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Shell Programming and Scripting
combining awk and sed
Post 302498360 by Franklin52 on Monday 21st of February 2011 06:31:05 AM
02-21-2011
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10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I would like to change the lines:
originalline1
originalline2
to:
originalline1new
originalline1newline
originalline2new
originalline2newline
To do this, id like to combine the commands:
sed 's/^/&new/g' file > newfile1
and
sed '/^/ a\\
newline\\
\\ (2 Replies)
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Before I ask my actual question, is it going to be a problem that I want to run this process on a 15 Gig file that is ~140 million rows?
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5
Tuesday
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It would be convenient to be able to combine awk tests. For example, suppose that I do this query:
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Hi,
I'm using AIX(ksh shell).
> cat temp.txt
"a","b",0
"c",bc",0
"a1","b1",0
"cc","cb",1
"cc","b2",1
"bb","bc",2
I want the output as:
"a","b","c","bc","a1","b1"
"cc","cb","cc","b2"
"bb","bc"
I want to combine multiple lines into single line where third column is same.
Is... (1 Reply)
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I need to run a cronjob that will monitor a directory for files with a certain extension, when one appears I then need to run the below scripts How do I go about combining the following sed statements into one script? and also retain the original filename.?
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I can achieve two tasks with 2 different awk commands:
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2) awk -F"bw:|gloss:" '// {print $2}' file | sed '/\//!d; s:/*+*: + :g; s:^+::; s: *+ *$::;' #to find segmentation of surface_word
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i have a datafile that has several lines that look like this:
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using the following command:
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Let's say I have an input file looking like:
ID1
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6 8
ID2
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Here is the whole script, very simple, but I am just learning
ROK_NO=$1
RPT=/tmp/test
sed -E '/^SELECT/ s/(.{23}).{8}/\1'"$ROK_NO"' /' $RPT
echo $RPT
When I run this I get
$ bash rok.sh 2388085
: No such file or directory
/tmp/test
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LEARN ABOUT DEBIAN
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)