Re: 'Transparent grep'

grep and the likes already do that.

Update:

perl -ne'$m|=/regex/?print&&1:0}exit!$m;{'

     1234567890123456789012345678901234567
              1         2         3
[download]

Comment on Re: 'Transparent grep' Select or Download Code

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Re^2: 'Transparent grep' by almut (Canon) on Feb 26, 2009 at 23:31 UTC
`$? = ...;` doesn't set the exit code. Works for me: `perl -e 'END{$?=1}' && echo foo # prints nothing perl -e 'END{$?=0}' && echo foo # prints "foo"` [download] You can manipulate `$?` in an END block. From perlmod: Inside an "END" code block, $? contains the value that the program is going to pass to "exit()". You can modify $? to change the exit value of the program.	[reply] [d/l] [select]
Re^3: 'Transparent grep' by ikegami (Patriarch) on Feb 26, 2009 at 23:33 UTC
doh, I tested it outside of END. And I now see he wants to print every line. Just ignore my post!	[reply]