применить файл сравнения к оригиналу (apply a diff file to an original)
Окружение (Environment)
PATCH_GET
This specifies whether patch gets missing or read-only files
from RCS, ClearCase, Perforce, or SCCS by default; see the -g
or --get option.
POSIXLY_CORRECT
If set, patch conforms more strictly to the POSIX standard by
default: see the --posix option.
QUOTING_STYLE
Default value of the --quoting-style option.
SIMPLE_BACKUP_SUFFIX
Extension to use for simple backup file names instead of
.orig.
TMPDIR, TMP, TEMP
Directory to put temporary files in; patch uses the first
environment variable in this list that is set. If none are
set, the default is system-dependent; it is normally /tmp on
Unix hosts.
VERSION_CONTROL or PATCH_VERSION_CONTROL
Selects version control style; see the -v or --version-control
option.
