Use diff to generate patches and patch patches in Linux

1, using diff to generate patches;

Diff is the file comparison command under Linux, the parameters are not said here, direct man a bit on the line, not only can compare files, can also compare two directories, and can be different to generate patch files, in fact, is a patch of command. Here's how to use it:

Diff-rnu a B > Diff.patch

Where a is an old directory or file, B is a recently modified directory or file, and a patch file is generated.

2, use patch patching;

The parameters of the patch command are described in the Man manual, and patches are used to patch the other a directories as follows:

Patch-p0 < Diff.patch

Use diff to generate patches and patch patches in Linux