Calling a ksh script from within a ksh script

[penguino888]

So Im trying to assign variables in the script child.sh and return their value to parent.sh but when I enter child.sh I never hit the next line in parent.sh. Is something wrong with my thinking/syntax here?

<child.sh>
#!/bin/ksh
test1()
{
a=foo
b=bar
export a b
}

case "$1" in
test1)
   test1
   ;;
esac
</child.sh>

<parent.sh>
#!/bin/ksh
. ./child.sh test1
c=$a$b
</parent.sh>

[Thrillhouse]

You forgot the "sha" in the "shabang":

<child.sh>
#!/bin/ksh
a=foo
b=bar
export a b
</child.sh>

<parent.sh>
#!/bin/ksh
. ./child.sh
c=$a$b
</parent.sh>

[penguino888]

You forgot the "sha" in the "shabang":

<child.sh>
#!/bin/ksh
a=foo
b=bar
export a b
</child.sh>

<parent.sh>
#!/bin/ksh
. ./child.sh
c=$a$b
</parent.sh>

Good point! The actual code has the "sha". Edited example.

[Thrillhouse]

Then what's the problem? That code works fine for me. I added one minor change:

#!/bin/ksh
. ./child.sh
c=$a$b
echo $c

and got the following output:

[root@venus ~]# ./parent.sh
foobar

[penguino888]

Ok my quick and dirty example was too dirty, this is more representative. The problem is 'a' and 'b' are never making it out of the function test1.

EDITED Original Code.

[Thrillhouse]

In the future, don't go back to your original post and edit the code, just put it in your next post so that someone reading the thread can understand your progress.

Can you give us a little more information about the script? What are you trying to accomplish? How are you calling the script?

I still don't see much wrong:

[root@venus ~]# ./parent.sh test1
foobar
[root@venus ~]# ./parent.sh blah

[root@venus ~]#

[penguino888]

Arghhh!!! I found the problem, it was the line in bold below that was causing it, exit 0 returns and wipes out all my variables I suppose.

<child.sh>
#!/bin/ksh
test1()
{
a=foo
b=bar
export a b
}

case "$1" in
test1)
test1
;;
esac
exit 0
</child.sh>

<parent.sh>
#!/bin/ksh
. ./child.sh test1
c=$a$b
</parent.sh>
--------------------------------------------------------------------------------
Last edited by penguino888; 27 Minutes Ago at 07:00 PM

[Thrillhouse]

Yup, that would do it. Glad you figured it out.

As good practice you should include a default case in your case statement for erroneous input. Like:

case "$1" in
test1)
test1
;;
test2)
test2
;;
*)
exit 0
;;
esac