查找不在列表中的文件

Question

我有一个文件列表file.lst.现在我想查找目录dir中超过7天的所有文件,除了file.lst文件中的文件.如何修改find​​命令或file.lst从结果中删除所有条目？

例:

file.lst:

a
b
c

执行:

find -mtime +7 -print > found.lst

found.lst:

a
d
e

所以我的期望是:

d
e

Answer 1

管理您的find命令grep -Fxvf:

find -mtime +7 -print | grep -Fxvf file.lst

标志意味着什么:

-F, --fixed-strings
              Interpret PATTERN as a list of fixed strings, separated by newlines, any of which is to be matched.    
-x, --line-regexp
              Select only those matches that exactly match the whole line.
-v, --invert-match
              Invert the sense of matching, to select non-matching lines.
-f FILE, --file=FILE
              Obtain patterns from FILE, one per line.  The empty file contains zero patterns, and therefore matches nothing.