Re: storing grep output to variable

You're using the shell utility "grep" by virtue of the backtick quoting - not the perl function "grep" which is similar. Here is is a chunk of perl code that will do a case sensisive grep of a file.

  open(IN, $ARGV[0]);
  @foo = grep { m/$ARGV[1]/ } <IN>;
  print @foo;
[download]

Comment on Re: storing grep output to variable Download Code

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Re^2: storing grep output to variable by Anonymous Monk on Jun 08, 2004 at 18:01 UTC
Thanks very much everyone! I have gotten the code to work! I went with the following coding: `my @lines = grep /$prop/, <FILE>;` [download] This seems to give the result I was looking for, though it's not exactly identical to any of the great solutions you all gave. Anyway thanks for curing my ignorance of grep - at least partially :)	[reply] [d/l]
Re^3: storing grep output to variable by wolv (Pilgrim) on Jun 09, 2004 at 13:27 UTC
That's the solution I would use myself. I'd just like to make a note that `FILE` type filehandles are global. Instead of globals you should use a lexical filehandle: `open my $file, '<', $filename or die $!`. See `perldoc -f my` and `perldoc perlsub (Private Variables via my())` for an explanation of globals and lexicals.	[reply] [d/l] [select]