04-20-2011
This doesn't work because bash doesn't substitute twice. If you have a string with "$varname" in it, it won't go back and start over and realize you also wanted $varname to be evaluated, too!
To do that kind of doublethink, you have to stuff it into an eval.
ARGS="$(eval $stringwithvarinit)"
Beware that you can do anything in an eval. Someone could stuff an `rm -rf ~/` in your config file and it could run it.
This User Gave Thanks to Corona688 For This Post:
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LEARN ABOUT DEBIAN
dbconfig-load-include
dbconfig-load-include(1) dbconfig-common dbconfig-load-include(1)
NAME
dbconfig-load-include - parse custom format db config files
SYNOPSIS
dbconfig-load-include [-hv] [-a] [-d[varname]] [-u[varname]] [-p[varname]] [-s[varname]] [-P[varname]] [-t[varname]] -f format infile
DESCRIPTION
dbconfig-load-include is a program to parse custom format include files containing the information necessary to connect a program to a
database resource. This is primarily intended to be used by the dbconfig-common package to import database settings of packages with
pre-existing configurations that have migrated to dbconfig-common. for more information, please see /usr/share/doc/dbconfig-common.
OPTIONS
infile use the given config file as input
-f|--format
use the given output format (default: sh)
-a|--all
include all information in output (default)
-d|--dbname
include the dbname in the output
-p|--dbpass
include the dbpass in the output
-s|--dbserver
include the dbserver in the output
-P|--dbport
include the dbport in the output
-u|--dbuser
include the dbuser in the output
-t|--dbtype
include the dbtype in the output
-h|--help
display this helpful message
-v|--version
output the version and exit
format is one of a list of include-file style formats for various programming languages. the current list includes:
sh /bin/sh style include file
perl perl parseable include file
php php parseable include file
exec run the file as a script and interpret its output
sean finney March 2005 dbconfig-load-include(1)