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Old 07-30-2014, 06:29 PM   #1
Registered: Nov 2013
Posts: 31

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Trouble Setting JAVA_HOME environment variable for tcsh shell


thank you in advance,

I am in need of setting three environment variables in my Linux server under the .cshrc profile for tcsh shell.

So here is what I have so far

setenv PATH home/usr/usc/jdk/1.7.0_65/:${JAVA_HOME}
setenv PATH home/usr/usc/jdk/1.7.0_65/bin:${PATH}
setenv PATH ${ANT_HOME}:/auto/rcf-proj/sa1/software

but this gives the error "JAVA_HOME undefined variable"

so I need to create an environment variable JAVA_HOME to point to the java director
and create a PATH variable that points to the bin.

lastly I need a third environment variable $ANT_HOME$ created as well..

how do I do this??

thank you in advance

Old 07-30-2014, 10:38 PM   #2
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Registered: Sep 2010
Location: Wellington, New Zealand
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On tcsh, variables are set like this:

set JAVA_HOME=/path/to/java
So place that someplace before you attempt to use ${JAVA_HOME}

Here is how I set my paths in .cshrc:

set path = ($path $HOME/bin /opt/jdk/1.8/${JAVA_HOME})
I am pretty sure you have the wrong path in your example. I could be wrong, but I've never seen a system set up with home/usr/usc/blah before. You probably mean /usr/home/usc/blah

You are also re-defining PATH three times. You don't really mean to do that. THis is more like what I imagine you want:

set JAVA_HOME=/path/to/java
set ANT_HOME=/path/to/ant
set path = ($path $HOME/bin /usr/home/usc/jdk/1.7.0_65/${JAVA_HOME} ${ANT_HOME}/auto/rcf-proj/sa1/software)
You may want to see if you have BASH installed. In my opinion, it has a lot of really nice features that make the shell a much more fun place to be, and most Linux tutorials are written with it in mind. Nothing against TCSH (I use it at work daily) but BASH is kinda nice!



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