Demonstration purposes only. I wanted to show the data going is was the
user's data as described. The awk script is the key, the cat and sort
are merely decoration.
Martin Rushton
HPC System Manager, Weapons Technologies
Tel: 01959 514777, Mobile: 07939 219057
email: jmrushton@xxxxxxxxxxx
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-----Original Message-----
From: centos-bounces@xxxxxxxxxx [mailto:centos-bounces@xxxxxxxxxx] On
Behalf Of m.roth@xxxxxxxxx
Sent: 30 December 2011 15:06
To: CentOS mailing list
Subject: Re: UC Need help in writing a shell/bash script
Rushton Martin wrote:
> I knocked up the enclosed under Cygwin:
>
> #!/bin/sh
> (
> cat <<EOTx
> admin ankush
> admin amit
> powerusers dinesh
> powerusers jitendra
> EOTx
> ) | awk '
> {
> grpnm[$1] = grpnm[$1] ", " $2
> }
> END {
> for (i in grpnm) {
> print i ": " substr(grpnm[i], 3)
> }
> }
> ' | sort
>
<snip>
Why use cat? Why not just stick the filename in the command line, right
after the closing ', and before the pipe?
mark
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