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htop
====
The Rivoreo customized version, forked from commit
402e46bb82964366746b86d77eb5afa69c279539.
The original version made by Hisham Muhammad <hisham@gobolinux.org> is
available at [an archived git repository](https://github.com/hishamhm/htop).
Changes from original version
-----------------------------
* System call tracing support via **truss(1)**, which is available in many
Unix-like systems
* Support showing process name in addition to process command line
* AIX support, by Calvin Buckley <calvin@cmpct.info>
* Many Solaris-specific bug fixes
* Support showing ZFS ARC size on Solaris-kernel-based, Linux-based,
kFreeBSD-based and macOS (Mac OS X) platforms
* Android/Linux support
* Linux CPU hot-plugging aware
* Distinguishable effective user and real user of processes
* Basic Interix support
* Cygwin support
* Many OpenBSD-specific bug fixes
* Thread processes support for OpenBSD
* Solaris support without **libproc(3LIB)** (which is a private library of
the operating system)
* Many byte-order related bug fixes
* Support kFreeBSD-based systems without **kvm(3)** (which isn't a standard
library on GNU/kFreeBSD)
* FreeBSD 5 support
* Enhanced kernel process detection logic for Linux-based platforms
* Build-time detection of available signals
* Process command line arguments screen (key `A`) just like the process
environment screen (key `e`)
* Processor times meter improvements for OpenBSD, by Antoine Motet
<antoine.motet@gmail.com>
* (hopefully bug-free) **vi(1)**-style key bindings support
* Support showing process start time for all platforms
* Mouse support can now be disabled in setup
* Handle circularized process tree(s) that may happening with some kernels
* User-defined color schemes
* Consistent process state names
* Optional case-insensitive sorting
* GNU/Hurd support
* Kernel stack tracing of processes for Linux-based and kFreeBSD-based
platforms
See the commit log for more.
Building environment requirements
---------------------------------
* GNU Make or BSD make.
* A C99 compiler. Some platform-specific codes may use GNU C extensions; in
that case, GCC 3.3+ or a compatible C compiler will be required.
Supported target platforms
--------------------------
### Linux-based operating systems
A minimal of **Linux 2.0** is required; while version 2.6 or later is
recommended.
For **GNU/Linux**, **GNU C Library 2.0** and later versions are supported.
For **uC/Linux**, only the **uClibc 0.9.33.2** is supported.
For **Android/Linux**, **Android 4.0** and later versions are supported.
Linux with other C library will likely work, but not tested.
### kFreeBSD-based operating systems
A minimal of **kFreeBSD 5.0** is required.
**FreeBSD 5** and later releases are supported.
For **GNU/kFreeBSD**, only the **GNU C Library 2.13** is tested and therefore
supported.
### DragonFly BSD
**DragonFly BSD 5.0** and later releases are supported.
### macOS (Mac OS X)
**Mac OS X 10.4** and later releases are supported.
### OpenBSD
**OpenBSD 5.0** and later releases are supported.
### Solaris
**Solaris 9** and later releases are supported.
Currently only tested with GCC, therefore building with Sun C compiler is not
supported.
Other Solars-kernel-based operating systems such as **GNU/kOpenSolaris** are
currently not supported.
### GNU/Hurd
Currently only tested with **GNU C Library 2.19**, **GNU HURD 0.5** and
**GNU Mach 1.4**. Although unsupported, it is expected to work with newer
versions of operating system components.
### AIX
Currently only tested on **AIX 7.1**. Although unsupported, it is expected to
work on newer versions of the operating system.
### Cygwin
Currently only tested on **Cygwin 1.7.18**.
### Interix
Support is incomplete, many features won't work.
**Interix 3.5** and later versions are supported.