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Top Forums Shell Programming and Scripting print first few lines, then apply regex on a specific column to print results. Post 302447887 by bartus11 on Tuesday 24th of August 2010 03:11:13 PM
Old 08-24-2010
Try:
Code:
var1='aaaaaa1'; /usr/xpg4/bin/awk -v var2=$var1 'NR<=5 || NR>5 && $11 ~ "^"var2' abc.dat

 

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PR(1)							      General Commands Manual							     PR(1)

NAME
pr - print file SYNOPSIS
pr [ option ] ... [ file ] ... DESCRIPTION
Pr produces a printed listing of one or more files. The output is separated into pages headed by a date, the name of the file or a speci- fied header, and the page number. If there are no file arguments, pr prints its standard input. Options apply to all following files but may be reset between files: -n Produce n-column output. +n Begin printing with page n. -h Take the next argument as a page header. -wn For purposes of multi-column output, take the width of the page to be n characters instead of the default 72. -ln Take the length of the page to be n lines instead of the default 66. -t Do not print the 5-line header or the 5-line trailer normally supplied for each page. -sc Separate columns by the single character c instead of by the appropriate amount of white space. A missing c is taken to be a tab. -m Print all files simultaneously, each in one column, Inter-terminal messages via write(1) are forbidden during a pr. FILES
/dev/tty? to suspend messages. SEE ALSO
cat(1) DIAGNOSTICS
There are no diagnostics when pr is printing on a terminal. PR(1)
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