UNIX: excluding patterns, contained in a file, from another file with grep

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I have a txt file that contains the patterns I would like to exclude from a file. Is there a way to chain grep -f and grep -v?

Thanks

edited Jun 9 '16 at 21:24

sam

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asked Jun 9 '16 at 21:11

Nicholas Hayden

355

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up vote
2
down vote

favorite

I have a txt file that contains the patterns I would like to exclude from a file. Is there a way to chain grep -f and grep -v?

Thanks

edited Jun 9 '16 at 21:24

sam

12.3k31326

asked Jun 9 '16 at 21:11

Nicholas Hayden

355

add a commentÂ |Â

up vote
2
down vote

favorite

I have a txt file that contains the patterns I would like to exclude from a file. Is there a way to chain grep -f and grep -v?

Thanks

edited Jun 9 '16 at 21:24

sam

12.3k31326

asked Jun 9 '16 at 21:11

Nicholas Hayden

355

I have a txt file that contains the patterns I would like to exclude from a file. Is there a way to chain grep -f and grep -v?

Thanks

edited Jun 9 '16 at 21:24

sam

12.3k31326

asked Jun 9 '16 at 21:11

Nicholas Hayden

355

edited Jun 9 '16 at 21:24

sam

12.3k31326

edited Jun 9 '16 at 21:24

sam

12.3k31326

edited Jun 9 '16 at 21:24

sam

12.3k31326

asked Jun 9 '16 at 21:11

Nicholas Hayden

355

asked Jun 9 '16 at 21:11

Nicholas Hayden

355

asked Jun 9 '16 at 21:11

Nicholas Hayden

355

add a commentÂ |Â

1 Answer
1

active

oldest

votes

up vote
4
down vote

You can use the options together like:

grep -vf exclude.txt file.txt

Example:

$ cat exclude.txt 
3

$ cat file.txt
1
3
4
1
4
3
1
2

$ grep -vf exclude.txt file.txt 
1
4
1
4
1
2

answered Jun 9 '16 at 21:13

heemayl

33.1k36897

Thanks! However, grep does not seem to filtering based on exclude.txt - Would there be a problem with the exclude.txt?
â€“Â Nicholas Hayden
Jun 9 '16 at 21:19

@NicholasHayden Thats the way to go. If you have any problem then it must be with the patterns.
â€“Â heemayl
Jun 9 '16 at 21:22

1

@NicholasHayden, you might want to check out the -x and -F options in man grep.
â€“Â Wildcard
Jun 9 '16 at 21:39

add a commentÂ |Â

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1 Answer
1

active

oldest

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1 Answer
1

active

oldest

votes

up vote
4
down vote

You can use the options together like:

grep -vf exclude.txt file.txt

Example:

$ cat exclude.txt 
3

$ cat file.txt
1
3
4
1
4
3
1
2

$ grep -vf exclude.txt file.txt 
1
4
1
4
1
2

answered Jun 9 '16 at 21:13

heemayl

33.1k36897

Thanks! However, grep does not seem to filtering based on exclude.txt - Would there be a problem with the exclude.txt?
â€“Â Nicholas Hayden
Jun 9 '16 at 21:19

@NicholasHayden Thats the way to go. If you have any problem then it must be with the patterns.
â€“Â heemayl
Jun 9 '16 at 21:22

1

@NicholasHayden, you might want to check out the -x and -F options in man grep.
â€“Â Wildcard
Jun 9 '16 at 21:39

add a commentÂ |Â

up vote
4
down vote

You can use the options together like:

grep -vf exclude.txt file.txt

Example:

$ cat exclude.txt 
3

$ cat file.txt
1
3
4
1
4
3
1
2

$ grep -vf exclude.txt file.txt 
1
4
1
4
1
2

answered Jun 9 '16 at 21:13

heemayl

33.1k36897

Thanks! However, grep does not seem to filtering based on exclude.txt - Would there be a problem with the exclude.txt?
â€“Â Nicholas Hayden
Jun 9 '16 at 21:19

@NicholasHayden Thats the way to go. If you have any problem then it must be with the patterns.
â€“Â heemayl
Jun 9 '16 at 21:22

1

@NicholasHayden, you might want to check out the -x and -F options in man grep.
â€“Â Wildcard
Jun 9 '16 at 21:39

add a commentÂ |Â

up vote
4
down vote

You can use the options together like:

grep -vf exclude.txt file.txt

Example:

$ cat exclude.txt 
3

$ cat file.txt
1
3
4
1
4
3
1
2

$ grep -vf exclude.txt file.txt 
1
4
1
4
1
2

answered Jun 9 '16 at 21:13

heemayl

33.1k36897

You can use the options together like:

grep -vf exclude.txt file.txt

Example:

$ cat exclude.txt 
3

$ cat file.txt
1
3
4
1
4
3
1
2

$ grep -vf exclude.txt file.txt 
1
4
1
4
1
2

answered Jun 9 '16 at 21:13

heemayl

33.1k36897

answered Jun 9 '16 at 21:13

heemayl

33.1k36897

answered Jun 9 '16 at 21:13

heemayl

33.1k36897

answered Jun 9 '16 at 21:13

heemayl

33.1k36897

Thanks! However, grep does not seem to filtering based on exclude.txt - Would there be a problem with the exclude.txt?
â€“Â Nicholas Hayden
Jun 9 '16 at 21:19

@NicholasHayden Thats the way to go. If you have any problem then it must be with the patterns.
â€“Â heemayl
Jun 9 '16 at 21:22

1

@NicholasHayden, you might want to check out the -x and -F options in man grep.
â€“Â Wildcard
Jun 9 '16 at 21:39

add a commentÂ |Â

Thanks! However, grep does not seem to filtering based on exclude.txt - Would there be a problem with the exclude.txt?
â€“Â Nicholas Hayden
Jun 9 '16 at 21:19

@NicholasHayden Thats the way to go. If you have any problem then it must be with the patterns.
â€“Â heemayl
Jun 9 '16 at 21:22

1

@NicholasHayden, you might want to check out the -x and -F options in man grep.
â€“Â Wildcard
Jun 9 '16 at 21:39

Thanks! However, grep does not seem to filtering based on exclude.txt - Would there be a problem with the exclude.txt?
â€“Â Nicholas Hayden
Jun 9 '16 at 21:19

@NicholasHayden Thats the way to go. If you have any problem then it must be with the patterns.
â€“Â heemayl
Jun 9 '16 at 21:22

@NicholasHayden, you might want to check out the -x and -F options in man grep.
â€“Â Wildcard
Jun 9 '16 at 21:39

add a commentÂ |Â

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