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Fredstar

09-03-2008 12:40 PM

Bash String help

Hi All,

I'm not very good with bash so i need some help.
Is it possible to execute an application in bash that returns a string. And is it possible to capture the returned string in bash?

For example

Code:

#!/bin/bash

exec some_app;

If some app returns a string is there a way for me to grab it?

thanks

CRC123

09-03-2008 12:58 PM

There is no explicit way to return a string, but the next best thing is using echo at the end of a function/script and then capturing the output of the function/script in a variable:

yourFunction.sh

Code:

#!/bin/bash

...

stuff you need to do with all output suppressed

...

echo <return string>

callYourFunction.sh

Code:

#!/bin/bash

...

myVariable=`yourFunction.sh`

# or

myVariable=$(yourFunction.sh)

...

# use $myVariable

exit

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