Many configuration files contain many comments, including commented- out default configuration directives. Write a program to remove these com- ments from a configuration file.

What will be an ideal response?

$ cat config-squish.pl
#!/usr/bin/perl
use warnings;
use strict;
while ( <> ) {
# Strip the trailing newline
chomp;
# Skip any lines that begin with a comment,
# potentially after leading whitespace
next if /^\s*#/;
# Strip any trailing whitespace
s/\s+$//;
# If there is at least one character left on
# the line, print it
print "$_\n" if /./;
}