How to compile or debug line by line in shell script?

Shell Programming and Scripting
1

I know about bash -x, set -x and -v but disappears from Command Line Interface in fraction of second ......

I am looking for a command or script ..complies each line and shows the output after executing each line ....( similar what we have in C )

Thanks in Advance

2

One sloution to have something like this is to copy code fragment by code fragment or line by line and paste it in an interactive shell and see result .
But in my humble experience this won't fit for any kind of code design it fits for top down approach if your code contains a lot of jumping then this won't work

3

BASH Debugger