PS(1) PS(1) NAME ps, psu, pstree - process status SYNOPSIS ps [ -apnr ] psu [ -apnr ] [ user ] pstree DESCRIPTION Ps prints information about processes. Psu prints only information about processes started by user (default $user). For each process reported, the user, process id, user time, system time, size, state, and command name are printed. State is one of the following: Moribund Process has exited and is about to have its resources reclaimed. Ready on the queue of processes ready to be run. Scheding about to be run. Running running. Queueing waiting on a queue for a resource. Wakeme waiting for I/O or some other kernel event to wake it up. Broken dead of unnatural causes; lingering so that it can be examined. Stopped stopped. Stopwait waiting for another process to stop. Fault servicing a page fault. Idle waiting for something to do (kernel processes only). New being created. Pageout paging out some other process. Syscall performing the named system call. PS(1) PS(1) no resource waiting for more of a critical resource. The -n flag causes ps to print, after the process id, the note group to which the process belongs. The -r flag causes ps to print, before the user time, the elapsed real time for the process. The -p flag causes ps to print, after the system time, the baseline and current priorities of each process. The -a flag causes ps to print the arguments for the pro- cess. Newlines in arguments will be translated to spaces for display. Pstree prints the processes as a tree in a two-column layout where the first column being the process id and second col- umn the program name and arguments indented and prefixed with line drawing runes to reflect the nesting in the hier- archy. FILES /proc/*/status SOURCE /sys/src/cmd/ps.c /rc/bin/psu /sys/src/cmd/pstree.c SEE ALSO acid(1), db(1), kill(1), ns(1), proc(3) HISTORY Pstree first appeared in 9front (June, 2011).