Shell Programming and Scripting

#!/bin/bash

if [ "$( cat $1)" -lt "$( sed -n '4 p' $2)" ]
then
        echo "less than"
fi

 sec.txt disp.txt

$ head sec.txt disp.txt 
==> sec.txt <==
3172

==> disp.txt <==

the file name is
***********
45676
$ cat script.pl
use warnings;
use strict;

my @nums;

while ( <> ) {
        chomp;
        if ( m/\A\d+\Z/ ) {
                push @nums, $_;
                close $ARGV;
        }
}

if ( @nums >= 2 ) {
        printf qq[%s\n], ($nums[0] == $nums[1]) ? q[Equal] : q[Not equal];
}
else {
        printf qq[Error\n];
}
$ perl script.pl sec.txt disp.txt 
Not equal

#!/bin/bash  if [ "$( cat $sec.txt)" -lt "$( sed -n '4 p' $disp.txt)" ] then         echo "less than" fi

newfile.sh

chmod 750 newfile.sh

./newfile.sh sec.txt disp.txt

$1

$2

$MYFILE_1

$MYFILE_2

$1

$2