ref: 278caaf11931ec0c71fc13fd4c4794fae325c404
dir: /sys/man/1/ps/
.TH PS 1 .SH NAME ps, psu, pstree \- process status .SH SYNOPSIS .B ps [ .B -apnr ] .PP .B psu [ .B -apnr ] [ .I user ] .PP .B pstree .SH DESCRIPTION .I Ps prints information about processes. .I Psu prints only information about processes started by .I user (default .BR $user ). .PP 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: .TP \w'\fLno\ \fIresource\ \ \ 'u .B Moribund Process has exited and is about to have its resources reclaimed. .TP .B Ready on the queue of processes ready to be run. .TP .B Scheding about to be run. .TP .B Running running. .TP .B Queueing waiting on a queue for a resource. .TP .B Wakeme waiting for I/O or some other kernel event to wake it up. .TP .B Broken dead of unnatural causes; lingering so that it can be examined. .TP .B Stopped stopped. .TP .B Stopwait waiting for another process to stop. .TP .B Fault servicing a page fault. .TP .B Idle waiting for something to do (kernel processes only). .TP .B New being created. .TP .B Pageout paging out some other process. .TP .I Syscall performing the named system call. .TP .BI no " resource waiting for more of a critical .IR resource . .PD .PP The .B -n flag causes .I ps to print, after the process id, the note group to which the process belongs. .PP The .B -r flag causes .I ps to print, before the user time, the elapsed real time for the process. .PP The .B -p flag causes .I ps to print, after the system time, the baseline and current priorities of each process. .PP The .B -a flag causes .I ps to print the arguments for the process. Newlines in arguments will be translated to spaces for display. .PP .I Pstree prints the processes as a tree in a two-column layout where the first column being the process id and second column the program name and arguments indented and prefixed with line drawing runes to reflect the nesting in the hierarchy. .SH FILES .B /proc/*/status .SH SOURCE .B /sys/src/cmd/ps.c .br .B /rc/bin/psu .br .B /sys/src/cmd/pstree.c .SH "SEE ALSO" .IR acid (1), .IR db (1), .IR kill (1), .IR ns (1), .IR proc (3) .SH HISTORY .I Pstree first appeared in 9front (June, 2011).