why set environment variables in scripts?

Question

I see many add export JAVA_HOME=/usr/local/java/ to their bash script. Can someone tell me why this is necessary and what will happen if I don't do it? JAVA_HOME is already set in my .bashrc. Why should I specify this again in my script?

Thanks for any help to this newbee...

Satish · Accepted Answer · 2013-01-15 19:02:25Z

2

because you may be starting a new shell #!/bin/sh may be your first line of the script. Check if you are starting bash in the first line of script.

answered Jan 15, 2013 at 19:02

Satish

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2 Comments

user1164061 Over a year ago

I am doing that. So my settings in .bashrc wont be remembered by this new shell?

Satish Over a year ago

what is your first line? #!/bin/bash?

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