Linux Commands Examples

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network

netcat : NC(1) BSD General Commands Manual NC(1) nc — arbitrary TCP and UDP connections and listens
ping : 6 send ICMP ECHO_REQUEST to network hosts
nmcli : – commandline tool for controlling NetworkManager
telnet : user interface to the TELNET protocol
openssl : OpenSSL command line tool
sftp : secure file transfer program
...

shell

busybox : The Swiss Army Knife of Embedded Linux
which : locate a command
fusermount : mount and unmount FUSE filesystems
watch : execute a program periodically, showing output fullscreen
locale : specific information.
startpar : start runlevel scripts in parallel
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filesystem

chown : change file owner and group
resize2fs : ext2/ext3/ext4 file system resizer
passwd : change user password
fsck : check and repair a Linux filesystem
mkfs : build a Linux filesystem
rename : renames multiple files
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programming

strace : trace system calls and signals
startpar : start runlevel scripts in parallel
MAKEDEV : create devices
busybox : The Swiss Army Knife of Embedded Linux
setkeycodes : load kernel scancode-to-keycode mapping table entries
kmk_sed : framework for writing simple makefiles for complex tasks
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file

passwd : change user password
su : change user ID or become superuser
mkfs.ext2 : create an ext2/ext3/ext4 filesystem
egrep : , fgrep, rgrep print lines matching a pattern
hexdump : , hd ASCII, decimal, hexadecimal, octal dump
loadunimap : load the kernel unicode-to-font mapping table
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graphic manipulation

start-stop-daemon : start and stop system daemon programs
gimp : an image manipulation and paint program.
mkntfs : create an NTFS file system
dvipos : compute positions in a DVI file
grap2graph : convert a grap diagram into a cropped bitmap image
ppmshift : shift lines of a portable pixmap left or right by a random amount
...

database

mysqlimport : a data import program
mysqld_safe : MySQL server startup script
find : search for files in a directory hierarchy
mysql_zap : kill processes that match a pattern
airtun-ng : a virtual tunnel interface creator for aircrack-ng
start-stop-daemon : start and stop system daemon programs
...

X

gnome-terminal : is a terminal emulation application.
xfreerdp : FreeRDP X11 client
xlsclients : list client applications running on a display
lame : create mp3 audio files
loadunimap : load the kernel unicode-to-font mapping table
pnmmargin : add a border to a portable anymap
...

package management

dpkg-reconfigure : reconfigure an already installed package
apt-config : APT Configuration Query program
passwd : change user password
cweave : translate CWEB to C and/or TeX
python2.7 : an interpreted, interactive, object-oriented programming language
dh_installdeb : install files into the DEBIAN directory
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printer

ppdc : cups ppd compiler
ghostscript : Ghostscript (PostScript and PDF language interpreter and previewer)
loadunimap : load the kernel unicode-to-font mapping table
xmllint : command line XML tool
dvdrip : GUI for copying DVDs
iconv : Convert encoding of given files from one encoding to another
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text manipulation

loadunimap : load the kernel unicode-to-font mapping table
awk : pattern scanning and processing language
dvdrip : GUI for copying DVDs
sha1sum : compute and check SHA1 message digest
nohup : run a command immune to hangups, with output to a non-tty
nl : number lines of files
...

privacy

passwd : change user password
kerneloops : program to collect and submit kernel oopses to kerneloops.org
loadunimap : load the kernel unicode-to-font mapping table
chroot : run command or interactive shell with special root directory
tor : The second-generation onion router
iconv : Convert encoding of given files from one encoding to another
...

sound manipulation

audacity : Graphical cross-platform audio editor
gst-launch-1.0 : build and run a GStreamer pipeline
passwd : change user password
iconv : Convert encoding of given files from one encoding to another
gst-typefind-0.10 : print MIME type of file
wavpack : encode wav files to wavpack
...

Access Control List

su : change user ID or become superuser
MAKEDEV : create devices
update-grub : stub for grub-mkconfig
uic :
start-stop-daemon : start and stop system daemon programs
nohup : run a command immune to hangups, with output to a non-tty
...

file compression

avconv : avconv video converter
start-stop-daemon : start and stop system daemon programs
filterdiff : extract or exclude diffs from a diff file
p7zip : Wrapper on 7zr, a 7-zip file archiver with high compression ratio
lame : create mp3 audio files
update-grub : stub for grub-mkconfig
...

text editor

pdb3.3 : the Python debugger
cweave : translate CWEB to C and/or TeX
cpp : The C Preprocessor
kerneloops : program to collect and submit kernel oopses to kerneloops.org
update-grub : stub for grub-mkconfig
gedit : text editor for the GNOME Desktop
...

boot settings

airtun-ng : a virtual tunnel interface creator for aircrack-ng
loadunimap : load the kernel unicode-to-font mapping table
lame : create mp3 audio files
sha1sum : compute and check SHA1 message digest
gst-launch-1.0 : build and run a GStreamer pipeline
erb1.8 : an embedded Ruby language interpreter
...

font

spd-conf : A simple tool for basic configuration of Speech Dispatcher and problem diagnostics
debugfs : ext2/ext3/ext4 file system debugger
ofm2opl : convert Omega and TeX font-metric files to property-list files
passwd : change user password
cweave : translate CWEB to C and/or TeX
mft : translate Metafont or MetaPost code to TeX code for prettyprinting
...

mail

lame : create mp3 audio files
loadunimap : load the kernel unicode-to-font mapping table
mimeopen : Open files by mimetype
spd-conf : A simple tool for basic configuration of Speech Dispatcher and problem diagnostics
nohup : run a command immune to hangups, with output to a non-tty
ping : 6 send ICMP ECHO_REQUEST to network hosts
...

Media Player

lame : create mp3 audio files
start-stop-daemon : start and stop system daemon programs
amarok : The audio player for KDE
sha1sum : compute and check SHA1 message digest
nohup : run a command immune to hangups, with output to a non-tty
ping : 6 send ICMP ECHO_REQUEST to network hosts
...

webserver

a2ensite : enable or disable an apache2 site / virtual host
apachectl : Apache HTTP server control interface
cweave : translate CWEB to C and/or TeX
airtun-ng : a virtual tunnel interface creator for aircrack-ng
update-grub : stub for grub-mkconfig
passwd : change user password
...

virtualization

ping : 6 send ICMP ECHO_REQUEST to network hosts
start-stop-daemon : start and stop system daemon programs
VBoxControl : x86 virtualization solution
spd-conf : A simple tool for basic configuration of Speech Dispatcher and problem diagnostics
nohup : run a command immune to hangups, with output to a non-tty
passwd : change user password
...

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