What happens when a screen/tmux-like solution is needed (to leave a process running for a long time, but not with `nohup` because interaction could be needed) - but screen/tmux is not available on the given machine, and installing screen/compiling it isn't a solution? 

**Q: Are there any "short" perl scripts that can be generally (or not generally) used to achieve this goal (on Linux/AIX/etc.)?**

only this is needed: 

1. start the perl script
2. start the given thing that takes long time
3. de-attach from the terminal, ex.: because working notebook needs to be shut
down
4. **re-attach to the console** to see/control the started long running
process, just like in screen

Does anybody has a perl script like this?