NAME
whowatch - console, interactive, process and users monitoring tool.
DESCRIPTION
Whowatch is an console, interactive users and process monitoring tool.
It displays information about the users currently logged on to the
machine, in real-time. Besides standard informations (login name, tty,
host, user’s process), the type of the connection (ie. telnet or ssh)
is shown. Display of users command line can be switch to tty idle
time. Certain user can be selected and his processes tree may be
viewed as well as tree of all system processes. Tree may be displayed
with additional column that shows owner of each process. In the
process tree mode SIGINT and SIGKILL signals can be sent to the
selected process. Killing processes is just as simple and fun as
deleting lines on the screen.
Whowatch has no command line options or configuration file. All
actions are performed in real time by pressing following keys:
Users list mode:
’up’ ’down’
cursor movement
’i’ toggle between user command line and idle time
’c’ full command line on/off. Disabling full command line can save
CPU time. It can give you also some additional information
about process executable.
’enter’
view selected user’s processes tree.
’t’ all system processes (init tree)
Tree mode:
’up’ ’down’
cursor movement
’enter’
go back to users list
’o’ show processes owners
’c’ full command line on/off. Disabling full command line can save
CPU time. It can give you also some additional information
about process executable.
’Ctrl-I’
send INT signal to selected process
’Ctrl-K’
send KILL signal to selected process
PLUGINS
Whowatch has ability to load plugin during program run. Plugin prints
information inside details window. Plugins gives flexibility: if some
specific information about process, user or system is needed then
separate program could be written to obtain such information. Since
there are three kinds of deatils window (process, user and system)
maximum three plugins can be loaded. Whowatch has very simple API to
write plugins.
FILES
Program reads /var/log/wtmp, /var/run/utmp. Under Linux program also
reads files from /proc directory. Without read access to these files
whowatch funcionality will be limited or program will not even start.
SEE ALSO
finger(1) ps(1), pstree(1), top(1), w(1), lsof(8), kill(1) killall(1)
BUGS
Because lack of ut_pid in utmp and wtmp structures in *BSD systems,
program tries to obtain pid of a login shell by analizing processes
controlling terminal and processes names. Under some conditions it may
lead to incorrect results ie. there will be incorrect processes tree
associated with user’s session.
AUTHOR
Michal Suszycki <mike@wizard.ae.krakow.pl>,
http://wizard.ae.krakow.pl/~mike
Tree functions written by Jan Bobrowski <jb@wizard.ae.krakow.pl>,
http://wizard.ae.krakow.pl/~jb
27 Feb 2000