Shell Script To Read File Date - Last Access / Modification Time

#!/bin/bash
# Write a shell script to display / read file date / time in following format:
# Time of last access
# Time of last modification
# Time of last change
# -------------------------------------------------------------------------
# Copyright (c) 2007 nixCraft project
# This script is licensed under GNU GPL version 2.0 or above
# -------------------------------------------------------------------------
# This script is part of nixCraft shell script collection (NSSC)
# Visit http://bash.cyberciti.biz/ for more information.
# -------------------------------------------------------------------------
FILE="$1"

# make sure we got file-name as command line argument
if [ $# -eq 0 ]
then
echo "$0 file-name"
exit 1
fi

which stat > /dev/null

# make sure stat command is installed
if [ $? -eq 1 ]
then
echo "stat command not found!"
exit 2
fi

# make sure file exists
if [ ! -e $FILE ]
then
echo "$FILE not a file"
exit 3
fi

# use stat command to get info
echo "Time of last access : $(stat -c %x $FILE)"
echo "Time of last modification : $(stat -c %y $FILE)"
echo "Time of last change : $(stat -c %z $FILE)"