03-16-2012
And what happens when no agruments are given?
I suppose you would like to do the thing properly no?
So start testing positional parameters...
Then include exit with messages:
e.g. " expecting only one argument" or if none given "error missing argument " you can even display "usage: blablah "
Next what are those $ signs in 1rst position? (Artefact I hope...)
Then extra clue for the test you displayed: How do you show the content of a variable?...
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LEARN ABOUT SUSE
ifcfg-wireless
IFCFG(5) Network configuration IFCFG(5)
NAME
ifcfg-wireless - wireless LAN network interface configuration
SYNOPSIS
/etc/sysconfig/network/ifcfg-wlan-*
/etc/sysconfig/network/ifcfg-type-wlan
GENERAL
Wireless networks need some additional configuration data compared to ethernet ones. Therefore additional variables for ifcfg files were
introduced. All wireless LAN specific variables are described in the ifcfg template file /etc/sysconfig/network/ifcfg.template. It is pos-
sible to configure more than one wireless network accepted for association. To achieve this add suffix _1 to all wireless variables for the
second network, _2 for the this, and so on. Example: WIRELESS_ESSID_1="second_net" You can have up to ten wireless networks configured.
Some wireless variables are not applicable to a single wireless network but are global to the interface. The description of the variable
points this out.
BUGS
Please report bugs at <http://www.suse.de/feedback>
AUTHOR
Christian Zoz <zoz@suse.de> -- ifup script
Michal Svec <msvec@suse.cz> -- ifup script
Bjoern Jacke -- ifup script
Mads Martin Joergensen <mmj@suse.de> -- ifup manual page
Michal Ludvig <mludvig@suse.cz> -- tunnel support
Joachim Gleissner <jg@suse.de> -- wireless support
SEE ALSO
ifup(8).
sysconfig December 2005 IFCFG(5)