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Homework and Emergencies Homework & Coursework Questions awk command to retrieve record 23 and 89 from UNIX file Post 303002806 by rakeshp on Friday 1st of September 2017 04:17:00 PM
Old 09-01-2017
awk command to retrieve record 23 and 89 from UNIX file

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1. The problem statement, all variables and given/known data:



I am looking for awk command to retrieve only the record number 23 and record number 89 from a unix file? Please let me know what is the awk command for this?



2. Relevant commands, code, scripts, algorithms:

Awk command in Unix

3. The attempts at a solution (include all code and scripts):

Looking for only awk command only and not for other commands like sed , head or tail.

4. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):

I am looking for a job on where it needs Unix skill.So I am exploring the possible opportunities to gain the skill. I completed my University 2 years ago.I am not studying in any school or university nowSmilie


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Last edited by rakeshp; 09-01-2017 at 05:39 PM..
 

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English(3pm)						 Perl Programmers Reference Guide					      English(3pm)

NAME
English - use nice English (or awk) names for ugly punctuation variables SYNOPSIS
use English; use English qw( -no_match_vars ) ; # Avoids regex performance penalty # in perl 5.16 and earlier ... if ($ERRNO =~ /denied/) { ... } DESCRIPTION
This module provides aliases for the built-in variables whose names no one seems to like to read. Variables with side-effects which get triggered just by accessing them (like $0) will still be affected. For those variables that have an awk version, both long and short English alternatives are provided. For example, the $/ variable can be referred to either $RS or $INPUT_RECORD_SEPARATOR if you are using the English module. See perlvar for a complete list of these. PERFORMANCE
NOTE: This was fixed in perl 5.20. Mentioning these three variables no longer makes a speed difference. This section still applies if your code is to run on perl 5.18 or earlier. This module can provoke sizeable inefficiencies for regular expressions, due to unfortunate implementation details. If performance matters in your application and you don't need $PREMATCH, $MATCH, or $POSTMATCH, try doing use English qw( -no_match_vars ) ; . It is especially important to do this in modules to avoid penalizing all applications which use them. perl v5.18.2 2014-01-06 English(3pm)
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