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
sftp : secure file transfer program
openssl : OpenSSL command line tool
...

shell

busybox : The Swiss Army Knife of Embedded Linux
watch : execute a program periodically, showing output fullscreen
locale : specific information.
startpar : start runlevel scripts in parallel
xargs : build and execute command lines from standard input
gnome-terminal : is a terminal emulation application.
...

filesystem

resize2fs : ext2/ext3/ext4 file system resizer
passwd : change user password
fsck : check and repair a Linux filesystem
chown : change file owner and group
hdparm : get/set SATA/IDE device parameters
mkfs.ext3 : create an ext2/ext3/ext4 filesystem
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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
ipcmk : create various ipc resources
xargs : build and execute command lines from standard input
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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
unlink : call the unlink function to remove the specified file
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graphic manipulation

gimp : an image manipulation and paint program.
start-stop-daemon : start and stop system daemon programs
ppmtojpeg : convert PNM image to a JFIF ("JPEG") image
xmllint : command line XML tool
imgtoppm : convert an Img-whatnot file into a portable pixmap
gnome-session-quit : End the current GNOME session
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database

mysqlimport : a data import program
mysqld_safe : MySQL server startup script
dvdrip : GUI for copying DVDs
mysqlaccess : client for checking access privileges
lame : create mp3 audio files
iconv : Convert encoding of given files from one encoding to another
...

X

gnome-terminal : is a terminal emulation application.
xfreerdp : FreeRDP X11 client
xsetroot : root window parameter setting utility for X
sha1sum : compute and check SHA1 message digest
uxterm : X terminal emulator for Unicode (UTF-8) environments
gksudo : GTK+ frontend for su and sudo
...

package management

dpkg-deb : Debian package archive (.deb) manipulation tool
dpkg-maintscript-helper : works around known dpkg limitations in maintainer scripts
sha1sum : compute and check SHA1 message digest
make : GNU make utility to maintain groups of programs
dpkg-reconfigure : reconfigure an already installed package
apt-config : APT Configuration Query program
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printer

ppdc : cups ppd compiler
ghostscript : Ghostscript (PostScript and PDF language interpreter and previewer)
nohup : run a command immune to hangups, with output to a non-tty
ppmtolj : convert a portable pixmap to an HP LaserJet PCL 5 Color file
foomatic-datafile : Generate a PPD file for a given printer/driver combo
ps2ps : , eps2eps Ghostscript PostScript "distiller"
...

text manipulation

bluez-simple-service :
unwrapdiff : demangle word-wrapped patches
fmtutil-sys : utility for maintaining TeX format files system-wide
ping : 6 send ICMP ECHO_REQUEST to network hosts
loadunimap : load the kernel unicode-to-font mapping table
awk : pattern scanning and processing language
...

privacy

passwd : change user password
gzexe : compress executable files in place
mkpasswd : Overfeatured front end to crypt(3)
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
...

sound manipulation

gst-launch-1.0 : build and run a GStreamer pipeline
audacity : Graphical cross-platform audio editor
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
cweave : translate CWEB to C and/or TeX
...

Access Control List

su : change user ID or become superuser
usermod : modify a user account
login : begin session on the system
passwd : change user password
MAKEDEV : create devices
update-grub : stub for grub-mkconfig
...

file compression

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
7zr : A file archiver with highest compression ratio
iconv : Convert encoding of given files from one encoding to another
...

text editor

nohup : run a command immune to hangups, with output to a non-tty
pgrep : , pkill look up or signal processes based on name and other attributes
passwd : change user password
start-stop-daemon : start and stop system daemon programs
parted : GNU Parted - a partition manipulation program
airtun-ng : a virtual tunnel interface creator for aircrack-ng
...

boot settings

grub-mkimage : make a bootable image of GRUB
passwd : change user password
spd-conf : A simple tool for basic configuration of Speech Dispatcher and problem diagnostics
update-grub : stub for grub-mkconfig
syslinux : install the SYSLINUX bootloader on a FAT filesystem
iconv : Convert encoding of given files from one encoding to another
...

font

update-grub : stub for grub-mkconfig
alias :
iconv : Convert encoding of given files from one encoding to another
python2.7 : an interpreted, interactive, object-oriented programming language
kerneloops : program to collect and submit kernel oopses to kerneloops.org
loadunimap : load the kernel unicode-to-font mapping table
...

mail

start-stop-daemon : start and stop system daemon programs
avconv : avconv video converter
airtun-ng : a virtual tunnel interface creator for aircrack-ng
gst-launch-1.0 : build and run a GStreamer pipeline
passwd : change user password
cweave : translate CWEB to C and/or TeX
...

Media Player

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
subtitle2pgm :
svlc : , nvlc, rvlc, cvlc the VLC media player
...

webserver

a2ensite : enable or disable an apache2 site / virtual host
lame : create mp3 audio files
loadunimap : load the kernel unicode-to-font mapping table
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
...

virtualization

sha1sum : compute and check SHA1 message digest
innochecksum : offline InnoDB file checksum utility
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
...

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