Difference between revisions of "Patch"
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==DESCRIPTION== | ==DESCRIPTION== | ||
| − | + | '''patch''' takes a patch file ''patchfile'' containing a difference listing produced by the '''diff''' program and applies those differences to one or more original files, producing patched versions. Normally the patched versions are put in place of the originals. Backups can be made; see the '''-b''' or '''--backup option'''. The names of the files to be patched are usually taken from the patch file, but if there’s just one file to be patched it can specified on the command line as ''originalfile''. | |
Upon startup, patch attempts to determine the type of the diff listing, unless overruled by a '''-c''' ('''--context'''), '''-e''' ('''--ed'''), '''-n''' ('''--normal'''), or '''-u''' (--unified) option. Context diffs (old-style, new-style, and unified) and normal diffs are applied by the '''patch''' program itself, while '''ed''' diffs are simply fed to the '''ed'''(1) editor via a pipe. | Upon startup, patch attempts to determine the type of the diff listing, unless overruled by a '''-c''' ('''--context'''), '''-e''' ('''--ed'''), '''-n''' ('''--normal'''), or '''-u''' (--unified) option. Context diffs (old-style, new-style, and unified) and normal diffs are applied by the '''patch''' program itself, while '''ed''' diffs are simply fed to the '''ed'''(1) editor via a pipe. | ||
Revision as of 13:54, 20 February 2009
NAME
patch - apply a diff file to an original
SYNOPSIS
patch [options] [originalfile [patchfile]]
but usually just
patch -pnum <patchfile
DESCRIPTION
patch takes a patch file patchfile containing a difference listing produced by the diff program and applies those differences to one or more original files, producing patched versions. Normally the patched versions are put in place of the originals. Backups can be made; see the -b or --backup option. The names of the files to be patched are usually taken from the patch file, but if there’s just one file to be patched it can specified on the command line as originalfile.
Upon startup, patch attempts to determine the type of the diff listing, unless overruled by a -c (--context), -e (--ed), -n (--normal), or -u (--unified) option. Context diffs (old-style, new-style, and unified) and normal diffs are applied by the patch program itself, while ed diffs are simply fed to the ed(1) editor via a pipe.