09-24-2005
check if file is empty
How do I check if a file is empty in a sh script
I want to test in my shell script if the output file is empty and if it is do one thing and if it isnt empty do another?
any ideas?
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LEARN ABOUT DEBIAN
rabbitmq-env.conf
RABBITMQ-ENV.CONF(5) RabbitMQ Server RABBITMQ-ENV.CONF(5)
NAME
rabbitmq-env.conf - default settings for RabbitMQ AMQP server
DESCRIPTION
/etc/rabbitmq/rabbitmq-env.conf contains variable settings that override the defaults built in to the RabbitMQ startup scripts.
The file is interpreted by the system shell, and so should consist of a sequence of shell environment variable definitions. Normal shell
syntax is permitted (since the file is sourced using the shell "." operator), including line comments starting with "#".
In order of preference, the startup scripts get their values from the environment, from /etc/rabbitmq/rabbitmq-env.conf and finally from
the built-in default values. For example, for the RABBITMQ_NODENAME setting,
RABBITMQ_NODENAME
from the environment is checked first. If it is absent or equal to the empty string, then
NODENAME
from /etc/rabbitmq/rabbitmq-env.conf is checked. If it is also absent or set equal to the empty string then the default value from the
startup script is used.
The variable names in /etc/rabbitmq/rabbitmq-env.conf are always equal to the environment variable names, with the RABBITMQ_ prefix
removed: RABBITMQ_NODE_PORT from the environment becomes NODE_PORT in the /etc/rabbitmq/rabbitmq-env.conf file, etc.
# I am a complete /etc/rabbitmq/rabbitmq-env.conf file.
# Comment lines start with a hash character.
# This is a /bin/sh script file - use ordinary envt var syntax
NODENAME=hare
SEE ALSO
rabbitmq-server(1) rabbitmqctl(1)
EXAMPLES
# I am a complete /etc/rabbitmq/rabbitmq-env.conf file.
# Comment lines start with a hash character.
# This is a /bin/sh script file - use ordinary envt var syntax
NODENAME=hare
This is an example of a complete /etc/rabbitmq/rabbitmq-env.conf file that overrides the default Erlang node name from "rabbit" to "hare".
AUTHOR
The RabbitMQ Team <info@rabbitmq.com>
RabbitMQ Server 06/22/2012 RABBITMQ-ENV.CONF(5)