I need to check whether my file is up to date or no...Can you tell me command in shell which helps to do it??? With example please.

What do you mean by 'up to date'? Modified today?

NEWER...with IF test ...I guess yes.....

Newer than what?

Have a look at this page for the complete list of test-expression used with if

[[ -N filename ]] && echo yes || echo no

#!/bin/sh
It does not work. It gives me only NO. $3 $4$5$6 my files
file=$1
target=$2
while read line
do
if [ "$line" != "" ]
then
set $line
if [ "$1" = "$target" ]
then
if [ "$2" = ":" ]
then
for i in $3 $4 $5 $6
do
-N i && echo yes || echo no
done
fi
fi
fi
done< $file

---------- Post updated at 01:19 PM ---------- Previous update was at 01:15 PM ----------

I found out whats wrong thank you for helping