true

Runs on:

QNX Neutrino, Microsoft Windows

Options:

None.

Description:

The true utility does nothing but exit immediately with a zero exit code.

The true utility is typically used in shell scripts. One common application is to create an infinite loop, as in:

while true
do
   myprogram
   sleep 300
done

which runs myprogram every five minutes (300 seconds) until the shell script is interrupted.

The shell has a builtin true command; see ksh. To make sure you use the executable, specify the full path.

Exit status:

0