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Full Discussion: Pulling Parms from Config File
Top Forums UNIX for Dummies Questions & Answers Pulling Parms from Config File Post 302753943 by Corona688 on Wednesday 9th of January 2013 04:44:01 PM
Old 01-09-2013
Do you get to pick what your config file looks like? I'd have a config file like this:

Code:
DayOfWeek=Fri
SomethingElse=whatever

...which you could load directly just by doing . /path/to/configfile Note the space between the dot and the file. Dot is an operarator here, for 'source', which runs lines from that file in your own script.

If you're stuck with a config file like that one though, I might try this:
Code:
while read VAR VALUE
do
        if [ ! -z "$VAR" ]
        then
                read $VAR <<EOF
$VALUE
EOF
        fi
done < configfile

The trick is, read takes a variable name. So VAR=ABCD ; read $VAR reads into the ABCD variable.
 

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LEARN ABOUT MINIX

config.guess

CONFIG.GUESS(1) 						   User Commands						   CONFIG.GUESS(1)

NAME

       config.guess - guess the build system triplet

SYNOPSIS

       config.guess [OPTION]

DESCRIPTION

       The GNU build system distinguishes three types of machines, the `build' machine on which the compilers are run, the `host' machine on which
       the package being built will run, and, exclusively when you build a compiler, assembler etc., the `target' machine, for which the  compiler
       being built will produce code.

       This script will guess the type of the `build' machine.

       Output the configuration name of the system `config.guess' is run on.

   Operation modes:
       -h, --help
	      print this help, then exit

       -t, --time-stamp
	      print date of last modification, then exit

       -v, --version
	      print version number, then exit

ENVIRONMENT VARIABLES

       config.guess  might  need  to  compile  and  run  C  code,  hence it needs a compiler for the `build' machine: use the environment variable
       `CC_FOR_BUILD' to specify the compiler for the build machine.  If `CC_FOR_BUILD' is not specified, `CC' will be used.  Be sure  to  specify
       `CC_FOR_BUILD' is `CC' is a cross-compiler to the `host' machine.

	 CC_FOR_BUILD	 a native C compiler, defaults to `cc'
	 CC		 a native C compiler, the previous variable is preferred

REPORTING BUGS

       Report bugs and patches to <config-patches@gnu.org>.

       Originally written by Per Bothner.
       Copyright 1992-2016 Free Software Foundation, Inc.

       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

SEE ALSO

       autoconf(1), automake(1), autoreconf(1), autoupdate(1), autoheader(1), autoscan(1), config.guess(1), config.sub(1), ifnames(1), libtool(1).

GNU Autoconf 2.69						    August 2017 						   CONFIG.GUESS(1)
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