linux 兩個文件夾打patch

需求一,將一個文件的更新運用到另外一個文件: python step 1:   spa diff -u old_file.txt new_file.txt > file.diffdiff -u old_file.txt new_file.txt > file.diff step 2: patch -p0 < file.diffpatch -p0 < file.diff 這樣的話old_file.t

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