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Old 07-23-2005, 01:33 AM   #1
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bash programming

Hi ...
I want to create ascript that can read and modify a environmental variable... Cn u help me a little?
For example
sh myscript
a has value 2
changing a
a has value 3

After the script has stopeed executing i want to read the new value of a .... Any good suggestion? Thx a lot
Old 07-23-2005, 01:52 AM   #2
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You cannot do this in the way you have described. A script can only change variables in its own environment, which are then inherited by children, but leave parents unaffected. The closest you can get is this:
export a=NEW_VALUE
$ source
You can also use a single '.' (dot) as a shortcut for source, like so:
$ .
Old 07-23-2005, 01:52 AM   #3
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want to create ascript that can read and modify a environmental variable... Cn u help me a little?
For example
What have you tried so far?



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