Tricky sed required Post: 302810363

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Tricky Sed

Hello. I am trying to convert occurrences of 'NULL' from a datafile. The 'NULL' occurences appears at this: |NULL| NULL|NULL| NULL|NULL| NULL|NULL| NULL| There should be 52 fields per line. I would like any occurrence of | NULL| or |NULL| to appear as '||' Currently I am using this sed...

2. UNIX for Dummies Questions & Answers

Sed-- command help required

Hi Gurus, I have a small requirement. Let suppose i have a file test.txt test.txt contains Dispatched date = '2008-04-08' Name = 'Logers' Now i want to add one more line to it as Number of Responses = "$a" $a will be chnaging dynamically which i had grepped it in the script. Now i...

3. Shell Programming and Scripting

Help in sed required.

Hi All, I am facing a small problem in sed. I want to insert a line in the existing file. Existing code: access to attr=userPassword by self write by * auth access to * by self write by users read by anonymous auth Desired code: access to attr=userPassword by self...

4. Shell Programming and Scripting

Help required in sed or awk.

Hi All, I need to pick up data on both sides of "=" sign. For eg, following is the context that I have. 125.156.125.147=machine1 147.125.185.156=machine2 147.125.185.159=machine3 Can I have the ip address in one variable and machine name in another variable using sed or awk. ...

5. Shell Programming and Scripting

Help required with awk/sed

Hi I have a file, with format like: column1|coulumn2|column3|column4 A|X|K|18 L|O|R|31,42,25 G|H|I|55,66 L|E|Q|25,31,94 output required: column1|coulumn2|column3|column4 A|X|K|18 L|O|R|31,25 L|E|Q|25,31 Input File Format: All columns are seperated using |, last column...

6. Shell Programming and Scripting

Tricky sed or awk question

Hello everyone, unfortunately I am no unix nor scripting guru, which is why I am asking for help here. I am trying to reformat a .csv file using sed or awk which has the following format: a,b,C-D-E,f,g h,i,J,k,l m,n,O-P-Q-R-S,t,u v,w,X-Y,z,a It's basically a 5-field text file which has an...

7. Shell Programming and Scripting

Another tricky sed or awk question

This post is in reference to https://www.unix.com/shell-programming-scripting/137977-tricky-sed-awk-question-post302428154.html#post302428154 I am trying to go the opposite direction now: I have the following file: a,b,C,f,g a,b,D,f,g a,b,E,f,g h,i,J,k,l m,n,O,t,u m,n,P,t,u m,n,Q,t,u...

8. Shell Programming and Scripting

sed tricky problem

Hi, I have a file which contains two strings: AAAAA and BBBBB I have two variables in my script: DATE="03/21/2010" aDate="20100321" I need to replace string AAAAA with variable $DATE and BBBBB with $aDate. Here is what I do sed "s/AAAAA/$DATE/" $BASIC_TMPLT | sed "s/BBBBB/$aDate/" >...

9. Shell Programming and Scripting

sed help required

Hi All, I have one file with below type of data in it, $ cat test.txt ###123 ###xyxytuerwb ###2 ###tyupe Here I would like to replace all the characters with "x" after the 3 "###" with the same number of characters. Can you please help me to achieve this.

10. UNIX for Dummies Questions & Answers

Clarification required on sed

Hi Can some one tell what does this sed command do sed 's/*$//g I am more curious on the highlighted part , can some one explain what does that mean. Thanks Sri

LEARN ABOUT DEBIAN

perl::critic::policy::valuesandexpressions::prohibitinterpolatio

Perl::Critic::Policy::ValuesAndExpressions::ProhibitInteUseraContrPerl::Critic::Policy::ValuesAndExpressions::ProhibitInterpolationOfLiterals(3pm)

NAME

       Perl::Critic::Policy::ValuesAndExpressions::ProhibitInterpolationOfLiterals - Always use single quotes for literal strings.

AFFILIATION

       This Policy is part of the core Perl::Critic distribution.

DESCRIPTION

       Don't use double-quotes or "qq//" if your string doesn't require interpolation.	This saves the interpreter a bit of work and it lets the
       reader know that you really did intend the string to be literal.

	   print "foobar";     #not ok
	   print 'foobar';     #ok
	   print qq/foobar/;   #not ok
	   print q/foobar/;    #ok

	   print "$foobar";    #ok
	   print "foobar
";   #ok
	   print qq/$foobar/;  #ok
	   print qq/foobar
/; #ok

	   print qq{$foobar};  #preferred
	   print qq{foobar
}; #preferred

       Use of double-quotes might be reasonable if the string contains single quote (') characters:

	   print "it's me";    # ok, if configuration flag set

CONFIGURATION

       The types of quoting styles to exempt from this policy can be configured via the "allow" option.  This must be a whitespace-delimited
       combination of some or all of the following styles: "qq{}", "qq()", "qq[]", and "qq//".

       This is useful because some folks have configured their editor to apply special syntax highlighting within certain styles of quotes.  For
       example, you can tweak "vim" to use SQL highlighting for everything that appears within "qq{}" or "qq[]" quotes.  But if those strings are
       literal, Perl::Critic will complain.  To prevent this, put the following in your .perlcriticrc file:

	   [ValuesAndExpressions::ProhibitInterpolationOfLiterals]
	   allow = qq{} qq[]

       The flag "allow_if_string_contains_single_quote" permits double-quoted strings if the string contains a single quote (') character.  It
       defaults to off; to turn it on put the following in your .perlcriticrc file:

	   [ValuesAndExpressions::ProhibitInterpolationOfLiterals]
	   allow_if_string_contains_single_quote = 1

SEE ALSO

       Perl::Critic::Policy::ValuesAndExpressions::RequireInterpolationOfMetachars

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.  The full text of this license
       can be found in the LICENSE file included with this module.

perl v5.14.2							  Perl::Critic::Policy::ValuesAndExpressions::ProhibitInterpolationOfLiterals(3pm)