setting a global variable in script

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1

Hi All,

I know to set global variable i can use export .. But take the situation like below ..

I want to set a variable in one script and access that in second script

i have done like this .. It is not working

one.sh
#!/usr/bin/ksh
echo $RISSHI
export RISSHI=1

two.sh
#!/usr/bin/ksh
echo $RISSHI
export RISSHI=2

the variable RISSHI is not changed to two when i run two.sh after one.sh
i tries to execute like . one.sh i got error...

Is there is way to share a variable between scripts?

Thanks,
Arun

2

Variables, or rather environment variables, belong to processes, not scripts, scripts change them but they exist with the process.

If you execute a script with "#!/bin/sh" it starts a new process to run the script in, hence a new set of environment variables, children will inherit the parent's exported variables but not the other way round.

The alternative is to run a script using "source" or ".". The down side of this is the script language has to be the same and the error handling must be consistent.

3

Hi Porter ..

Thanks for your reply ..
Buy i tried to run the script like
. one.sh

and tried to acess that value but the error i get was

ksh: one.sh: not found.

please let me know whatis the change i have to do

4

Try using a qualified path to "one.sh", either "./one.sh" or with the full directory prefixing it.