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htop(1) 				      Utils					  htop(1)

       htop - interactive process viewer


       This program is a free (GPL) ncurses-based process viewer.

       It is similar to top, but allows to scroll the list vertically and horizontally to see all
       processes and their full command lines.

       Tasks related to processes (killing, renicing) can be done without entering their PIDs.

       The following flags are supported:

       -d DELAY
	      Delay between updates, in tenths of seconds

       -u USERNAME
	      Show only processes of a given user

       --sort-key COLUMN
	      Sort by this column (use --sort-key help for a column list)

       The following commands are supported:

       Arrows, PgUP, PgDn, Home, End
	    Scroll process list.

	    "Tag": mark a process. Commands that can operate on multiple processes, like  "kill",
	    will  then	apply  over  the list of tagged processes, instead of the currently high-
	    lighted one.

       U    "Untag" all processes (remove all tags added with the Space key).

       s    Trace process system calls: if strace(1) is installed, pressing this key will  attach
	    it to the currently selected process, presenting a live update of system calls issued
	    by the process.

       l    Display open files for a process: if lsof(1) is installed,	pressing  this	key  will
	    display the list of file descriptors opened by the process.

       F1, h
	    Help screen

       F2, S
	    Setup screen. There you can configure meters displayed on the top side of the screen,
	    as well as set various display options, choose among color	schemes  and  select  the
	    layout of the displayed columns.

       F3, /
	    Incremental  process search: type in part of a process command line and the selection
	    highlight will be moved to it. While in search mode, pressing  this  key  will  cycle
	    through matching occurrences.

       F4, I
	    Invert sort order: if sort order is increasing, switch to decreasing, and vice-versa.

       F5, t
	    Tree view: organize processes by parenthood, and layout the relations between them as
	    a tree. Toggling the key will switch between tree and your previously  selected  sort
	    view. Selecting a sort view will exit tree view.

       F6, >
	    Select field for sorting. The sort field is indicated by a highlight in the header.

       F7, ], -
	    Increase selected process priority (subtract from 'nice' value).  This can be done by
	    the superuser only.

       F8, [, +
	    Decrease selected process priority (add to 'nice' value)

       F9, k
	    "Kill" process: sends a signal which is selected in a menu, to one or a group of pro-
	    cesses.  If processes were tagged, sends the signal to all tagged processes.  If none
	    is tagged, sends to the currently selected process.

       F10, q

       +, - When in tree view mode, expand or collapse subtree. When a subtree is collapsed a "+"
	    sign shows to the left of the process name.

       a (on multiprocessor machines)
	    Set CPU affinity: mark which CPUs a process is allowed to use.

       u    Show only processes owned by a specified user.

       M    Sort by memory usage (top compatibility key).

       P    Sort by processor usage (top compatibility key).

       T    Sort by time (top compatibility key).

       F    "Follow"  process: if the sort order causes the currently selected process to move in
	    the list, make the selection bar follow it. This is useful for monitoring a  process:
	    this  way,	you  can  keep a process always visible on screen. When a movement key is
	    used, "follow" loses effect.

       K    Hide kernel threads: prevent the threads belonging the kernel to be displayed in  the
	    process list. (This is a toggle key.)

       H    Hide user threads: on systems that represent them differently than ordinary processes
	    (such as recent NPTL-based systems), this can hide threads from  userspace	processes
	    in the process list. (This is a toggle key.)

	    Refresh: redraw screen and recalculate values.

	    PID search: type in process ID and the selection highlight will be moved to it.

       htop is developed by Hisham Muhammad <loderunner@users.sourceforge.net>.
       This man page was written by Bartosz Fenski <fenio@o2.pl> for the Debian GNU/Linux distri-
       bution (but it may be used by others), and updated by Hisham Muhammad.

Bartosz Fenski <;fenio@o2.pl>		       0.9					  htop(1)
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