How can we find all the files under a directory whose contents contain any of several strings? [duplicate]

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This question already has an answer here:



  • How to find files containing two strings in different lines

    3 answers



  • Search among the content of a large number of plain text files?

    5 answers



I was wondering how to find all the files under a directory whose contents contain any of several strings word1, word2, word3, ...?
Thanks.




awk files grep find




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marked as duplicate by Stephen Kitt, Jeff Schaller, Patrick, G-Man, meuh Jun 6 at 15:40


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.














  • you can do cd directory ; grep -rEl "pattern1|pattern2|pattern3" depending on your needs it can just do the job. works fine with gnugrep
    – francois P
    Jun 5 at 21:06











  • There are many duplicates of that question here.
    – Stéphane Chazelas
    Jun 5 at 21:07











  • @Stéphane I was looking for them too; funnily enough your own answer to one of Tim’s questions fits the bill ;-).
    – Stephen Kitt
    Jun 5 at 21:15














up vote
-3
down vote

favorite













This question already has an answer here:



  • How to find files containing two strings in different lines

    3 answers



  • Search among the content of a large number of plain text files?

    5 answers



I was wondering how to find all the files under a directory whose contents contain any of several strings word1, word2, word3, ...?
Thanks.




awk files grep find




share|improve this question











marked as duplicate by Stephen Kitt, Jeff Schaller, Patrick, G-Man, meuh Jun 6 at 15:40


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.














  • you can do cd directory ; grep -rEl "pattern1|pattern2|pattern3" depending on your needs it can just do the job. works fine with gnugrep
    – francois P
    Jun 5 at 21:06











  • There are many duplicates of that question here.
    – Stéphane Chazelas
    Jun 5 at 21:07











  • @Stéphane I was looking for them too; funnily enough your own answer to one of Tim’s questions fits the bill ;-).
    – Stephen Kitt
    Jun 5 at 21:15












up vote
-3
down vote

favorite









up vote
-3
down vote

favorite












This question already has an answer here:



  • How to find files containing two strings in different lines

    3 answers



  • Search among the content of a large number of plain text files?

    5 answers



I was wondering how to find all the files under a directory whose contents contain any of several strings word1, word2, word3, ...?
Thanks.




awk files grep find




share|improve this question












This question already has an answer here:



  • How to find files containing two strings in different lines

    3 answers



  • Search among the content of a large number of plain text files?

    5 answers



I was wondering how to find all the files under a directory whose contents contain any of several strings word1, word2, word3, ...?
Thanks.





This question already has an answer here:



  • How to find files containing two strings in different lines

    3 answers



  • Search among the content of a large number of plain text files?

    5 answers





awk files grep find





share|improve this question










share|improve this question




share|improve this question









asked Jun 5 at 21:03









Tim

22.5k61222401




22.5k61222401




marked as duplicate by Stephen Kitt, Jeff Schaller, Patrick, G-Man, meuh Jun 6 at 15:40


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.






marked as duplicate by Stephen Kitt, Jeff Schaller, Patrick, G-Man, meuh Jun 6 at 15:40


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.













  • you can do cd directory ; grep -rEl "pattern1|pattern2|pattern3" depending on your needs it can just do the job. works fine with gnugrep
    – francois P
    Jun 5 at 21:06











  • There are many duplicates of that question here.
    – Stéphane Chazelas
    Jun 5 at 21:07











  • @Stéphane I was looking for them too; funnily enough your own answer to one of Tim’s questions fits the bill ;-).
    – Stephen Kitt
    Jun 5 at 21:15
















  • you can do cd directory ; grep -rEl "pattern1|pattern2|pattern3" depending on your needs it can just do the job. works fine with gnugrep
    – francois P
    Jun 5 at 21:06











  • There are many duplicates of that question here.
    – Stéphane Chazelas
    Jun 5 at 21:07











  • @Stéphane I was looking for them too; funnily enough your own answer to one of Tim’s questions fits the bill ;-).
    – Stephen Kitt
    Jun 5 at 21:15















you can do cd directory ; grep -rEl "pattern1|pattern2|pattern3" depending on your needs it can just do the job. works fine with gnugrep
– francois P
Jun 5 at 21:06





you can do cd directory ; grep -rEl "pattern1|pattern2|pattern3" depending on your needs it can just do the job. works fine with gnugrep
– francois P
Jun 5 at 21:06













There are many duplicates of that question here.
– Stéphane Chazelas
Jun 5 at 21:07





There are many duplicates of that question here.
– Stéphane Chazelas
Jun 5 at 21:07













@Stéphane I was looking for them too; funnily enough your own answer to one of Tim’s questions fits the bill ;-).
– Stephen Kitt
Jun 5 at 21:15




@Stéphane I was looking for them too; funnily enough your own answer to one of Tim’s questions fits the bill ;-).
– Stephen Kitt
Jun 5 at 21:15










1 Answer
1






active

oldest

votes

















up vote
3
down vote



accepted










Use grep’s recursive search with multiple patterns:



grep -r -F -e word1 -e word2 -e word3


If you have many words to search for, store them in a file, one per line, and give that to grep:



grep -r -F -f patternfile


Add -l in both cases if you’re only interested in the files’ names, -R (instead of -r) if you want to dereference symlinks as you go down directory tree.



How to grep thousands of files in a directory for hundreds of strings in a file has tips for doing this over large numbers of files with large numbers of patterns.






share|improve this answer























  • doing this way can make huge output when many patterns appear in many files on many lines each ... add -l option will only display the filenames to avoid that :)
    – francois P
    Jun 5 at 21:10







  • 1




    Indeed, thanks @francoisP!
    – Stephen Kitt
    Jun 5 at 21:13










  • Thanks. What does -F mean here?
    – Tim
    Jun 6 at 0:01











  • Which one is better, your command using -e, or grep -rEl "pattern1|pattern2|pattern3" ?
    – Tim
    Jun 6 at 3:02











  • -F tells grep to treat the patterns as fixed strings rather than regular expressions. It is often significantly faster to use this; in my tests, searching for two patterns in 36,088 files occupying 6.3GiB (all in cache), the grep -rFl -e ... variant is 10× faster than the grep -rEl ... variant.
    – Stephen Kitt
    Jun 6 at 9:14


















1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
3
down vote



accepted










Use grep’s recursive search with multiple patterns:



grep -r -F -e word1 -e word2 -e word3


If you have many words to search for, store them in a file, one per line, and give that to grep:



grep -r -F -f patternfile


Add -l in both cases if you’re only interested in the files’ names, -R (instead of -r) if you want to dereference symlinks as you go down directory tree.



How to grep thousands of files in a directory for hundreds of strings in a file has tips for doing this over large numbers of files with large numbers of patterns.






share|improve this answer























  • doing this way can make huge output when many patterns appear in many files on many lines each ... add -l option will only display the filenames to avoid that :)
    – francois P
    Jun 5 at 21:10







  • 1




    Indeed, thanks @francoisP!
    – Stephen Kitt
    Jun 5 at 21:13










  • Thanks. What does -F mean here?
    – Tim
    Jun 6 at 0:01











  • Which one is better, your command using -e, or grep -rEl "pattern1|pattern2|pattern3" ?
    – Tim
    Jun 6 at 3:02











  • -F tells grep to treat the patterns as fixed strings rather than regular expressions. It is often significantly faster to use this; in my tests, searching for two patterns in 36,088 files occupying 6.3GiB (all in cache), the grep -rFl -e ... variant is 10× faster than the grep -rEl ... variant.
    – Stephen Kitt
    Jun 6 at 9:14















up vote
3
down vote



accepted










Use grep’s recursive search with multiple patterns:



grep -r -F -e word1 -e word2 -e word3


If you have many words to search for, store them in a file, one per line, and give that to grep:



grep -r -F -f patternfile


Add -l in both cases if you’re only interested in the files’ names, -R (instead of -r) if you want to dereference symlinks as you go down directory tree.



How to grep thousands of files in a directory for hundreds of strings in a file has tips for doing this over large numbers of files with large numbers of patterns.






share|improve this answer























  • doing this way can make huge output when many patterns appear in many files on many lines each ... add -l option will only display the filenames to avoid that :)
    – francois P
    Jun 5 at 21:10







  • 1




    Indeed, thanks @francoisP!
    – Stephen Kitt
    Jun 5 at 21:13










  • Thanks. What does -F mean here?
    – Tim
    Jun 6 at 0:01











  • Which one is better, your command using -e, or grep -rEl "pattern1|pattern2|pattern3" ?
    – Tim
    Jun 6 at 3:02











  • -F tells grep to treat the patterns as fixed strings rather than regular expressions. It is often significantly faster to use this; in my tests, searching for two patterns in 36,088 files occupying 6.3GiB (all in cache), the grep -rFl -e ... variant is 10× faster than the grep -rEl ... variant.
    – Stephen Kitt
    Jun 6 at 9:14













up vote
3
down vote



accepted







up vote
3
down vote



accepted






Use grep’s recursive search with multiple patterns:



grep -r -F -e word1 -e word2 -e word3


If you have many words to search for, store them in a file, one per line, and give that to grep:



grep -r -F -f patternfile


Add -l in both cases if you’re only interested in the files’ names, -R (instead of -r) if you want to dereference symlinks as you go down directory tree.



How to grep thousands of files in a directory for hundreds of strings in a file has tips for doing this over large numbers of files with large numbers of patterns.






share|improve this answer















Use grep’s recursive search with multiple patterns:



grep -r -F -e word1 -e word2 -e word3


If you have many words to search for, store them in a file, one per line, and give that to grep:



grep -r -F -f patternfile


Add -l in both cases if you’re only interested in the files’ names, -R (instead of -r) if you want to dereference symlinks as you go down directory tree.



How to grep thousands of files in a directory for hundreds of strings in a file has tips for doing this over large numbers of files with large numbers of patterns.







share|improve this answer















share|improve this answer



share|improve this answer








edited Jun 5 at 21:19


























answered Jun 5 at 21:07









Stephen Kitt

140k22302363




140k22302363











  • doing this way can make huge output when many patterns appear in many files on many lines each ... add -l option will only display the filenames to avoid that :)
    – francois P
    Jun 5 at 21:10







  • 1




    Indeed, thanks @francoisP!
    – Stephen Kitt
    Jun 5 at 21:13










  • Thanks. What does -F mean here?
    – Tim
    Jun 6 at 0:01











  • Which one is better, your command using -e, or grep -rEl "pattern1|pattern2|pattern3" ?
    – Tim
    Jun 6 at 3:02











  • -F tells grep to treat the patterns as fixed strings rather than regular expressions. It is often significantly faster to use this; in my tests, searching for two patterns in 36,088 files occupying 6.3GiB (all in cache), the grep -rFl -e ... variant is 10× faster than the grep -rEl ... variant.
    – Stephen Kitt
    Jun 6 at 9:14

















  • doing this way can make huge output when many patterns appear in many files on many lines each ... add -l option will only display the filenames to avoid that :)
    – francois P
    Jun 5 at 21:10







  • 1




    Indeed, thanks @francoisP!
    – Stephen Kitt
    Jun 5 at 21:13










  • Thanks. What does -F mean here?
    – Tim
    Jun 6 at 0:01











  • Which one is better, your command using -e, or grep -rEl "pattern1|pattern2|pattern3" ?
    – Tim
    Jun 6 at 3:02











  • -F tells grep to treat the patterns as fixed strings rather than regular expressions. It is often significantly faster to use this; in my tests, searching for two patterns in 36,088 files occupying 6.3GiB (all in cache), the grep -rFl -e ... variant is 10× faster than the grep -rEl ... variant.
    – Stephen Kitt
    Jun 6 at 9:14
















doing this way can make huge output when many patterns appear in many files on many lines each ... add -l option will only display the filenames to avoid that :)
– francois P
Jun 5 at 21:10





doing this way can make huge output when many patterns appear in many files on many lines each ... add -l option will only display the filenames to avoid that :)
– francois P
Jun 5 at 21:10





1




1




Indeed, thanks @francoisP!
– Stephen Kitt
Jun 5 at 21:13




Indeed, thanks @francoisP!
– Stephen Kitt
Jun 5 at 21:13












Thanks. What does -F mean here?
– Tim
Jun 6 at 0:01





Thanks. What does -F mean here?
– Tim
Jun 6 at 0:01













Which one is better, your command using -e, or grep -rEl "pattern1|pattern2|pattern3" ?
– Tim
Jun 6 at 3:02





Which one is better, your command using -e, or grep -rEl "pattern1|pattern2|pattern3" ?
– Tim
Jun 6 at 3:02













-F tells grep to treat the patterns as fixed strings rather than regular expressions. It is often significantly faster to use this; in my tests, searching for two patterns in 36,088 files occupying 6.3GiB (all in cache), the grep -rFl -e ... variant is 10× faster than the grep -rEl ... variant.
– Stephen Kitt
Jun 6 at 9:14





-F tells grep to treat the patterns as fixed strings rather than regular expressions. It is often significantly faster to use this; in my tests, searching for two patterns in 36,088 files occupying 6.3GiB (all in cache), the grep -rFl -e ... variant is 10× faster than the grep -rEl ... variant.
– Stephen Kitt
Jun 6 at 9:14



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