You must capture a digit that is followed by a space. Because all the matched part is substituted, you must put it back with \1 and \2 that refer to the 1st and 2nd \(capture group\).
Because I put the Oct in a group, you can easily generalize it, to match all 3-letter month names: \([A-Z][a-z][a-z]\)
This User Gave Thanks to MadeInGermany For This Post:
Hi,
I have a file name, for which I want to strip out the first bit and leave the rest...
So I want to take the file name .lockfile-filename.10001 ,strip it and have only filename.10001 ...
Thanking you all inadvance,
Zak (6 Replies)
Hello,
if I've a list of number
23
34
56
78
how I can place a sequence of ordinated number in a boundary column so
1 23
2 34
3 56
4 78
Thanks in advance! (3 Replies)
Hi All,
I want to read one number from the file.
Only one number will be there in the file.
then i have to increment the number in my script and put it back in the same file.
Is it possible?
Can anybody help me?
Thanks,
Vinay (6 Replies)
Hello
How do i check that correct input files are used while using AWk and SED for file manipulation?
e.g
awk '/bin/ {print $0 }' shell.txt
sed 's/hp/samsung/' printers.txt
how do i ensure that the correct input files I am working with are used? (5 Replies)
I have large number of data files, close to 300 files, lets say all files are same kind and have extension .dat , each file have mulitple lines in it.
There is a unique line in each file containing string 'SERVER'. Right after this line there is another line which contain a string 'DIGIT=0',... (4 Replies)
Hi,
I would really appreciate some help, I couldn't nail my problem:
I would like to create some setter and getter functions to make my life easier.
my sample file contains:
keyword - some tabs - value - semicolon
number 12.1;
float .3;
double 12;
real 12.2324;
stuff .234;
decimal... (5 Replies)
I have a comma separated file containing numbers, I would like to read the file and divide each number by 1024 and create an output file.
Input file :
50312.00,3434.05, ,3433.34,124344.00,434343.00, , ,
Output file:
49.13,3.35,3.35,0,12.05,424.16,0,0
Please click this link: How to... (2 Replies)
I am trying to count the number of records from different files using grep, and then place the result in a separate variable for each file, so at the end of my shell script, I can sum all the variables and check if the number of records are equal to what I was expecting. It is weird butwc -ldoes... (2 Replies)
Hello, I have a large flat file where i need to change data in columns 131-133 based on what is in columns 172-173. I am not sure if I need to read the file line by line and make the change or if I can do this in a single statement. thank you (3 Replies)
Hi I was hoping someone could help me with a sed script I am trying to write? I am on a Mac running ElCapitan
I have some text that I have converted from a pdf that I want to format into an xml file.
In the file I have managed to delete all the text I do not need. The text I have left is... (8 Replies)
Perl::Critic::Policy::RegularExpressions::ProhibitUnusedUseruContributed Perl DoPerl::Critic::Policy::RegularExpressions::ProhibitUnusedCapture(3)NAME
Perl::Critic::Policy::RegularExpressions::ProhibitUnusedCapture - Only use a capturing group if you plan to use the captured value.
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
Perl regular expressions have multiple types of grouping syntax. The basic parentheses (e.g. "m/(foo)/") captures into the magic variable
$1. Non-capturing groups (e.g. "m/(?:foo)/" are useful because they have better runtime performance and do not copy strings to the magic
global capture variables.
It's also easier on the maintenance programmer if you consistently use capturing vs. non-capturing groups, because that programmer can tell
more easily which regexps can be refactored without breaking surrounding code which may use the captured values.
CONFIGURATION
This Policy is not configurable except for the standard options.
CAVEATS
"qr//" interpolation
This policy can be confused by interpolation of "qr//" elements, but those are always false negatives. For example:
my $foo_re = qr/(foo)/;
my ($foo) = m/$foo_re (bar)/x;
A human can tell that this should be a violation because there are two captures but only the first capture is used, not the second. The
policy only notices that there is one capture in the regexp and remains happy.
"@-", "@+", $LAST_MATCH_START and $LAST_MATCH_END
This policy will only recognize capture groups referred to by these variables if the use is subscripted by a literal integer.
$^N and $LAST_SUBMATCH_RESULT
This policy will not recognize capture groups referred to only by these variables, because there is in general no way by static analysis to
determine which capture group is referred to. For example,
m/ (?: (A[[:alpha:]]+) | (Nd+) ) (?{$foo=$^N}) /smx
makes use of the first capture group if it matches, or the second capture group if the first does not match but the second does.
CREDITS
Initial development of this policy was supported by a grant from the Perl Foundation.
AUTHOR
Chris Dolan <cdolan@cpan.org>
COPYRIGHT
Copyright (c) 2007-2011 Chris Dolan. Many rights reserved.
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 v5.16.3 2014-06-09 Perl::Critic::Policy::RegularExpressions::ProhibitUnusedCapture(3)