I'm wanting this script to print 1,2,3.. without the use of functions, just execute two.sh then carry on where it left off, is it possible?
[root@server:~]# cat testing.sh
#!/bin/bash
echo "1"
exec ./two.sh
echo "3"
[root@server:~]# cat two.sh
#!/bin/bash
echo "2"
return
exec, if you give it a program name a, will replace the current program with whatever you specify.
If you want to just run the script (in another process) and return, simply use:
./two.sh
to do that.
For this simple case, you can also execute the script in the context of the current process with:
. ./two.sh
That will not start up a new process but will have the side-effect of allowing two.sh to affect the current shell's environment. While that's not a problem for your current two.sh (since all it does is echo a line), it may be problematic for more complicated scripts (for example, those that set environment variables).
a Without a program name, it changes certain properties of the current program, such as:
exec >/dev/null
which simply starts sending all standard output to the bit bucket.
Sure, just run:
echo "1"
./two.sh
echo "3"
