I just wrote a quick hack to check whether a daemon is running when it starts:

# quit if already running
if (-e "/var/run/process_email.pid") {
    my $pid=9999999999;
    `cat /var/run/process_email.pid` =~ /(\d+)/ and $pid=$1;
    exit if (`ps aux|awk '{print \$2}' |grep $pid`);
}

[download]

but I can't help thinking that there must be a more "perlish" way of doing this.

I did a quick search on CPAN, but I couldn't find a relevant module. Perhaps I was searching on the wrong term?

Anyone know if there's a standard way of doing this? Or is my hack similar to how others have approached this problem?

cLive ;-)

In reply to checking if daemon is running by cLive ;-)

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