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9.1

Unix Shell Perl script to filter out repeated sort key within a large file ( sed awk grep wc )

Asked by sunhux in Shell Scripting, Perl Programming Language, Unix Operating Systems

Tags: Unix Shell Perl script to filter out repeated sort key within a large file ( sed awk grep wc )

I have following files (with millions of lines) which is currently not sorted
 by first column value & may have preceding space(s) in front :

113 found in platter 3222
127 found in platter 3922
  113 found in platter 3735
1323 found in platter 3213
 1323 found in platter 3898
53323 found in platter 3288
1323 found in platter 3223
....
 (127 & 53323 each occurs only once in this file)

The output should be (ie those records with first column value will
be eliminated & sorted by first column as primary key followed by
5th column value as secondary sort key) :

113 found in platter 3222
113 found in platter 3735
1323 found in platter 3213
1323 found in platter 3223
1323 found in platter 3898
....
[+][-]10/22/09 02:34 AM, ID: 25632197Accepted Solution

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About this solution

Zones: Shell Scripting, Perl Programming Language, Unix Operating Systems
Tags: Unix Shell Perl script to filter out repeated sort key within a large file ( sed awk grep wc )
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Solution Provided By: vinit_kain
Participating Experts: 3
Solution Grade: A
 
[+][-]10/21/09 02:05 AM, ID: 25621934Author Comment

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[+][-]10/21/09 02:06 AM, ID: 25621943Author Comment

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[+][-]10/21/09 02:25 AM, ID: 25622071Assisted Solution

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[+][-]10/21/09 02:26 AM, ID: 25622082Assisted Solution

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[+][-]10/21/09 11:11 PM, ID: 25631216Author Comment

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[+][-]10/22/09 02:30 AM, ID: 25632168Assisted Solution

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