Source: http://www.netfilter.org/projects/iptables/
bash (3.2.48)
Bash is the shell, or command language interpreter,
that will appear in the GNU operating system.
Bash is an sh-compatible shell that incorporates
useful features from the Korn shell (ksh) and C shell
(csh).
It is intended to conform to the IEEE POSIX
P1003.2/ISO 9945.2 Shell and Tools standard.
It offers functional improvements over sh for both
programming and interactive use.
In addition, most sh scripts can be run by Bash
without modification.
Source: http://www.gnu.org/software/bash/
coreutils (6.9)
The GNU Core Utilities are the basic file, shell and text
manipulation utilities of the GNU operating system.
These are the core utilities which are expected to
exist on every operating system.
Source: http://www.gnu.org/software/coreutils/
findutils (4.2.31)
The GNU Find Utilities are the basic directory
searching utilities of the GNU operating system.
These programs are typically used in conjunction with
other programs to provide modular and powerful
directory search and file locating capabilities to other
commands.
Source: http://www.gnu.org/software/findutils/
gawk (3.1.5)
If you are like many computer users, you would
frequently like to make changes in various text files
wherever certain patterns appear, or extract data from
parts of certain lines while discarding the rest.
To write a program to do this in a language such as C
or Pascal is a time-consuming inconvenience that
may take many lines of code.
The job is easy with awk, especially the GNU
implementation: gawk.
Source: http://www.gnu.org/software/gawk/
grep (2.5.1a)
The grep command searches one or more input files
for lines containing a match to a specified pattern. By
default, grep prints the matching lines.
Source: http://www.gnu.org/software/grep/
gzip (1.3.12)
GNU Gzip is a popular data compression program
originally written by Jean-loup Gailly for the GNU
project. Mark Adler wrote the decompression part.
Source: http://www.gnu.org/software/gzip/
inetutils (1.4.2)
Inetutils is a collection of common network
programs.
Source: http://www.gnu.org/software/inetutils/
iputils (s20101006)
The iputils package is set of small useful utilities for
Linux networking. It was originally maintained by
Alexey Kuznetsov.
Source: http://www.skbuff.net/iputils/
module-init-tools (3.12)
Provides developer documentation for the utilities
used by Linux systems to load and manage kernel
modules (commonly referred to as "drivers").
Source: https://modules.wiki.kernel.org/index.php/M
ain_Page
ncurses (5.7)
The Ncurses (new curses) library is a free software
emulation of curses in System V Release 4.0, and
more.
It uses Terminfo format, supports pads and color and
multiple highlights and forms characters and function-
key mapping, and has all the other SYSV-curses
enhancements over BSD Curses.
Source: http://www.gnu.org/software/ncurses/
net-tools (1.6)
The Net-tools?package is a collection of programs for
controlling the network subsystem of the Linux
kernel.
Source: http://www.linuxfromscratch.org/blfs/view/6.
3/basicnet/net-tools.html
procps (ps, top) (3.2.8)
procps is the package that has a bunch of small
useful utilities that give information about processes
using the /proc filesystem.
The package includes the programs ps, top, vmstat, w,
kill, free, slabtop, and skill.
Source: http://procps.sourceforge.net/index.html
psmisc (22.13)
This PSmisc package is a set of some small useful
utilities that use the proc filesystem. We're not about
changing the world, but providing the system
administrator with some help in common tasks.
Source: http://psmisc.sourceforge.net/
sed (4.1.5)
sed (stream editor) isn't an interactive text editor.
Instead, it is used to filter text, i.e., it takes text input,
performs some operation (or set of operations) on it,
and outputs the modified text.
sed is typically used for extracting part of a file using
pattern matching or substituting multiple occurrences
of a string within a file.
Source: http://www.gnu.org/software/sed/
tar (1.17)
GNU Tar provides the ability to create tar archives, as
well as various other kinds of manipulation.
For example, you can use Tar on previously created
archives to extract files, to store additional files, or to
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