Archive for the tag 'Modules'

SBDavid
Jun 2nd, 2009

Kernel Modules

To find out what a particular driver/module does, the modinfo command can be used in many cases:

root@:~# modinfo -d i915
Intel Graphics

modinfo — program to show information about a Linux Kernel module

root@:~# modinfo -d soundcore
Core sound module

modinfo extracts information from the Linux Kernel modules given on the command line. If the module name is not a filename, then the /lib/modules/version directory is searched, as done by modprobe(8).

root@:~# modinfo -d ext3
Second Extended Filesystem with journaling extensions

To set parameters during module loads, you can add entries to /etc/modprobe.conf on RHEL or /etc/modprobe.conf.local on SLES.

SBDavid
May 6th, 2009

Installing Perl Modules

Installing Perl Modules.

Perl Modules can be obtained from the CPAN (Comprehensive Perl Archive Network) at http://search.cpan.org.

The easiest way to install Perl modules on Unix is to use the CPAN module. For example:

shell> perl -MCPAN -e shell
cpan> install DBI
cpan> install DBD::mysql

DBD::mysql is the Perl5 Database Interface driver for the MySQL database.

To find a particular module, use the i command, followed by an expression that you want to search for:

cpan> i /Time/

CPAN.pm will go out to the CPAN mirrror that you selected, download the list of modules, and tell you which ones match the search word.

To install a module, just type:

cpan> install Time::CTime

CPAN.pm takes care of the whole process. It downloads the compressed file, unpacks it, builds it, and installs it all for you, unless there is a problem with the installation process. If there are other modules on which this module relies, it will also download and install those.

« Prev