CosmOS
> Edit hello.asm
hello.asm, 31 lines
> q
> Edit hello.asm
hello.asm, 31 lines
> q
> Status
the last program left 0, which is: it did what it was asked
> Edit long.txt
a line in it is longer than this can edit, so it has not been opened
> Status
the last program left 1, which is: it did not
> exit
halted
Execution halted.
[exit 0]