DIFF 与 PATCH命令使用

diff -uprN a/ b/ >c
patch -p1 < ../patchname

patch -p0 < ../../pd368_codec_tf_boot.patch

 -p NUM  --strip=NUM  Strip NUM leading components from file names.

补充：

单个文件

diff –uN from-file to-file >to-file.patch

patch –p0 < to-file.patch

patch –RE –p0 < to-file.patch

 

多个文件

diff –uNr from-docu to-docu >to-docu.patch
to-file.patch拷贝到to-docu目录总让后进入to-docu目录

patch –p1 < to-docu.patch

patch –R –p1