在启动Linux时守护Perl脚本

Question

I have a custom version of CENTOS that I need to run a perl script as a daemon in at all times.

To do this I want to get it to run on startup as a daemon.

When the machine is on I can daemonize the script with the command

daemonize /var/myfolder/myscript.pl

And this works fine.

So I have an rc1 script which has a number of commands that run when the machine starts, and the very last line in it is where I try to daemonize that script. Everything else in the rc1 script runs fine, and the script doesn't output any errors, however when I check to see if the daemon is running on start up, it isn't running.

Is there another way that I can get the script to run on startup? Or any ideas on why this method doesn't work?

Answer 1

Proc::Daemon offers what you're looking for.

See this previously asked question: How can I run a Perl script as a system daemon in linux?

Answer 2

The problem was that @INC hadn't fully loaded all of the modules by the time my script was called, and so my daemon wasn't running. I used the PERL5LIB command to add the appropriate directories.

PERL5LIB='/perl:/custom/lib:/usr/local/lib64/perl5' /var/myfolder/myscript.pl &

where /perl ; /custom/lib and /usr/local/lib64/perl5 are the directories which were missing from @INC