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Full Discussion: what does the $$ do?
Top Forums Shell Programming and Scripting what does the $$ do? Post 302090932 by vgirijanaidu on Thursday 28th of September 2006 07:42:20 AM
Old 09-28-2006
what does the $$ do?

Could anyone please help me out with understanding what thhe following bit does:

A = ${B}.{C}.$$

and later on in the script

java abc ${A}

WHat does A equal to?

Thanks so much
V
 
AIRPORT-CONFIG(1)					      General Commands Manual						 AIRPORT-CONFIG(1)

NAME
airport-config - Configurator for the original Apple AirPort Base Station ("Graphite") and the Lucent RG-1000 base station SYNOPSIS
airport-config DESCRIPTION
airport-config allows you to manage your AirPort base station, just like the AirPort software on Mac OS X. OPTIONS
airport-config accepts no command-line options. airport-config is a wrapper script around the AirportBaseStationConfigurator.jar jar file located in /usr/share/java/airport-utils. You can set the JAVACMD environment variable to use a specific JVM instead of the one chosen by the wrapper script. Set the DEBUG environ- ment variable to 1 to get the debug output from the wrapper script. ENVIRONMENT VARIABLES
DEBUG Set this variable to 1 to get the debug output from the wrapper script. JAVACMD The full path to the Java Virtual Machine to use. By default, the wrapper uses JAVACMD; if it is not set, it looks for JAVA_BINDIR/java, then for JAVA_HOME/bin/java before looking for a java executable in the PATH. In the latter case, the JVM used can be configured using the Debian alternatives system (see update-alternatives(8)). JAVA_HOME The full path where your JDK/JRE is installed. JAVA_BINDIR The full path to the directory where the java executable is located. JAVA_ARGS Extra command-line arguments to be passed to the Java Virtual Machine. AUTHOR
airport-config was written by Jon Sevy <jsevy@cs.drexel.edu>. This manual page was written by Julien BLACHE <jblache@debian.org>, for the Debian project (but may be used by others). May 20, 2006 AIRPORT-CONFIG(1)
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