what is perl's no op operator?

[Dan Jacobson]

In the shell, I can do echo $a; : echo $b; echo $c
to turn off b with minimal disturbance to the one-liner.
In perl, one can't get away with just adding a ": ":
print $a; if(0){print $b}; print $c; #best I know
Is there a way less disruptive to this one-liner?

 

[Eric J. Roode]

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Hash: SHA1

In the shell, I can do echo $a; : echo $b; echo $c
to turn off b with minimal disturbance to the one-liner.
In perl, one can't get away with just adding a ": ":
print $a; if(0){print $b}; print $c; #best I know
Is there a way less disruptive to this one-liner?

Mmmm, probably prepend "0 and".

- --
Eric
$_ = reverse sort qw p ekca lre Js reh ts
p, $/.r, map $_.$", qw e p h tona e; print

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5ha2eBcmTuhjIYoG+SJZoUe+
=w024
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[Ilya Zakharevich]

[A complimentary Cc of this posting was sent to
Eric J. Roode

Mmmm, probably prepend "0 and".

Wrong precedence.

0 and 1 or print "got here\n";

0 and 1 while print "got here\n";

Hope this helps,
Ilya

P.S. There is no comment-part-of-line construct in Perl.

 

[pkent]

In the shell, I can do echo $a; : echo $b; echo $c
to turn off b with minimal disturbance to the one-liner.
In perl, one can't get away with just adding a ": ":
print $a; if(0){print $b}; print $c; #best I know
Is there a way less disruptive to this one-liner?

You can also use 'if' as a 'statement modifier', which is where it goes
at the end of the statement, like:

print $foo if 0;

P