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htop - an interactive process viewer
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Michael McConville 4b780a3499 A few more OpenBSD fixes 
Namely:

 o use malloc where an xCalloc slipped in

 o safeguard against an empty arg list - I don't think it's possible,
   but it would be potentially exploitable

 o we need to initialize the arg string to an empty string because we no
 longer use strlcpy(3)

 o annotate a tricky use of strlcpy(3)'s truncation
 		2016-03-05 23:38:12 -05:00
darwin Run through all command line arguments on Darwin. 2016-02-18 23:45:17 -02:00
freebsd Fix low CPU usage reporting in FreeBSD 2016-02-26 23:23:27 -05:00
linux any of these values may wrap 2016-02-29 21:57:03 -03:00
openbsd A few more OpenBSD fixes 2016-03-05 23:38:12 -05:00
scripts Sorry about the mega-patch. 2015-01-21 23:27:31 -02:00
unsupported Make unsupported platform build again. 2016-02-14 11:45:47 -02:00
.editorconfig add editorconfig file to give hints to editors 2015-10-05 11:13:17 +02:00
.gitignore remove autoconf files, generate by autogen.sh 2015-07-15 09:30:38 +02:00
.travis.yml travis-ci should really detect autogen.sh... 2015-11-19 13:14:20 -02:00
AUTHORS Initial import. 2006-03-04 18:16:49 +00:00
Action.c Add "p" to Help 2016-03-01 00:57:09 +01:00
Action.h 'e' displays environment of current process 2015-12-02 23:26:00 +01:00
Affinity.c Portable affinity using hwloc 2016-02-14 19:57:29 -02:00
Affinity.h Portable affinity using hwloc 2016-02-14 19:57:29 -02:00
AffinityPanel.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
AffinityPanel.h Sorry about the mega-patch. 2015-01-21 23:27:31 -02:00
AvailableColumnsPanel.c Do not trust isalpha(c) for values > 255. 2015-03-23 18:14:35 -03:00
AvailableColumnsPanel.h Sorry about the mega-patch. 2015-01-21 23:27:31 -02:00
AvailableMetersPanel.c Improve feedback when moving meters. 2015-08-27 19:14:13 -03:00
AvailableMetersPanel.h Sorry about the mega-patch. 2015-01-21 23:27:31 -02:00
BatteryMeter.c Rename String to StringUtils. 2015-08-19 13:45:20 -03:00
BatteryMeter.h Move platform-dependent parts of Linux battery meter. 2014-11-27 21:04:57 -02:00
COPYING Resolve license incompatibility issues, 2010-02-24 21:13:45 +00:00
CPUMeter.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
CPUMeter.h Calculate CPU averages on Darwin (See #295). 2015-10-23 13:46:21 -02:00
CRT.c Fix behavior of ESC key, getting rid of the annoying delay. 2016-02-19 13:38:02 -02:00
CRT.h Fix behavior of ESC key, getting rid of the annoying delay. 2016-02-19 13:38:02 -02:00
CategoriesPanel.c handle clicks on panel header line 2015-03-24 23:12:43 -03:00
CategoriesPanel.h Sorry about the mega-patch. 2015-01-21 23:27:31 -02:00
ChangeLog Final touches to ChangeLog 2016-02-10 18:48:39 -02:00
CheckItem.c Avoid future confusions with how default values are set. 2015-08-12 17:29:32 -03:00
CheckItem.h Avoid future confusions with how default values are set. 2015-08-12 17:29:32 -03:00
ClockMeter.c get a useful tolal for clock meter 2015-08-28 10:15:00 +02:00
ClockMeter.h Changes in object model: separate class objects to store vtable. Also, nicer UTF-8 display of big numbers. 2012-12-05 15:12:20 +00:00
ColorsPanel.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
ColorsPanel.h Make the implementation of color schemes declarative. 2015-02-03 22:30:05 +01:00
ColumnsPanel.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
ColumnsPanel.h Sorry about the mega-patch. 2015-01-21 23:27:31 -02:00
DisplayOptionsPanel.c Try to make threads less confusing. 2016-02-02 16:39:08 +01:00
DisplayOptionsPanel.h Changes in object model: separate class objects to store vtable. Also, nicer UTF-8 display of big numbers. 2012-12-05 15:12:20 +00:00
EnvScreen.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
EnvScreen.h refactor *Screen classes, add InfoScreen superclass 2016-01-12 06:00:58 -02:00
FunctionBar.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
FunctionBar.h Simplify constructors. 2015-03-23 19:24:34 -03:00
Hashtable.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
Hashtable.h major header cleanup 2011-12-26 21:35:57 +00:00
Header.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
Header.h Fix saving of header states, motion in Setup screen. 2015-03-16 23:01:21 -03:00
HostnameMeter.c BUGFIX: Fix crash when adding meters and toggling detailed CPU time. 2014-01-16 01:40:47 -02:00
HostnameMeter.h Changes in object model: separate class objects to store vtable. Also, nicer UTF-8 display of big numbers. 2012-12-05 15:12:20 +00:00
INSTALL Initial import. 2006-03-04 18:16:49 +00:00
IncSet.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
IncSet.h incremental search and filter reintegrated! 2015-03-23 17:04:53 -03:00
InfoScreen.c Fix behavior of ESC key, getting rid of the annoying delay. 2016-02-19 13:38:02 -02:00
InfoScreen.h refactor *Screen classes, add InfoScreen superclass 2016-01-12 06:00:58 -02:00
ListItem.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
ListItem.h Sorry about the mega-patch. 2015-01-21 23:27:31 -02:00
LoadAverageMeter.c Array entries have been oddly flipped here for years. 2015-11-23 03:46:43 -02:00
LoadAverageMeter.h Changes in object model: separate class objects to store vtable. Also, nicer UTF-8 display of big numbers. 2012-12-05 15:12:20 +00:00
MainPanel.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
MainPanel.h incremental search and filter reintegrated! 2015-03-23 17:04:53 -03:00
Makefile.am Force -lgcov harder when running `make coverage`. 2016-02-19 13:40:21 -02:00
MemoryMeter.c use dynamic units for text display 2015-08-27 06:13:27 +02:00
MemoryMeter.h Changes in object model: separate class objects to store vtable. Also, nicer UTF-8 display of big numbers. 2012-12-05 15:12:20 +00:00
Meter.c Avoid crash on huge screens. 2016-02-02 23:20:11 +00:00
Meter.h New macro GRAPH_HEIGHT for Graph Meter height 2016-01-21 10:11:54 +08:00
MetersPanel.c Fix crash when emptying column. Closes #381. 2016-02-12 23:33:53 -02:00
MetersPanel.h Improve feedback when moving meters. 2015-08-27 19:14:13 -03:00
NEWS cleanup old stuff 2011-11-21 02:58:34 +00:00
Object.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
Object.h Check for failure in allocations. 2016-02-02 15:53:02 +01:00
OpenFilesScreen.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
OpenFilesScreen.h refactor *Screen classes, add InfoScreen superclass 2016-01-12 06:00:58 -02:00
Panel.c Fix behavior of Panel on empty lists. 2016-02-18 17:45:04 -02:00
Panel.h Visual tweaks: change color when following, add Broken Gray theme. 2015-04-09 15:17:20 -03:00
Process.c Catch invalid IO values due to no permissions. 2016-02-20 02:23:26 -02:00
Process.h Reuse comm object if possible, avoid useless repetitions of free+strdup. 2016-02-02 15:56:52 +01:00
ProcessList.c Release resource when using hwloc 2016-02-29 21:57:27 -03:00
ProcessList.h Portable affinity using hwloc 2016-02-14 19:57:29 -02:00
README Minor tweaks to the README 2016-02-11 17:20:50 -02:00
README.md Add README.md for Github 2014-02-03 09:11:39 -02:00
RichString.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
RichString.h Introduce CLAMP macro. Unify all MIN(MAX(a,b),c) uses. 2016-01-15 20:26:01 +08:00
ScreenManager.c Fix behavior of ESC key, getting rid of the annoying delay. 2016-02-19 13:38:02 -02:00
ScreenManager.h Move FunctionBar inside Panel 2015-03-23 15:26:56 -03:00
Settings.c Initialize default meter modes properly. 2016-02-02 16:15:07 +01:00
Settings.h Merge pull request #148 from nckx/display-basename 2015-08-12 17:16:50 -03:00
SignalsPanel.c Fix build in FreeBSD, and make sure SIGTERM is always the default. 2015-10-06 12:50:31 -03:00
SignalsPanel.h Changes in object model: separate class objects to store vtable. Also, nicer UTF-8 display of big numbers. 2012-12-05 15:12:20 +00:00
StringUtils.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
StringUtils.h Fix comment. 2015-08-19 13:58:29 -03:00
SwapMeter.c use dynamic units for text display 2015-08-27 06:13:27 +02:00
SwapMeter.h use dynamic units for text display 2015-08-27 06:13:27 +02:00
TESTPLAN Fix failing stuff. 2015-04-09 15:56:43 -03:00
TasksMeter.c Major advances in FreeBSD port. 2015-03-16 23:02:03 -03:00
TasksMeter.h Changes in object model: separate class objects to store vtable. Also, nicer UTF-8 display of big numbers. 2012-12-05 15:12:20 +00:00
TraceScreen.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
TraceScreen.h refactor *Screen classes, add InfoScreen superclass 2016-01-12 06:00:58 -02:00
UptimeMeter.c Make UptimeMeter cross-platform again. 2014-11-27 19:41:14 -02:00
UptimeMeter.h Move UptimeMeter back into cross-platform code. 2014-11-27 19:34:47 -02:00
UsersTable.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
UsersTable.h major header cleanup 2011-12-26 21:35:57 +00:00
Vector.c Check for failure in allocations. 2016-02-02 15:53:02 +01:00
Vector.h Changes in object model: separate class objects to store vtable. Also, nicer UTF-8 display of big numbers. 2012-12-05 15:12:20 +00:00
XAlloc.c Shorten the code using the err() function. 2016-02-03 12:42:25 +00:00
XAlloc.h Add allocation tests 2016-01-31 12:01:48 +01:00
autogen.sh Simplify autogen.sh 2016-02-14 22:36:40 +01:00
configure.ac Portable affinity using hwloc 2016-02-14 19:57:29 -02:00
htop.1.in Fixed/enhanced some entries in the manpage 2015-11-04 12:13:16 +01:00
htop.c Remove old commented code. 2016-02-19 13:39:38 -02:00
htop.desktop Update htop.desktop 2015-09-19 00:12:41 +02:00
htop.h Sorry about the mega-patch. 2015-01-21 23:27:31 -02:00
htop.png Updated icon! 2014-04-09 14:47:58 -03:00
test_spec.lua Tweaks on the test suite, still problematic. 2016-02-19 13:40:00 -02:00

README.md

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htop

by Hisham Muhammad hisham@gobolinux.org (2004 - 2016)

Introduction

This is htop, an interactive process viewer. It requires ncurses. It is developed primarily on Linux, but we also have code for running under FreeBSD and Mac OS X (help and testing are wanted for these platforms!)

This software has evolved considerably over the years, and is reasonably complete, but there is always room for improvement.

Comparison between htop and classic top

  • In htop you can scroll the list vertically and horizontally to see all processes and full command lines.
  • In top you are subject to a delay for each unassigned key you press (especially annoying when multi-key escape sequences are triggered by accident).
  • htop starts faster (top seems to collect data for a while before displaying anything).
  • In htop you don't need to type the process number to kill a process, in top you do.
  • In htop you don't need to type the process number or the priority value to renice a process, in top you do.
  • In htop you can kill multiple processes at once.
  • top is older, hence, more tested.

Compilation instructions

This program is distributed as a standard autotools-based package. See the INSTALL file for detailed instructions.

When compiling from a release tarball, run:

./configure && make

For compiling sources downloaded from the Git repository, run:

./autogen.sh && ./configure && make

By default make install will install into /usr/local, for changing the path use ./configure --prefix=/some/path.

See the manual page (man htop) or the on-line help ('F1' or 'h' inside htop) for a list of supported key commands.

If not all keys work check your curses configuration.

License

GNU General Public License, version 2 (GPL-2.0)