06-25-2009
Bash script to read a hostname and separate into variables
Hi All,
I'm trying to concoct a bash script to use with a Puppet Implementation that will accept a hostname and break it down into variables.
For example, my hostnames look like this --> machinename-group-building.example.com
I'm looking for a way in the script to read until the first hypen (run it like --> "/usr/bin/hostnamescript machinename-group.building.example.com"), and assign the "machinename" into a variable, read to the second hyphen and assign the "group" into a variable, and then read until the period and assign the "building" into the final variable - disregarding the rest.
What would be the easiest way to tackle this? Thanks!
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LEARN ABOUT DEBIAN
service
service(8) System Manager's Manual service(8)
NAME
service - run a System V init script
SYNOPSIS
service SCRIPT COMMAND [OPTIONS]
service --status-all
service --help | -h | --version
DESCRIPTION
service runs a System V init script in as predictable an environment as possible, removing most environment variables and with the current
working directory set to /.
The SCRIPT parameter specifies a System V init script, located in /etc/init.d/SCRIPT. The supported values of COMMAND depend on the
invoked script. service passes COMMAND and OPTIONS to the init script unmodified. All scripts should support at least the start and stop
commands. As a special case, if COMMAND is --full-restart, the script is run twice, first with the stop command, then with the start com-
mand.
service --status-all runs all init scripts, in alphabetical order, with the status command.
EXIT CODES
service calls the init script and returns the status returned by it.
FILES
/etc/init.d
The directory containing System V init scripts.
ENVIRONMENT
LANG, TERM
The only environment variables passed to the init scripts.
SEE ALSO
/etc/init.d/skeleton,
update-rc.d(8),
init(8),
invoke-rc.d(8).
Jan 2006 service(8)