PS(1)

NAME
 - Report process status

SYNOPSIS
ps [-aefls] [-u UID]

OPTIONS

-a, --all
    show processes of all users

-e, --everyone
    show processes of all users

-f, --full
    show process uids, ppids

-h, --help
    output usage information and exit

-l, --long
    show process uids, ppids, pgids, winpids

-p, --process
    show information for specified PID

-s, --summary
    show process summary

-u, --user
    list processes owned by UID

-v, --version
    output version information and exit

-W, --windows
    show windows as well as cygwin processes

With no options, ps outputs the long format by default

DESCRIPTION
The ps program gives the status of all the Cygwin processes running on the system (ps = "process status"). Due to the limitations of simulating a POSIX environment under Windows, there is little information to give.

 The PID column is the process ID you need to give to the kill command. The PPID is the parent process ID, and PGID is the process group ID. The WINPID column is the process ID displayed by NT's Task Manager program. The TTY column gives which pseudo-terminal a process is running on, or a '?' for services. The UID column shows which user owns each process. STIME is the time the process was started, and COMMAND gives the name of the program running. Listings may also have a status flag in column zero; S means stopped or suspended (in other words, in the background), I means waiting for input or interactive (foreground), and O means waiting to output.

 By default, ps will only show processes owned by the current user. With either the -a or -e option, all user's processes (and system processes) are listed. There are historical UNIX reasons for the synonomous options, which are functionally identical. The -f option outputs a "full" listing with usernames for UIDs. The -l option is the default display mode, showing a "long" listing with all the above columns. The other display option is -s, which outputs a shorter listing of just PID, TTY, STIME, and COMMAND. The -u option allows you to show only processes owned by a specific user. The -p option allows you to show information for only the process with the specified PID. The -W option causes ps show non-Cygwin Windows processes as well as Cygwin processes. The WINPID is also the PID, and they can be killed with the Cygwin kill command's -f option.

COPYRIGHT
Cygwin is Copyright (C) 1995-2010 Red Hat, Inc.

Cygwin is Free software; for complete licensing information, refer to: http://cygwin.com/licensing.html

SEE ALSO
The full documentation to the Cygwin API is maintained on the web at: http://cygwin.com/cygwin-api/cygwin-api.html The website is updated more frequently than the man pages and should be considered the authoritative source of information.