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Top Forums Shell Programming and Scripting read the first 10 lines below a keyword found by grep Post 302431774 by alain.kazan on Wednesday 23rd of June 2010 02:45:54 AM
Old 06-23-2010
Hi Again,

this is working fine
Code:
nawk 'c-->0;$0~s{if(b)for(c=b+1;c>1;c--)print r[(NR-c+1)%b];print;c=a}b{r[NR%b]=$0}' b=0 a=9 s="0xA" file.txt

can i make every 10 lines be on one line in the output separated by a delimiter perhaps ?

Alain

Last edited by Franklin52; 06-23-2010 at 08:30 AM.. Reason: Please use code tags
 

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APROPOS(1)						    BSD General Commands Manual 						APROPOS(1)

NAME
apropos, whatis -- keyword search whatis documentation databases SYNOPSIS
apropos [-d] keyword ... whatis [-d] keyword ... DESCRIPTION
The apropos utility searches a set of databases looking for documentation matching each keyword and displays the results. The whatis utility does the same search but only on complete words. -d Print extra debugging information. The keyword is simply passed to grep(1) allowing for extended regular expression matches. ENVIRONMENT
The following environment variables affect the execution of apropos: MANLOCALES, MANPATH, PATH Used to find the location of the whatis database files. See manpath(1) for additional information. PAGER Program used to display files. If unset, more -s is used. DIAGNOSTICS
The apropos utility exits 0 if a keyword matched and 1 if no keywords are matched or no whatis databases are found. SEE ALSO
grep(1), makewhatis(1), man(1), manpath(1), man.conf(5) BSD
September 1, 2010 BSD
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