Adobe Interview Question






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USER=`/usr/ucb/whoami`
CRONLOC=/var/spool/cron/crontabs
CRONCOMMFILE=/tmp/cron_comm_file.sh
CRONGREP=`crontab -l | grep sys_diag`


if [ "$CRONGREP" != "" ];
then
echo "Crontab already exists"
exit
fi
#
# Create command file to create crontab file
#
# If command files already exists delete it
#
if [ -f $CRONCOMMFILE ]; then
rm -f $CRONCOMMFILE
fi

CRONLINE="0 9 * * 1,3,5 rm /var/www/myfolder/*.html"


#
# Added commands into the file to create the crontab entry
#

echo "#!/bin/sh" >> $CRONCOMMFILE
echo "EDITOR=ed" >> $CRONCOMMFILE
echo "export EDITOR" >> $CRONCOMMFILE


echo "crontab -e $USER << EOF > /dev/null" >> $CRONCOMMFILE
echo "a" >> $CRONCOMMFILE
echo "$CRONLINE" >> $CRONCOMMFILE
echo "." >> $CRONCOMMFILE
echo "w" >> $CRONCOMMFILE
echo "q" >> $CRONCOMMFILE
echo "EOF" >> $CRONCOMMFILE

chmod 750 $CRONCOMMFILE

#
# Execute the the crontab command file
#
if [ -f $CRONCOMMFILE ]; then
$CRONCOMMFILE
rm $CRONCOMMFILE
else
echo "Error: File generated to create crontab entry does not exist"
exit 1
fi

echo "Crontab Entry Inserted Successfully"
#

- Anonymous December 07, 2010 | Flag Reply


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