CODEWITHSUNDEEP
perl
everbox
everbox

Reputation: 1199

How to find some specific term in Perl Document?

I want to look the definition of ARGV,$ARGV,@ARGV, so I use perldoc to find it. Since it's not a sub nor a module ,perldoc -f or perldoc module would not help.

I asked someone and he told me to look at perldoc perlvar,and I found ARGV section.

My question is how to find some general term in Perl Document? Or how to find out that ARGV is in perlvar ? Some universal search tool to do this?

Upvotes: 4

Views: 181

Answers (4)

ikegami
ikegami

Reputation: 386396

Another alternative: Google using

site:perldoc.perl.org TERM

Upvotes: 1

TLP
TLP

Reputation: 67910

Found after a brief search of perldoc --help:

....
-v   Search predefined Perl variables

So, basically:

$ perldoc -v @ARGV

@ARGV   The array @ARGV contains the command-line arguments intended
        for the script.  $#ARGV is generally the number of arguments
        minus one, because $ARGV[0] is the first argument, not the
        program's command name itself.  See $0 for the command name.

Though you'll have to be creative when looking up scalars to avoid shell interpolation:

perldoc -f '$ARGV'

Upvotes: 4

Tanktalus
Tanktalus

Reputation: 22294

Personally, I started reading the perl documentation with perldoc perl. It has a brief overview of all the perl docs (except modules) present in your version of perl. For a bit more detail, you'll notice that one of the docs in the "Overview" section is "perltoc", so a bit of dry reading in perldoc perltoc would likely answer your question.

Upvotes: 0

tchrist
tchrist

Reputation: 80433

perldoc is not the solution; it’s the problem. The solution is either:

$ cd src/perl/pod
$ grep foo *.pod

or

$ cd src/perl/pod
$ pod2text `grep -l foo *.pod` | more

Accept no substitutes.

Upvotes: 1

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