Thursday, February 21, 2013

Execute one line command on IRB or Rails's console through Unix shell

Basic Unix approach - echo and pipe:
$ echo "<command>" | irb
For example,
$ echo "1 + 1" | irb
1 + 1
2
You can change irb to rails console to execute that command in the Rails environment.

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Collectd PostgreSQL Plugin

I couldn't find this link when searching with google https://www.collectd.org/documentation/manpages/collectd.conf.html#plugin-postgresq...