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Full Discussion: help with shell program
Top Forums Shell Programming and Scripting help with shell program Post 302142871 by adgarg on Tuesday 30th of October 2007 02:45:00 AM
Old 10-30-2007
help with shell program
I want to print the value of variables a1, a2, a3 in for loop in the following program:

a1=this
a2=is
a3=printed

for((i=1;i<4;i++))
do
var=a$i
#w=`echo $var`
e=${var}
echo $e
done

But actually I get a1,a2,a3 as the output not the "this is printed"

So the main question is if I have a variable name(say p1) in another variable(in Q) how will I print the value of p1 from Q?

Thanks,
 

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LEARN ABOUT DEBIAN

uprecords

UPRECORDS(1)						      General Commands Manual						      UPRECORDS(1)

NAME

       uprecords - provides uptime records

SYNOPSIS

       uprecords [ -?abBcfkKMsv ] [ -i <interval> ] [ -m <count> ]

DESCRIPTION

       This manual page documents the uprecords program.

       uprecords is a program that provides record statistics from the uptimed(8) program.

OPTIONS

       -?     Show usage

       -a     Do not print ANSI codes

       -b -B  Sort by time of bootup, oldest entry first. -B reverses. Option implies -s.  Do not print ANSI codes

       -c     Do not show current entry if not in top entries

       -f     Run continuously in a loop

       -k -K  Sort by kernel/system name. -K reverses. Option implies -s.

       -M     Show next milestone

       -s     Do not print extra statistics

       -i <interval>
	      Use <interval> seconds for loop instead of 5, implies -f

       -m <count>
	      Show a maximum of top COUNT entries instead of 10

       -v     Show version information

SEE ALSO

       uptimed(8)

AUTHOR

       Rob Kaper <cap@capsi.com>.

       This  manual  page was written by Alan Ford <alan@whirlnet.co.uk>, for the Debian GNU/Linux system (but may be used by others). It was last
       modified for uptimed version 0.3.7.

								   June 20, 2004						      UPRECORDS(1)
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