I'm using grep in a shell and I was wondering:
Can I grep a file and then delete all files that contain what it returns?
So instead of grep 'blah' * and I have 50 files that have blah in it and I would have to delete all 50 manually, how would I just delete them all in one fell swoop? (3 Replies)
I have 2 files, in one file is a list of hex numbers, the other is what i need matched. Is it possible for me to specify to grep the list and have it go through the second file for each item in the list in the first file to match the lines? so this is like a cross-refference. (16 Replies)
when using grep -f file1 file2
if you have multiple entries in the pattern file1 that are the same will it take the line out of file2 that matches file1 each time it comes up? if not by default can you set a flag to make this possible? or another way - can you get it to search for and match the... (8 Replies)
Hi ,
I am doing invert grep using -v but the string contain "/" which break the grep command and it do not skip the lines with "/" on it.
Diffu.txt
========
1159c1159
< <td align="right" valign="middle" class="paddingRight2px" id="featureListItemChannelButton7466">
---
> <td... (1 Reply)
Hi ,
I am doing invert grep using -v but the string contain "/" which break the grep command and it do not skip the lines with "/" on it.
Diffu.txt
========
1159c1159
< <td align="right" valign="middle" class="paddingRight2px" id="featureListItemChannelButton7466">
---
> <td... (6 Replies)
I wanted to search a for all lines containing ERROR but not errors that contained the word "foo" (for example). The only way I could figure out to do it was:
grep ERROR myfile.log | grep -v foo
is there a way to do this with one grep command instead of two? One grep is faster than two,... (4 Replies)
Instead of using the following command
#dmesg | grep -v sendmail | grep -v xntpd
How can I use just one grep -v and give both arguments.
Please suggest
thanks (4 Replies)
I am grepping a log file but want to filter out more than one thing..
tail -f log | grep -vi "FTP session"
How can I add more filters to this string?
Can I do
tail -f log | grep -vi "FTP session" | grep -vi "xxx"
or is there a better method.
Thanks
Use code tags please, ty. (7 Replies)
Hello everyone,
My main objective is to search for text within a file, namely a block of text where each line ends with a backslash "\".
However, the block must begin with a keyword, like "loginstring".
Here is an example of a file that contains a block:
###############
loginstring \... (2 Replies)
My grep returns a row of data like this:
75=20130130;60=074338;61=985;511=55473883;452=115439;62=196;267=1;
Is there a way for the grep to only return 60="something" and 511="something" ?
Thanks in advance. (10 Replies)
Perl::Critic::Policy::ValuesAndExpressions::ProhibitQuotPerl::Critic::Policy::ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters(3)NAME
Perl::Critic::Policy::ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters - Don't use quotes ("'", """, "`") as delimiters
for the quote-like operators.
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
With the obvious exception of using single-quotes to prevent interpolation, using quotes with the quote-like operators kind of defeats the
purpose of them and produces obfuscated code, causing problems for future maintainers and their editors/IDEs.
$x = q"q"; #not ok
$x = q'q'; #not ok
$x = q`q`; #not ok
$x = qq"q"; #not ok
$x = qr"r"; #not ok
$x = qw"w"; #not ok
$x = qx`date`; #not ok
$x =~ m"m"; #not ok
$x =~ s"s"x"; #not ok
$x =~ tr"t"r"; #not ok
$x =~ y"x"y"; #not ok
$x =~ m'$x'; #ok
$x =~ s'$x'y'; #ok
$x = qr'$x'm; #ok
$x = qx'finger foo@bar'; #ok
CONFIGURATION
This policy has three options: "single_quote_allowed_operators", "double_quote_allowed_operators", and "back_quote_allowed_operators",
which control which operators are allowed to use each of "'", """, "`" as delimiters, respectively.
The values allowed for these options are a whitespace delimited selection of the "m", "q", "qq", "qr", "qw", "qx", "s", "tr", and "y"
operators.
By default, double quotes and back quotes (backticks) are not allowed as delimiters for any operators and single quotes are allowed as
delimiters for the "m", "qr", "qx", and "s" operators. These defaults are equivalent to having the following in your .perlcriticrc:
[ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters]
single_quote_allowed_operators = m s qr qx
double_quote_allowed_operators =
back_quote_allowed_operators =
SUGGESTED BY
Michael Schwern
AUTHOR
Elliot Shank "<perl@galumph.com>"
COPYRIGHT
Copyright (c) 2007-2011 Elliot Shank.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license
can be found in the LICENSE file included with this module.
perl v5.16.3Perl::Critic::Policy::ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters(3)