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Re: Regex variables with delimiters

by johngg (Canon)
on May 18, 2019 at 11:22 UTC ( #11100223=note: print w/replies, xml ) Need Help??


in reply to Regex variables with delimiters

Perhaps you could read all of the lines from your second file, before starting to process the first, and construct a single regular expression with all of the strings you want to exclude.

johngg@shiraz:~/perl/utils$ perl -Mstrict -Mwarnings -E ' open my $file2FH, q{<}, \ <<__EOD2__ or die $!; /dumpx/DUMP4X/var/level6/55 /dumpx/DUMP4X/var/level7/58 __EOD2__ my $rxExcl = do { chomp( my @lines = <$file2FH> ); local $" = q{|}; qr{@lines}; }; close $file2FH or die $!; open my $file1FH, q{<}, \ <<__EOD1__ or die $!; /dev/sda3 6 Fri Apr 12 04:27:19 2019 +0100 /dumpx/DUMP3X/var/level6/ +47 81.34 MB /dev/sda4 6 Fri Apr 12 04:30:02 2019 +0100 /dumpx/DUMP4X/var/level6/ +55 86.53 MB /dev/sdb1 6 Fri Apr 12 04:31:47 2019 +0100 /dumpx/DUMP4X/var/level6/ +56 27.73 MB /dev/sdb2 6 Fri Apr 12 04:33:33 2019 +0100 /dumpx/DUMP4X/var/level7/ +58 57.32 MB __EOD1__ while ( <$file1FH> ) { print unless m{$rxExcl}; } close $file1FH or die $!;' /dev/sda3 6 Fri Apr 12 04:27:19 2019 +0100 /dumpx/DUMP3X/var/level6/ +47 81.34 MB /dev/sdb1 6 Fri Apr 12 04:31:47 2019 +0100 /dumpx/DUMP4X/var/level6/ +56 27.73 MB

I hope this is useful.

Cheers,

JohnGG

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Re^2: Regex variables with delimiters
by AnomalousMonk (Bishop) on May 18, 2019 at 14:52 UTC

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