Removing lines from file matching 2 strings
Clash Royale CLAN TAG#URR8PPP
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I am trying to remove lines in a file that contain 2 strings.
I am using:
perl -i.tmp -ne "print unless /$STRING_A/ and /$STRING_B/" /foo/bar/file.txt
The result is that all lines from the file containing $STRING_A are deleted regardless if $STRING_B is also in the same line.
What is the problem here? How can I fix this?
regular-expression perl
asked Oct 20 '17 at 8:21
Jim
2,771113256
 |Â
show 2 more comments
up vote
0
down vote
favorite
I am trying to remove lines in a file that contain 2 strings.
I am using:
perl -i.tmp -ne "print unless /$STRING_A/ and /$STRING_B/" /foo/bar/file.txt
The result is that all lines from the file containing $STRING_A are deleted regardless if $STRING_B is also in the same line.
What is the problem here? How can I fix this?
regular-expression perl
asked Oct 20 '17 at 8:21
Jim
2,771113256
@Inian:I want to delete the lines that contain both these strings in the line
– Jim
Oct 20 '17 at 8:28
Have you consider adding parentheses?andhas a very low priority.
– SatÅ Katsura
Oct 20 '17 at 8:33
@SatÃ…ÂKatsura: Where should the parenthesis be?
– Jim
Oct 20 '17 at 8:36
3
perl -lne 'print unless (/foo/o and /bar/o)'
– SatÅ Katsura
Oct 20 '17 at 8:38
1
I tested thisperlcommand with and without parenthesis and it worked just fine. @Jim, could you provide an example where it didn't work?
– cesarv
Oct 20 '17 at 9:52
 |Â
show 2 more comments
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I am trying to remove lines in a file that contain 2 strings.
I am using:
perl -i.tmp -ne "print unless /$STRING_A/ and /$STRING_B/" /foo/bar/file.txt
The result is that all lines from the file containing $STRING_A are deleted regardless if $STRING_B is also in the same line.
What is the problem here? How can I fix this?
regular-expression perl
asked Oct 20 '17 at 8:21
Jim
2,771113256
I am trying to remove lines in a file that contain 2 strings.
I am using:
perl -i.tmp -ne "print unless /$STRING_A/ and /$STRING_B/" /foo/bar/file.txt
The result is that all lines from the file containing $STRING_A are deleted regardless if $STRING_B is also in the same line.
What is the problem here? How can I fix this?
regular-expression perl
asked Oct 20 '17 at 8:21
Jim
2,771113256
asked Oct 20 '17 at 8:21
Jim
2,771113256
asked Oct 20 '17 at 8:21
Jim
2,771113256
asked Oct 20 '17 at 8:21
Jim
2,771113256
2,771113256
@Inian:I want to delete the lines that contain both these strings in the line
– Jim
Oct 20 '17 at 8:28
Have you consider adding parentheses?andhas a very low priority.
– SatÅ Katsura
Oct 20 '17 at 8:33
@SatÃ…ÂKatsura: Where should the parenthesis be?
– Jim
Oct 20 '17 at 8:36
3
perl -lne 'print unless (/foo/o and /bar/o)'
– SatÅ Katsura
Oct 20 '17 at 8:38
1
I tested thisperlcommand with and without parenthesis and it worked just fine. @Jim, could you provide an example where it didn't work?
– cesarv
Oct 20 '17 at 9:52
 |Â
show 2 more comments
@Inian:I want to delete the lines that contain both these strings in the line
– Jim
Oct 20 '17 at 8:28
Have you consider adding parentheses?andhas a very low priority.
– SatÅ Katsura
Oct 20 '17 at 8:33
@SatÃ…ÂKatsura: Where should the parenthesis be?
– Jim
Oct 20 '17 at 8:36
3
perl -lne 'print unless (/foo/o and /bar/o)'
– SatÅ Katsura
Oct 20 '17 at 8:38
1
I tested thisperlcommand with and without parenthesis and it worked just fine. @Jim, could you provide an example where it didn't work?
– cesarv
Oct 20 '17 at 9:52
@Inian:I want to delete the lines that contain both these strings in the line
– Jim
Oct 20 '17 at 8:28
@Inian:I want to delete the lines that contain both these strings in the line
– Jim
Oct 20 '17 at 8:28
Have you consider adding parentheses?
and has a very low priority.– SatÅ Katsura
Oct 20 '17 at 8:33
Have you consider adding parentheses?
and has a very low priority.– SatÅ Katsura
Oct 20 '17 at 8:33
@SatÃ…ÂKatsura: Where should the parenthesis be?
– Jim
Oct 20 '17 at 8:36
@SatÃ…ÂKatsura: Where should the parenthesis be?
– Jim
Oct 20 '17 at 8:36
3
3
perl -lne 'print unless (/foo/o and /bar/o)'– SatÅ Katsura
Oct 20 '17 at 8:38
perl -lne 'print unless (/foo/o and /bar/o)'– SatÅ Katsura
Oct 20 '17 at 8:38
1
1
I tested this
perl command with and without parenthesis and it worked just fine. @Jim, could you provide an example where it didn't work?– cesarv
Oct 20 '17 at 9:52
I tested this
perl command with and without parenthesis and it worked just fine. @Jim, could you provide an example where it didn't work?– cesarv
Oct 20 '17 at 9:52
 |Â
show 2 more comments
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@Inian:I want to delete the lines that contain both these strings in the line
– Jim
Oct 20 '17 at 8:28
Have you consider adding parentheses?
andhas a very low priority.– SatÅ Katsura
Oct 20 '17 at 8:33
@SatÃ…ÂKatsura: Where should the parenthesis be?
– Jim
Oct 20 '17 at 8:36
3
perl -lne 'print unless (/foo/o and /bar/o)'– SatÅ Katsura
Oct 20 '17 at 8:38
1
I tested this
perlcommand with and without parenthesis and it worked just fine. @Jim, could you provide an example where it didn't work?– cesarv
Oct 20 '17 at 9:52