--- a/stat.rst	Mon Mar 24 21:12:19 2014 +0200
+++ b/stat.rst	Tue Apr 01 19:05:48 2014 +0300
@@ -6,6 +6,93 @@
 =========================
 .. contents::
 
+Process list.
+=============
+
+Linux.
+------
+
+View current user process::
+
+  $ ps
+
+View all running process::
+
+  $ ps -e
+
+View process commands::
+
+  $ ps -e -o pid,cmd
+
+View detail process info::
+
+  $ ps -f <id>
+
+Kill process::
+
+  $ kill -s $SIG $PID
+
+View processes interactively::
+
+  $ htop
+
+Use ``-w``option for wide output. Use this option twice for unlimited width.
+
+Run as another user::
+
+  $ su - $user
+  $ command
+
+or::
+
+  $ sudo -u <user> -i <command>
+
+FreeBSD.
+--------
+
+View current user process::
+
+  $ ps
+
+View all running process::
+
+  $ ps -ax
+
+View detail process info::
+
+  $ ps -j <id>
+  $ ps -l <id>
+
+Windows.
+--------
+
+View all running process::
+
+  cmd> TaskList
+  Process Name                 PID Session Name     #Session       Memory
+  ========================= ====== ================ ======== ============
+  System Idle Process            0 Console                 0        28 KB
+  System                         4 Console                 0       236 KB
+  smss.exe                     592 Console                 0       432 KB
+  csrss.exe                    656 Console                 0     4 404 KB
+  winlogon.exe                 680 Console                 0     2 792 KB
+  services.exe                 724 Console                 0     3 260 KB
+
+View processes interactively::
+
+  cmd> taskmgr
+
+Kill process (TODO with which Windows version come?)::
+
+  cmd> tskill {<pid>|<name>}
+
+  cmd> taskkill /IM notepad.exe
+  cmd> taskkill /PID 827
+
+Run as another user::
+
+  $ runas /u: TODO XXX
+
 CPU consumption.
 ================