Terminal - make it exit after running a command

Question

I am looking for a way to exit terminal after executing a command.
I have tried this sort of thing
Open Terminal.
File -> Save As...
Save as "My Command FIle"
Choose "Where". Desktop is easy to find. Move it later.....
Under "Execute this Command", put your command line in there.
example
ls -l >gj.out
ls -l >gj.out; exit
combinations of the above using different options under Terminal- Window Settings - Shell { Process, ..}
close on exit etc. have not worked for me.
I get the command to execute; however, it sits in terminal.
I need it to exit. ?

Answer 1

killall will kill every instance of Terminal running on the machine, not just the one that this script is running in. You might want to try as a test script:
ps auxwwww | egrep $(echo $PPID)
which, hopefully will list the Terminal that the script is running in. Then you can use the PPID (Parent Process ID) as an argument to kill to kill only your instance of Terminal.
Roger