generated at
patch - テキストファイルにパッチ処理を行うUNIXコマンド
パッチ
diff
rsync
xdelta
Quilt (software)
List of Unix commands
IBM Mainframe utility IEBUPDTE a mainframe patch program, created about 20 years earlier (circa ~1964).

https://ja.wikipedia.org/wiki/Patch
https://en.wikipedia.org/wiki/Patch_(Unix)
https://en.wikipedia.org/wiki/Patch_(computing)