Setting env variables using script

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1

Hi,

I wrote two small scripts to set env variables in a shell.

java_env.csh

#!/bin/csh -fn
setenv JAVA_HOME '/scratch/software/jdk1.5.0_11'
setenv PATH $PATH':'$JAVA_HOME'/bin'

and run it using csh ./java_env.csh

But the env variables are not set. I tried running each line on the shell window directly and I can see the variables being set.

I also tried java_env.sh

#!/bin/sh -n
set JAVA_HOME='/scratch/software/jdk1.5.0_11'
set PATH=$PATH':'$JAVA_HOME'/bin'

This as well didn't work.

Please suggest.

thanks
Amod

2 
source ./java_env.csh
. ./java_env.sh
3

Thanks for the help.

source ~/Desktop/java_env.csh worked for me.

Though for sh I got this error
. ~/Desktop/java_env.sh
/bin/.: Permission denied.

Could you please provide pointers on the usage.

-- Amod

4 
#!/bin/sh -n
set JAVA_HOME='/scratch/software/jdk1.5.0_11'
set PATH=$PATH':'$JAVA_HOME'/bin'

Why exactly do you have quotes?
Why do you have '-n'?

5

Without the quotes it was not working for the csh script. I carried the script to sh.

Could you help me understand why?

Also help me understand why $ csh ~/Desktop/java_env.csh does not work but $ source ~/Desktop/java_env.csh works?

From my sh script i tried removing ' but still the same problem.

I removed the -n flag but no luck.

6 
#!/bin/sh
JAVA_HOME='/scratch/software/jdk1.5.0_11'
PATH=$PATH:$JAVA_HOME/bin