How to find a specific term in a Perl document?

Question

I want to look at the definition of ARGV,$ARGV,@ARGV , so I use perldoc to find it. Since this is not a sub or module, perldoc -f or perldoc module would not help.

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

My question is how to find a generic term in a Perl Document? Or how to find out that ARGV is in perlvar ? Is a universal search tool used for this?

Answer 1

Found after a brief search 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 command name itself. See $0 for the command name. 

Although you need to be creative when looking for scalars to avoid shell interpolation:

 perldoc -f '$ARGV' 

Answer 2

perldoc is not a solution; his problem. Decision:

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

or

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

Do not accept replacement.

Answer 3

Another alternative: Google uses

 site:perldoc.perl.org TERM 

Answer 4

Personally, I started reading perl documentation with perldoc perl . It contains a brief overview of all perl documents (except modules) present in your version of perl. For more details, you will notice that one of the documents in the Overview section is “perltoc”, so a little dry reading in perldoc perltoc will likely answer your question.