patch

Patch a file (or files) with a diff file. Note that diff files should be generated by the diff command. More information: https://manned.org/patch.

• Apply a patch using a diff file (filenames must be included in the diff file):

patch < patch.diff

• Apply a patch to a specific file:

patch path/to/file < patch.diff

• Patch a file writing the result to a different file:

patch path/to/input_file -o path/to/output_file < patch.diff

• Apply a patch to the current directory:

patch -p1 < patch.diff

• Apply the reverse of a patch:

patch -R < patch.diff