Shocked I am, shocked!   No one remembered '..' ? 
    while( <DATA> ) {
        if( m/#BG/..m/#EN/ ) {
            print "$.: $_";
        }
    }
__DATA__
 blah blah blah
#BG blah blah blah
 blah blah blah
#EN
 blah blah blah
 blah #BG blah #EN blah
 blah blah blah

[download]
will output 
2: #BG blah blah blah
3:  blah blah blah
4: #EN
6:  blah #BG blah #EN blah
and as a one-liner Perl 
perl -ne "print if m/#BG/..m/#EN/;" anon03.dat

In reply to Re: File Filtering... Help by shenme
in thread File Filtering... Help by Anonymous Monk

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