Suspend the execution of this shell until it receives a SIGCONT signal.

      suspend [-f]
   -f   Do not complain if this is a login shell; just suspend anyway.

The return status is 0 unless the shell is a login shell and -f is not supplied, or if job control is not enabled.

This is a BASH shell builtin, to display your local syntax from the bash prompt type: help suspend

“Suspense is worse than disappointment” ~ Robert Burns

Related linux commands:

fg – Send job to foreground
bg – Send to background
jobs – List active jobs
logout – Exit a login shell

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