Question

$df_ret = `ssh -q rajesh 'df -hP'`;

print "The value is $df_ret";   

if ($df_ret =~ /\/boot/) 
{
    print "The value is $df_ret";
}

Expected result:

/dev/sda1               126931     39530     80848  33% /boot

But, it’s coming whole df -k output. Any idea?

Answer 1

Your regex is matching against the whole output as one string. You probably want to split it into lines, first and then match each line:

my @df_ret = `ssh -q rajesh 'df -hP'`;

foreach my $line (@df_ret) {
    if ($line =~ m! /boot$!)
    {
        print "The value is $line";
    }
}