Problem with egrep and cat

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04-27-2013

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Quote:

Originally Posted by yzy9951

Thank you very much. After mount the partition, I found the file names now using grep -iR

Code:

grep -iR -f 1.txt /mnt

Note that if 1.txt contains extended regular expression (rather than basic regular expressions), you should still use egrep (like you did in your original pipeline) rather than grep.

If 1.txt only contains strings to be matched (rather than regular expressions), you should use fgrep instead of grep. If you're searching for fixed strings, fgrep will be MUCH faster than grep or egrep when you're examining all of the files in a file system containing lots of files.

Don Cragun

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