SPLAT CLI Idle
From FrogspawnWiki
To extend the idle timeout of a SPLAT CLI session these are your options:
CPShell
If you've logged in via CPShell then
IDLE 999
will set the idle timeout to 999 minutes
Bash
If you're in bash (expert mode) then
export TMOUT=99999999999
sets the timeout crazy high
Credit goes here for this knowledge.