PS(1) CYGWIN PS(1)NAME
- Report process status
SYNOPSISps [-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 simulat‐
ing 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 com‐
mand. 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 Man‐
ager 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 COM‐
MAND 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 syn‐
onomous options, which are functionally identical. The -f option out‐
puts a "full" listing with usernames for UIDs. The -l option is the
default display mode, showing a "long" listing with all the above col‐
umns. 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.
April 2010 PS(1)
