On Fri, 20 Apr 2001, Chip Wiegand wrote:
> I once saw a command for listing the installed modules, but now cannot
> remember it. I am using FreeBSD 4.2 with Apache 1.3.14 and Perl
> 5.005_03.
CGI.pm is part of the standard Perl distribution, so it will
probably be hard to find a perl installation without it.
But for the general case, here's a few variations.
$ perl -MCGI -e 1
will print an error if the module is not installed, like:
$ perl -MnoCGI -e 1
Can't locate noCGI.pm in @INC (@INC contains: /usr/libdata/perl/5.00503/mach
/usr/libdata/perl/5.00503
/usr/local/lib/perl5/site_perl/5.005/i386-freebsd /usr/local/lib/perl5/site_perl/5.005
.).
BEGIN failed--compilation aborted.
Most module can also have their version checked in a similar manner,
$ perl -MDBI=2 -e 1
DBI 2 required--this is only version 1.15
(/usr/local/lib/perl5/site_perl/5.005/i386-freebsd/DBI.pm) at -e line 0
BEGIN failed--compilation aborted.
shows me that I have DBI 1.15 installed.
To see a list of all installed modules with a newer version on CPAN,
run the CPAN shell:
perl -MCPAN -e shell
(here you might have to configure it the first time it runs)
and then type the "r" command at the cpan shell:
cpan> r
Before doing that you might want to install the latest version of
the CPAN module, like
cpan> install CPAN
You can also get information about the currently installed version
of a module by doing a
cpan> i CGI
Module id = CGI
CPAN_USERID LDS (Lincoln D. Stein <[EMAIL PROTECTED]>)
CPAN_VERSION 2.753
CPAN_FILE L/LD/LDS/CGI.pm-2.753.tar.gz
MANPAGE CGI - Simple Common Gateway Interface Class
INST_FILE /usr/libdata/perl/5.00503/CGI.pm
INST_VERSION 2.46
tells me that I probably should upgrade my CGI module...
Learn more about the very useful CPAN module by typing
perldoc CPAN
in the shell.
- ask
--
ask bjoern hansen, http://ask.netcetera.dk/ !try; do();
