counting characters Post: 302434416

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1. Shell Programming and Scripting

counting characters

Dears, I would like to count the number of "(" and ")" that occur in a file. (syntax checking script). I tried to use "grep -c" and this works fine as long as there is only one character (for which I do a search) on a line. Has anyone an idea how I can count the number of specific characters...

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Counting characters between comma's

I have a comma delimited file that roughly has 300 fields. Not all fields are populated. This file is fed into another system, what I need to do is count the amount of characters in each field and give me an output similiar to this: 1 - 6,2 - 25 The first number is the field and the second...

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counting the occurence of particular characters

I want to list the occurence of particular characters in a line. my file looks like this a,b,c,d e,f,g h,y:e,g,y s f;g,s,w and I want to count how many commas are in each line so the file in the end looks like this: a,b,c,d 3 e,f,g 2 h,y:e,g,y s 3 f;g,s,w ...

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Counting characters with sed

Input: ghw//yw/hw///??u How can i count the slashes("/") using sed?

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taking characters and counting them

Nevermind, I figured out a way using the sed command. But I forget the basic way of counting characters within a variable :(

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Counting characters within a file

Ok say I wanted to count every Y in a data file. Then set Y as my delimiter so that I can separate my file by taking all the contents that occur BEFORE the first Y and store them in a variable so that I may use this content later on in my program. Then I could do the same thing with the next Y's...

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Counting the number of characters

Hi all, Can someone help me in getting the following o/p I/p:...

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Counting characters vertically

I do have a big file in the following format >A1 ATGCGG >A2 TCATGC >A3 -TGCTG The number of characters will be same under each subheader and only possible characters are A,T,G,C and - I want to count the number of A's, T's,G's, C's & -'s vertically for all the positions so that I...

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Counting characters at each position

Hi All, here's a question from newbie I have a data like this, which set of small DNA sequences separated by new line GAATCCGGAAACAGCAACTTCAAANCA GTNATTCGGGCCAAACTGTCGAA TTNGGCAACTGTTAGAGCTCATGCGACA CCTGCTAAACGAGTTCGAGTTGAANGA TTNCGGAAGTGGTCGCTGGCACGG ACNTGCATGTACGGAGTGACGAAACCI...

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perl::critic::policy::builtinfunctions::prohibitlvaluesubstr

Perl::Critic::Policy::BuiltinFunctions::ProhibitLvalueSuUser(Contributed Perl DocPerl::Critic::Policy::BuiltinFunctions::ProhibitLvalueSubstr(3pm)

NAME

       Perl::Critic::Policy::BuiltinFunctions::ProhibitLvalueSubstr - Use 4-argument "substr" instead of writing "substr($foo, 2, 6) = $bar".

AFFILIATION

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

DESCRIPTION

       Conway discourages the use of "substr()" as an lvalue, instead recommending that the 4-argument version of "substr()" be used instead.

	   substr($something, 1, 2) = $newvalue;     # not ok
	   substr($something, 1, 2, $newvalue);      # ok

       The four-argument form of "substr()" was introduced in Perl 5.005.  This policy does not report violations on code which explicitly
       specifies an earlier version of Perl (e.g. "use 5.004;").

CONFIGURATION

       This Policy is not configurable except for the standard options.

SEE ALSO

       "substr" in perlfunc (or "perldoc -f substr").

       "4th argument to substr" in perl5005delta

AUTHOR

       Graham TerMarsch <graham@howlingfrog.com>

COPYRIGHT

       Copyright (c) 2005-2011 Graham TerMarsch.  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::BuiltinFunctions::ProhibitLvalueSubstr(3pm)

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting