in reply to Uncommon* but Useful Perl Command Line Options for One-liners
you could pass a 200 line script like this - though you might find it a pain to write all on one line.So, write it on multiple lines. -e may be repeated:
works like a charm.$ perl -wl -e 'print "This is line 1";' \ -e 'print "This is line 2";' \ -e 'print "This is line 3";' \ -e 'print "This is line 4";' \ -e 'print "This is line 5";'
-p (looping plus)Actually, it's a bit more subtle than that, as can be shown by using the deparser:in longhand it looks like this:
while(<>) { print ; }
The print is done in a continue block, so it will print even if you use next in the supplied code. Note also the label.$ perl -MO=Deparse -pe '1' LINE: while (defined($_ = <ARGV>)) { '???'; } continue { print $_; } -e syntax OK
-a (split)Well, that should be: @F = split;, but it should be noteworthy that -a only works in combination with -n or -t.in longhand:
split;
This is what I get when I run it:perl -01512 -e
You can only use -0 to set $/ to a one character string - not to set it to \r\n.$ perl -01512 -e 1 Unrecognized switch: -2 (-h will show valid options). $
Abigail
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Re: Re: Uncommon* but Useful Perl Command Line Options
by ysth (Canon) on Jan 29, 2004 at 00:37 UTC | |
by thor (Priest) on Jan 29, 2004 at 01:17 UTC | |
Re: Re: Uncommon* but Useful Perl Command Line Options
by Sol-Invictus (Scribe) on Jan 29, 2004 at 00:27 UTC |
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