Re: Comparing an array against another array

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Re^2: Comparing an array against another array by jaldama (Acolyte) on Jan 17, 2012 at 17:07 UTC
How would I use something like this, though, to see what is in A but not in B? It doesn't matter if something else is in B that isn't in A.	[reply]
Re^3: Comparing an array against another array by choroba (Cardinal) on Jan 17, 2012 at 17:15 UTC
`#!/usr/bin/perl @A = qw/dog cat squirrel wolf/; @B = qw/dog cat monkey donkey/; undef @C{ @A }; delete @C{ @B }; say for keys %C; __END__ prints: squirrel wolf` [download]	[reply] [d/l]
Re^3: Comparing an array against another array by ansh batra (Friar) on Jan 17, 2012 at 17:12 UTC
use diff	[reply]
Re^3: Comparing an array against another array by jaldama (Acolyte) on Jan 17, 2012 at 22:19 UTC
I am using List::Compare, seemed like a good way to compare these two arrays. My comparing method doesn't seem to be producing the result it should be, though.. Would it be because doing ls -a stores each item on a new line? To clarify, here is the code: #!/usr/bin/perl use List::Compare; my $hostname = $ARGV[0]; my @hostFiles = qw/filecheck.pl hostscript.pl awesomeness.txt/; my @output =`ssh $hostname "cd Desktop; ls -a"`; $lc = List::Compare->new(\@hostFiles, \@output); @Lonly = $lc->get_unique; print @Lonly; [download] And this is what prints out `Password: awesomeness.txt filecheck.pl hostscript.pl` [download] So then I printed out what's on my desktop along with whatever @Lonly is saving as: `awesomeness.txt filecheck.pl hostscript.pl . .. .DS_Store .localized PERL TESTS compare.pl greptest.pl hostfilecheck.pl hostscript.pl` [download] Why would @Loutput still be showing hostscript.pl if that's on the Desktop?	[reply] [d/l] [select]