Runs an executable file, not a script (but can “srun /bin/bash …”).

Runs the job in the foreground (and blocks unless you use “&”).

Job will end if you close your terminal, unless you redirect IO and disown the job.

srun hostname

srun -N3 hostname (runs on 3 different nodes)

srun -u bash -i

• Runs an interactive shell on a compute node.
• It's a little odd, but it does work.

srun can also be used to start “job steps” from within a script.