Exclude a single file from grep
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From: Melvin on 11 May 2010 00:38 Hi, Is there a way in which a particular file can be excluded from grep operations. Say, a directory has 15 files/directories and I want to using => grep -r "pattern" * Can I exclude a single file from this Thanks Unix baby
From: Stephane CHAZELAS on 11 May 2010 01:18 2010-05-10, 21:38(-07), Melvin: > Hi, > > Is there a way in which a particular file can be excluded from grep > operations. Say, a directory has 15 files/directories and I want to > using => grep -r "pattern" * > Can I exclude a single file from this [...] find . -type f ! -path ./this/file -exec \ grep pattern /dev/null {} + Or with zsh setopt extendedglob grep pattern **/*~this/file(D.) (D is to include hidden (dot) files, . is to only include regular files). -- Stéphane
From: Ben Finney on 11 May 2010 01:26 Melvin <whereismelvin(a)gmail.com> writes: > Is there a way in which a particular file can be excluded from grep > operations. Say, a directory has 15 files/directories and I want to > using => grep -r "pattern" * > Can I exclude a single file from this Much simpler to construct the list of files how you want, and give that list to 'grep'. List each file name one per line: find . List files, one per line, found whose path exactly matches one name: find . -name './foo/bar/unwantedfile' List files, one per line, whose path does *not* match one name: find . -not -name './foo/bar/unwantedfile' Use the output of the above command as part of the grep command line: grep "pattern" $(find . -not -name './foo/bar/unwantedfile') Alternatively, if the list of filenames will be quite long, use 'xargs' to invoke 'grep' on smaller chunks of the list: find . -not -name './foo/bar/unwantedfile' | xargs grep "pattern" If you have files whose names may contain characters special in the shell, you'll need to delimit the list with null characters instead: find . -not -name './foo/bar/unwantedfile' -print0 | xargs --null grep "pattern" In fact, when making such a command-line, one should default to allowing for filenames containing special characters unless there is a good reason not to do so. -- \ “When I get new information, I change my position. What, sir, | `\ do you do with new information?” —John Maynard Keynes | _o__) | Ben Finney
From: Ben Finney on 11 May 2010 01:56 Ben Finney <ben+unix(a)benfinney.id.au> writes: > find . -name './foo/bar/unwantedfile' > find . -not -name './foo/bar/unwantedfile' My mistake; the '-name' option (matching only the basename of the entry) in all these command won't work, it needs to be '-path'. -- \ “I have never imputed to Nature a purpose or a goal, or | `\ anything that could be understood as anthropomorphic.” —Albert | _o__) Einstein, unsent letter, 1955 | Ben Finney
From: pk on 11 May 2010 04:02
Melvin wrote: > Hi, > > Is there a way in which a particular file can be excluded from grep > operations. Say, a directory has 15 files/directories and I want to > using => grep -r "pattern" * > Can I exclude a single file from this IIRC GNU grep has some --exclude options that should do that. |