regex help on unix df

Question

I need some help tweaking my code to look for another attribute in this unix df output:

Ex.

Filesystem     Size    Used   Avail Capacity         


        

Answer 1

I think it is probably best to split the lines, skipping the first line. Since you don't mind using @df and $df, neither do I:

my @df = qx(df -k /tmp);
shift @df;                # Lose df heading line
foreach my $df (@df)
{
    my($system, $size, $used, $avail, $capacity, $mount) = split / +/, $df;
    ....
}

This gives you all the fields at once. Now you just need to interpret the 'G' and lose the '%', etc.