patch

Runs on:

QNX OS

Options:

-d dir

Modify files in the specified directory.

--dry-run

Don't change files, just confirm if the patch applies.

-F fuzz

Input patch file (default is stdin).

-i patch

Input patch file (default is stdin).

-l

("el") Loose match (ignores whitespace).

-p depth

Number of forward slashes (/) to strip from start of filepaths (default all).

-R

Reverse patch.

-s

Be silent except for errors.

-u

Ignore (only handles "unified" diffs).

file [patch]

The pathname of a file to apply as a unified diff.

Description:

The patch utility prints unified diffs (old and new text presented immediately adjacent) and only modifies a file when all hunks (sequences of lines that differ) to that file apply. The patch utility prints failed hunks to stderr and exits with nonzero status if any hunks fail.

A file compared against /dev/null (or with a date less than or equal to the Epoch (00:00 January 1, 1970)) is created or deleted as appropriate.

This utility is provided as part of the toybox package. For information on how to enable it, see toybox.

Contributing author:

Rob Landley and the toybox project (see https://landley.net/toybox/).