samples

$vi my_second_script.ksh
#!/bin/ksh
###################################################
# Written By: Jason Thomas
# Purpose: This script was written to show users how to develop their first script
# May 1, 2008
###################################################

#Define Variables
HOME=”/home/jthomas” #Simple home directory
TIME=$(date +%H%M) # Set DATE equal to the output of running the shell command date
HOSTNAME=$(hostname) # Set HOSTNAME equal to the output of the hostname command

##################
function if_error
##################
{
if [[ $? -ne 0 ]]; then # check return code passed to function
print “$1” # if rc > 0 then print error msg and quit
exit $?
fi
}

if [[ -e /tmp/file ]]; then #Check to see if the file exists first
rm –rf /tmp/file #Delete file
if_error “Error: Failed removing file /tmp/file”
else
print “/tmp/file doesn’t exist”
fi

if [[ -e /tmp/test ]]; then
mkdir /tmp/test #Create the directory test
if_error “Error: Failed trying to create directory /tmp/test”
else
print “Directory exists, no need to create directory”
fi

case $TIME in
“2200”)
rm –rf /tmp/file1
;;
“2300”)
rm –rf /tmp/file1
;;
#End Script
esac

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