scan a UNIX file of a string

[David Draley]

Hello -

I am trying to scan a UNIX file for a string.  I used a filehandle to do 
this task - (Below) How would I complete the same taks without using 
filehandles? Would it be GREP??
------------------------------
#!/usr/local/bin/perl

open (DD,"/etc/passwd") || die "cannot open: $!";

while (<DD>)
        {
                if (/cm398/)
                        {
                                print "$_ \n";
                        }
}

thank you

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