Export command

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# 1  
Old 11-20-2007
Export command

Hi all,

Want to know what does export command do??
What is its functionality?

And on a shell prompt

$ echo $at

The variable above is it available to other script???
# 2  
Old 11-20-2007
It takes a local variable and makes it global.

Try running a script that calls a function or another script. If the secondary script or function sets a LOCAL variable, it is gone when that function of script returns to the parent. If that variable is exported, it is a GLOBAL variable that will remain.
# 3  
Old 11-20-2007
Hammer & Screwdriver

1:-Want to know what does export command do??
What is its functionality?

The Best way to approach .. Go for the man page of "export" and "env" command.

2:- $at=1
$ echo $at
The variable above is it available to other script???

NO, It will be only for that terminal/shell. But if you want use that variable into your another scripts. You must have export it.

# 4  
Old 11-20-2007
this might give you more insight
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