        Add "icase" magic to all pathspec. This is equivalent to setting
 537        the `GIT_ICASE_PATHSPECS` environment variable to `1`.
 538
 539GIT COMMANDS
 540------------
 541
 542We divide Git into high level ("porcelain") commands and low level
 543("plumbing") commands.
 544
 545High-level commands (porcelain)
 546-------------------------------
 547
 548We separate the porcelain commands into the main commands and some
 549ancillary user utilities.
 550
 551Main porcelain commands
 552~~~~~~~~~~~~~~~~~~~~~~~
 553
 554include::cmds-mainporcelain.txt[]
 555
 556Ancillary Commands
 557~~~~~~~~~~~~~~~~~~
 558Manipulators:
 559
 560include::cmds-ancillarymanipulators.txt[]
 561
 562Interrogators:
 563
 564include::cmds-ancillaryinterrogators.txt[]
 565
 566
 567Interacting with Others
 568~~~~~~~~~~~~~~~~~~~~~~~
 569
 570These commands are to interact with foreign SCM and with other
 571people via patch over e-mail.
 572
 573include::cmds-foreignscminterface.txt[]
 574
 575
 576Low-level commands (plumbing)
 577-----------------------------
 578
 579Although Git includes its
 580own porcelain layer, its low-level commands are sufficient to support
 581development of alternative porcelains.  Developers of such porcelains
 582might start by reading about linkgit:git-update-index[1] and
 583linkgit:git-read-tree[1].
 584
 585The interface (input, output, set of options and the semantics)
 586to these low-level commands are meant to be a lot more stable
 587than Porcelain level commands, because these commands are
 588primarily for scripted use.  The interface to Porcelain commands
 589on the other hand are subject to change in order to improve the
 590end user experience.
 591
 592The following description divides
 593the low-level commands into commands that manipulate objects (in
 594the repository, index, and working tree), commands that interrogate and
 595compare objects, and commands that move objects and references between
 596repositories.
 597
 598
 599Manipulation commands
 600~~~~~~~~~~~~~~~~~~~~~
 601
 602include::cmds-plumbingmanipulators.txt[]
 603
 604
 605Interrogation commands
 606~~~~~~~~~~~~~~~~~~~~~~
 607
 608include::cmds-plumbinginterrogators.txt[]
 609
 610In general, the interrogate commands do not touch the files in
 611the working tree.
 612
 613
 614Synching repositories
 615~~~~~~~~~~~~~~~~~~~~~
 616
 617include::cmds-synchingrepositories.txt[]
 618
 619The following are helper commands used by the above; end users
 620typically do not use them directly.
 621
 622include::cmds-synchelpers.txt[]
 623
 624
 625Internal helper commands
 626~~~~~~~~~~~~~~~~~~~~~~~~
 627
 628These are internal helper commands used by other commands; end
 629users typically do not use them directly.
 630
 631include::cmds-purehelpers.txt[]
 632
 633
 634Configuration Mechanism
 635-----------------------
 636
 637Git uses a simple text format to store customizations that are per
 638repository and are per user.  Such a configuration file may look
 639like this:
 640
 641------------
 642#
 643# A '#' or ';' character indicates a comment.
 644#
 645
 646; core variables
 647[core]
 648        ; Don't trust file modes
 649        filemode = false
 650
 651; user identity
 652[user]
 653        name = "Junio C Hamano"
 654        email = "gitster@pobox.com"
 655
 656------------
 657
 658Various commands read from the configuration file and adjust
 659their operation accordingly.  See linkgit:git-config[1] for a
 660list and more details about the configuration mechanism.
 661
 662
 663Identifier Terminology
 664----------------------
 665<object>::
 666        Indicates the object name for any type of object.
 667
 668<blob>::
 669        Indicates a blob object name.
 670
 671<tree>::
 672        Indicates a tree object name.
 673
 674<commit>::
 675        Indicates a commit object name.
 676
 677<tree-ish>::
 678        Indicates a tree, commit or tag object name.  A
 679        command that takes a <tree-ish> argument ultimately wants to
 680        operate on a <tree> object but automatically dereferences
 681        <commit> and <tag> objects that point at a <tree>.
 682
 683<commit-ish>::
 684        Indicates a commit or tag object name.  A
 685        command that takes a <commit-ish> argument ultimately wants to
 686        operate on a <commit> object but automatically dereferences
 687        <tag> objects that point at a <commit>.
 688
 689<type>::
 690        Indicates that an object type is required.
 691        Currently one of: `blob`, `tree`, `commit`, or `tag`.
 692
 693<file>::
 694        Indicates a filename - almost always relative to the
 695        root of the tree structure `GIT_INDEX_FILE` describes.
 696
 697Symbolic Identifiers
 698--------------------
 699Any Git command accepting any <object> can also use the following
 700symbolic notation:
 701
 702HEAD::
 703        indicates the head of the current branch.
 704
 705<tag>::
 706        a valid tag 'name'
 707        (i.e. a `refs/tags/<tag>` reference).
 708
 709<head>::
 710        a valid head 'name'
 711        (i.e. a `refs/heads/<head>` reference).
 712
 713For a more complete list of ways to spell object names, see
 714"SPECIFYING REVISIONS" section in linkgit:gitrevisions[7].
 715
 716
 717File/Directory Structure
 718------------------------
 719
 720Please see the linkgit:gitrepository-layout[5] document.
 721
 722Read linkgit:githooks[5] for more details about each hook.
 723
 724Higher level SCMs may provide and manage additional information in the
 725`$GIT_DIR`.
 726
 727
 728Terminology
 729-----------
 730Please see linkgit:gitglossary[7].
 731
 732
 733Environment Variables
 734---------------------
 735Various Git commands use the following environment variables:
 736
 737The Git Repository
 738~~~~~~~~~~~~~~~~~~
 739These environment variables apply to 'all' core Git commands. Nb: it
 740is worth noting that they may be used/overridden by SCMS sitting above
 741Git so take care if using Cogito etc.
 742
 743'GIT_INDEX_FILE'::
 744        This environment allows the specification of an alternate
 745        index file. If not specified, the default of `$GIT_DIR/index`
 746        is used.
 747
 748'GIT_INDEX_VERSION'::
 749        This environment variable allows the specification of an index
 750        version for new repositories.  It won't affect existing index
 751        files.  By default index file version [23] is used.
 752
 753'GIT_OBJECT_DIRECTORY'::
 754        If the object storage directory is specified via this
 755        environment variable then the sha1 directories are created
 756        underneath - otherwise the default `$GIT_DIR/objects`
 757        directory is used.
 758
 759'GIT_ALTERNATE_OBJECT_DIRECTORIES'::
 760        Due to the immutable nature of Git objects, old objects can be
 761        archived into shared, read-only directories. This variable
 762        specifies a ":" separated (on Windows ";" separated) list
 763        of Git object directories which can be used to search for Git
 764        objects. New objects will not be written to these directories.
 765
 766'GIT_DIR'::
 767        If the 'GIT_DIR' environment variable is set then it
 768        specifies a path to use instead of the default `.git`
 769        for the base of the repository.
 770        The '--git-dir' command-line option also sets this value.
 771
 772'GIT_WORK_TREE'::
 773        Set the path to the root of the working tree.
 774        This can also be controlled by the '--work-tree' command-line
 775        option and the core.worktree configuration variable.
 776
 777'GIT_NAMESPACE'::
 778        Set the Git namespace; see linkgit:gitnamespaces[7] for details.
 779        The '--namespace' command-line option also sets this value.
 780
 781'GIT_CEILING_DIRECTORIES'::
 782        This should be a colon-separated list of absolute paths.  If
 783        set, it is a list of directories that Git should not chdir up
 784        into while looking for a repository directory (useful for
 785        excluding slow-loading network directories).  It will not
 786        exclude the current working directory or a GIT_DIR set on the
 787        command line or in the environment.  Normally, Git has to read
 788        the entries in this list and resolve any symlink that
 789        might be present in order to compare them with the current
 790        directory.  However, if even this access is slow, you
 791        can add an empty entry to the list to tell Git that the
 792        subsequent entries are not symlinks and needn't be resolved;
 793        e.g.,
 794        'GIT_CEILING_DIRECTORIES=/maybe/symlink::/very/slow/non/symlink'.
 795
 796'GIT_DISCOVERY_ACROSS_FILESYSTEM'::
 797        When run in a directory that does not have ".git" repository
 798        directory, Git tries to find such a directory in the parent
 799        directories to find the top of the working tree, but by default it
 800        does not cross filesystem boundaries.  This environment variable
 801        can be set to true to tell Git not to stop at filesystem
 802        boundaries.  Like 'GIT_CEILING_DIRECTORIES', this will not affect
 803        an explicit repository directory set via 'GIT_DIR' or on the
 804        command line.
 805
 806Git Commits
 807~~~~~~~~~~~
 808'GIT_AUTHOR_NAME'::
 809'GIT_AUTHOR_EMAIL'::
 810'GIT_AUTHOR_DATE'::
 811'GIT_COMMITTER_NAME'::
 812'GIT_COMMITTER_EMAIL'::
 813'GIT_COMMITTER_DATE'::
 814'EMAIL'::
 815        see linkgit:git-commit-tree[1]
 816
 817Git Diffs
 818~~~~~~~~~
 819'GIT_DIFF_OPTS'::
 820        Only valid setting is "--unified=??" or "-u??" to set the
 821        number of context lines shown when a unified diff is created.
 822        This takes precedence over any "-U" or "--unified" option
 823        value passed on the Git diff command line.
 824
 825'GIT_EXTERNAL_DIFF'::
 826        When the environment variable 'GIT_EXTERNAL_DIFF' is set, the
 827        program named by it is called, instead of the diff invocation
 828        described above.  For a path that is added, removed, or modified,
 829        'GIT_EXTERNAL_DIFF' is called with 7 parameters:
 830
 831        path old-file old-hex old-mode new-file new-hex new-mode
 832+
 833where:
 834
 835        <old|new>-file:: are files GIT_EXTERNAL_DIFF can use to read the
 836                         contents of <old|new>,
 837        <old|new>-hex:: are the 40-hexdigit SHA-1 hashes,
 838        <old|new>-mode:: are the octal representation of the file modes.
 839+
 840The file parameters can point at the user's working file
 841(e.g. `new-file` in "git-diff-files"), `/dev/null` (e.g. `old-file`
 842when a new file is added), or a temporary file (e.g. `old-file` in the
 843index).  'GIT_EXTERNAL_DIFF' should not worry about unlinking the
 844temporary file --- it is removed when 'GIT_EXTERNAL_DIFF' exits.
 845+
 846For a path that is unmerged, 'GIT_EXTERNAL_DIFF' is called with 1
 847parameter, <path>.
 848+
 849For each path 'GIT_EXTERNAL_DIFF' is called, two environment variables,
 850'GIT_DIFF_PATH_COUNTER' and 'GIT_DIFF_PATH_TOTAL' are set.
 851
 852'GIT_DIFF_PATH_COUNTER'::
 853        A 1-based counter incremented by one for every path.
 854
 855'GIT_DIFF_PATH_TOTAL'::
 856        The total number of paths.
 857
 858other
 859~~~~~
 860'GIT_MERGE_VERBOSITY'::
 861        A number controlling the amount of output shown by
 862        the recursive merge strategy.  Overrides merge.verbosity.
 863        See linkgit:git-merge[1]
 864
 865'GIT_PAGER'::
 866        This environment variable overrides `$PAGER`. If it is set
 867        to an empty string or to the value "cat", Git will not launch
 868        a pager.  See also the `core.pager` option in
 869        linkgit:git-config[1].
 870
 871'GIT_EDITOR'::
 872        This environment variable overrides `$EDITOR` and `$VISUAL`.
 873        It is used by several Git commands when, on interactive mode,
 874        an editor is to be launched. See also linkgit:git-var[1]
 875        and the `core.editor` option in linkgit:git-config[1].
 876
 877'GIT_SSH'::
 878        If this environment variable is set then 'git fetch'
 879        and 'git push' will use this command instead
 880        of 'ssh' when they need to connect to a remote system.
 881        The '$GIT_SSH' command will be given exactly two or
 882        four arguments: the 'username@host' (or just 'host')
 883        from the URL and the shell command to execute on that
 884        remote system, optionally preceded by '-p' (literally) and
 885        the 'port' from the URL when it specifies something other
 886        than the default SSH port.
 887+
 888To pass options to the program that you want to list in GIT_SSH
 889you will need to wrap the program and options into a shell script,
 890then set GIT_SSH to refer to the shell script.
 891+
 892Usually it is easier to configure any desired options through your
 893personal `.ssh/config` file.  Please consult your ssh documentation
 894for further details.
 895
 896'GIT_ASKPASS'::
 897        If this environment variable is set, then Git commands which need to
 898        acquire passwords or passphrases (e.g. for HTTP or IMAP authentication)
 899        will call this program with a suitable prompt as command-line argument
 900        and read the password from its STDOUT. See also the 'core.askpass'
 901        option in linkgit:git-config[1].
 902
 903'GIT_CONFIG_NOSYSTEM'::
 904        Whether to skip reading settings from the system-wide
 905        `$(prefix)/etc/gitconfig` file.  This environment variable can
 906        be used along with `$HOME` and `$XDG_CONFIG_HOME` to create a
 907        predictable environment for a picky script, or you can set it
 908        temporarily to avoid using a buggy `/etc/gitconfig` file while
 909        waiting for someone with sufficient permissions to fix it.
 910
 911'GIT_FLUSH'::
 912        If this environment variable is set to "1", then commands such
 913        as 'git blame' (in incremental mode), 'git rev-list', 'git log',
 914        'git check-attr' and 'git check-ignore' will
 915        force a flush of the output stream after each record have been
 916        flushed. If this
 917        variable is set to "0", the output of these commands will be done
 918        using completely buffered I/O.   If this environment variable is
 919        not set, Git will choose buffered or record-oriented flushing
 920        based on whether stdout appears to be redirected to a file or not.
 921
 922'GIT_TRACE'::
 923        Enables general trace messages, e.g. alias expansion, built-in
 924        command execution and external command execution.
 925+
 926If this variable is set to "1", "2" or "true" (comparison
 927is case insensitive), trace messages will be printed to
 928stderr.
 929+
 930If the variable is set to an integer value greater than 2
 931and lower than 10 (strictly) then Git will interpret this
 932value as an open file descriptor and will try to write the
 933trace messages into this file descriptor.
 934+
 935Alternatively, if the variable is set to an absolute path
 936(starting with a '/' character), Git will interpret this
 937as a file path and will try to write the trace messages
 938into it.
 939+
 940Unsetting the variable, or setting it to empty, "0" or
 941"false" (case insensitive) disables trace messages.
 942
 943'GIT_TRACE_PACK_ACCESS'::
 944        Enables trace messages for all accesses to any packs. For each
 945        access, the pack file name and an offset in the pack is
 946        recorded. This may be helpful for troubleshooting some
 947        pack-related performance problems.
 948        See 'GIT_TRACE' for available trace output options.
 949
 950'GIT_TRACE_PACKET'::
 951        Enables trace messages for all packets coming in or out of a
 952        given program. This can help with debugging object negotiation
 953        or other protocol issues. Tracing is turned off at a packet
 954        starting with "PACK".
 955        See 'GIT_TRACE' for available trace output options.
 956
 957'GIT_TRACE_PERFORMANCE'::
 958        Enables performance related trace messages, e.g. total execution
 959        time of each Git command.
 960        See 'GIT_TRACE' for available trace output options.
 961
 962'GIT_TRACE_SETUP'::
 963        Enables trace messages printing the .git, working tree and current
 964        working directory after Git has completed its setup phase.
 965        See 'GIT_TRACE' for available trace output options.
 966
 967'GIT_TRACE_SHALLOW'::
 968        Enables trace messages that can help debugging fetching /
 969        cloning of shallow repositories.
 970        See 'GIT_TRACE' for available trace output options.
 971
 972GIT_LITERAL_PATHSPECS::
 973        Setting this variable to `1` will cause Git to treat all
 974        pathspecs literally, rather than as glob patterns. For example,
 975        running `GIT_LITERAL_PATHSPECS=1 git log -- '*.c'` will search
 976        for commits that touch the path `*.c`, not any paths that the
 977        glob `*.c` matches. You might want this if you are feeding
 978        literal paths to Git (e.g., paths previously given to you by
 979        `git ls-tree`, `--raw` diff output, etc).
 980
 981GIT_GLOB_PATHSPECS::
 982        Setting this variable to `1` will cause Git to treat all
 983        pathspecs as glob patterns (aka "glob" magic).
 984
 985GIT_NOGLOB_PATHSPECS::
 986        Setting this variable to `1` will cause Git to treat all
 987        pathspecs as literal (aka "literal" magic).
 988
 989GIT_ICASE_PATHSPECS::
 990        Setting this variable to `1` will cause Git to treat all
 991        pathspecs as case-insensitive.
 992
 993'GIT_REFLOG_ACTION'::
 994        When a ref is updated, reflog entries are created to keep
 995        track of the reason why the ref was updated (which is
 996        typically the name of the high-level command that updated
 997        the ref), in addition to the old and new values of the ref.
 998        A scripted Porcelain command can use set_reflog_action
 999        helper function in `git-sh-setup` to set its name to this
1000        variable when it is invoked as the top level command by the
1001        end user, to be recorded in the body of the reflog.
1002
1003
1004Discussion[[Discussion]]
1005------------------------
1006
1007More detail on the following is available from the
1008link:user-manual.html#git-concepts[Git concepts chapter of the
1009user-manual] and linkgit:gitcore-tutorial[7].
1010
1011A Git project normally consists of a working directory with a ".git"
1012subdirectory at the top level.  The .git directory contains, among other
1013things, a compressed object database representing the complete history
1014of the project, an "index" file which links that history to the current
1015contents of the working tree, and named pointers into that history such
1016as tags and branch heads.
1017
1018The object database contains objects of three main types: blobs, which
1019hold file data; trees, which point to blobs and other trees to build up
1020directory hierarchies; and commits, which each reference a single tree
1021and some number of parent commits.
1022
1023The commit, equivalent to what other systems call a "changeset" or
1024"version", represents a step in the project's history, and each parent
1025represents an immediately preceding step.  Commits with more than one
1026parent represent merges of independent lines of development.
1027
1028All objects are named by the SHA-1 hash of their contents, normally
1029written as a string of 40 hex digits.  Such names are globally unique.
1030The entire history leading up to a commit can be vouched for by signing
1031just that commit.  A fourth object type, the tag, is provided for this
1032purpose.
1033
1034When first created, objects are stored in individual files, but for
1035efficiency may later be compressed together into "pack files".
1036
1037Named pointers called refs mark interesting points in history.  A ref
1038may contain the SHA-1 name of an object or the name of another ref.  Refs
1039with names beginning `ref/head/` contain the SHA-1 name of the most
1040recent commit (or "head") of a branch under development.  SHA-1 names of
1041tags of interest are stored under `ref/tags/`.  A special ref named
1042`HEAD` contains the name of the currently checked-out branch.
1043
1044The index file is initialized with a list of all paths and, for each
1045path, a blob object and a set of attributes.  The blob object represents
1046the contents of the file as of the head of the current branch.  The
1047attributes (last modified time, size, etc.) are taken from the
1048corresponding file in the working tree.  Subsequent changes to the
1049working tree can be found by comparing these attributes.  The index may
1050be updated with new content, and new commits may be created from the
1051content stored in the index.
1052
1053The index is also capable of storing multiple entries (called "stages")
1054for a given pathname.  These stages are used to hold the various
1055unmerged version of a file when a merge is in progress.
1056
1057FURTHER DOCUMENTATION
1058---------------------
1059
1060See the references in the "description" section to get started
1061using Git.  The following is probably more detail than necessary
1062for a first-time user.
1063
1064The link:user-manual.html#git-concepts[Git concepts chapter of the
1065user-manual] and linkgit:gitcore-tutorial[7] both provide
1066introductions to the underlying Git architecture.
1067
1068See linkgit:gitworkflows[7] for an overview of recommended workflows.
1069
1070See also the link:howto-index.html[howto] documents for some useful
1071examples.
1072
1073The internals are documented in the
1074link:technical/api-index.html[Git API documentation].
1075
1076Users migrating from CVS may also want to
1077read linkgit:gitcvs-migration[7].
1078
1079
1080Authors
1081-------
1082Git was started by Linus Torvalds, and is currently maintained by Junio
1083C Hamano. Numerous contributions have come from the Git mailing list
1084<git@vger.kernel.org>.  http://www.openhub.net/p/git/contributors/summary
1085gives you a more complete list of contributors.
1086
1087If you have a clone of git.git itself, the
1088output of linkgit:git-shortlog[1] and linkgit:git-blame[1] can show you
1089the authors for specific parts of the project.
1090
1091Reporting Bugs
1092--------------
1093
1094Report bugs to the Git mailing list <git@vger.kernel.org> where the
1095development and maintenance is primarily done.  You do not have to be
1096subscribed to the list to send a message there.
1097
1098SEE ALSO
1099--------
1100linkgit:gittutorial[7], linkgit:gittutorial-2[7],
1101linkgit:giteveryday[7], linkgit:gitcvs-migration[7],
1102linkgit:gitglossary[7], linkgit:gitcore-tutorial[7],
1103linkgit:gitcli[7], link:user-manual.html[The Git User's Manual],
1104linkgit:gitworkflows[7]
1105
1106GIT
1107---
1108Part of the linkgit:git[1] suite