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Full Discussion: Need help in writing the shell script
Top Forums Shell Programming and Scripting Need help in writing the shell script Post 302242522 by ggayathri on Thursday 2nd of October 2008 05:52:09 AM
Old 10-02-2008
#! /bin/sh

echo "The current users are:"

who | awk '{print $1}' | sort > temp1
more temp1
grep -c 'gayathri' temp1 > temp2
more temp2
ifile="temp2"
line_1=$(head -1 $ifile)
echo $line_1
if [ "$line_1" -gt 0 ]
then
echo "id logged in"
else
echo "id not logged in"
fi
~
~
~
~
~
~


That's what I have tried
 

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LEARN ABOUT DEBIAN

apticron

apticron(1)						      General Commands Manual						       apticron(1)

NAME

       apticron - Generate a mail listing packages which are pending an upgrade

SYNOPSIS

       apticron [--cron]

DESCRIPTION

       apticron is a shell script which generates a mail with a list of all packages currently pending an upgrade, as well as summary of changes -
       using apt-listchanges - to a configurable Email address.

       apticron is mainly intended for automatic notification of pending security updates but can also be used	in  many  other  situations  where
       timely updates are necessary.

       The --cron option is only meant to be used when invoked by cron in order to run no more than once a day.

FILES

       /etc/apticron/apticron.conf
	      Configuration file, Email address to mail and profile for use with apt-listchanges are configurable.

       /etc/cron.d/apticron
	      Cron job for executing apticron daily.

       /etc/cron.daily/apticron
	      Fallback cron script for executing apticron (if no crond running or system down at designated time).

       /var/lib/misc/apticron.cron
	      Time stamp file used by apticron when invoked with --cron option.

SEE ALSO

       apt-get(8), apt-listchanges(1), cron(8)

AUTHOR

       Apticron  was initially developed by Colm MacCarthaigh <colm.maccarthaigh@heanet.ie> with contributions from Marc Sherman <msherman@projec-
       tile.ca>. Since 2006 it is maintained and improved by Tiago Bortoletto Vaz <tiago@debian.org>.

																       apticron(1)
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