Hi
Let say there is a file a.txt which contain number rows.
My intention is to find the number of occurences of a pattern. Let say the pattern is mdbase. then it should not count the occurences of mdbase1 or mdbase2 like this. When I tried to find it like
grep "/backup/surjya/mdbase"... (7 Replies)
I am trying to do some thing like this ..
In a file , if pattern found insert new pattern at the begining of the line containing the pattern.
example:
in a file I have this.
gtrow0unit1/gctunit_crrownorth_stage5_outnet_feedthru_pin
if i find feedthru_pin want to insert !! at the... (7 Replies)
Hi All,
I need to search in a csv file as mentioend in the Appendix A for a exact word lets "TEST".
But using teh below command iam getting TEST1234, TEST12 and otehr entries as well.
the problem is i check this condition to check to add a record to a table by making sure it does not... (16 Replies)
Contents of my file is:
DI
DI
DIR
PHI
I want to extract only DI. I am using below command
grep -w DI <file>
but it is also extracting DI.
Can i use any other command to extract exact pattern where '[' does not have special meaning (4 Replies)
Hello.
I have written the following script to search and replace from one file into another.
#awk script to search and replace from file a in file b
NR == FNR { A=$2; next }
{ for( a in A ) sub(a, A)}1 file2 file1
While the function works pretty well, I want
a. The word in File 2 to... (8 Replies)
Hello Everyone,
Im trying to run a search and replace of exact strings and the strings that im using variables that are passed through an array in a while loop. Here is a snip of my code:
USEROLD=`cat oldusers`
USERNEW=`cat newusers`
USEROLDARRAY=( $USEROLD )
USERNEWARRAY=( $USERNEW )... (4 Replies)
My Input :
Hi editor
this is the
exact
pattern
which we looking for
the
previous
patternmatch
My code:
awk '/pattern/ { print a } { a = $0 }'
Current output :
exact
previous (3 Replies)
I have this fileA
TEST FILE ABC
this file contains ABC;
TEST FILE DGHT this file contains DGHT;
TEST FILE 123
this file contains ABC,
this file contains DEF,
this file contains XYZ,
this file contains KLM
;
I want to have a fileZ that has only (begin search pattern for will be... (2 Replies)
Perl::Critic::Policy::InputOutput::ProhibitTwoArgOpen(3pUser Contributed Perl DocumentatPerl::Critic::Policy::InputOutput::ProhibitTwoArgOpen(3pm)NAME
Perl::Critic::Policy::InputOutput::ProhibitTwoArgOpen - Write "open $fh, q{<}, $filename;" instead of "open $fh, "<$filename";".
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
The three-argument form of "open" (introduced in Perl 5.6) prevents subtle bugs that occur when the filename starts with funny characters
like '>' or '<'. The IO::File module provides a nice object-oriented interface to filehandles, which I think is more elegant anyway.
open( $fh, '>output.txt' ); # not ok
open( $fh, q{>}, 'output.txt' ); # ok
use IO::File;
my $fh = IO::File->new( 'output.txt', q{>} ); # even better!
It's also more explicitly clear to define the input mode of the file, as in the difference between these two:
open( $fh, 'foo.txt' ); # BAD: Reader must think what default mode is
open( $fh, '<', 'foo.txt' ); # GOOD: Reader can see open mode
This policy will not complain if the file explicitly states that it is compatible with a version of perl prior to 5.6 via an include
statement, e.g. by having "require 5.005" in it.
CONFIGURATION
This Policy is not configurable except for the standard options.
NOTES
There are two cases in which you are forced to use the two-argument form of open. When re-opening STDIN, STDOUT, or STDERR, and when doing
a safe pipe open, as described in perlipc.
SEE ALSO
IO::Handle
IO::File
AUTHOR
Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>
COPYRIGHT
Copyright (c) 2005-2011 Imaginative Software Systems. All rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.14.2 2012-06-07 Perl::Critic::Policy::InputOutput::ProhibitTwoArgOpen(3pm)