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Apropos

Search the whatis database for strings.

apt

A commandline package manager and provides commands for searching and managing as well as querying information about packages

Unix

Unix commands.

awk

Pattern scanning and text processing language - Awk puts every input into a list of objects.

base64

Base64 encode or decode FILE, or standard input, to standard output.

biosdecode

BIOS information decoder.

blkid

Locate/print block device attributes.

cal

Displays a calendar

cat

Concatenate files and print on the standard output.

chage

Change user password expiry information.

chmod

Change file mode bits.

chsh

Change login shell.

comm

Compare sorted files FILE1 and FILE2 line by line.

crontab

Maintain crontab files for individual users, used for execution of recurring tasks.

cut

Command for cutting out the sections from each line of files.

date

Display the current time in the given FORMAT, or set the system date.

dd

Convert and copy a file - block level - warning: also known as 'data destroyer.

delv

DNS lookup and validation utility, DNSSEC validation.

df

Show information about the file system on which each FILE resides, or all file systems by default.

diff

Compare FILES line by line.

dig

DNS lookup utility.

dmesg

Display or control the kernel ring buffer.

Faketime

Manipulate the system time for a given command.

fdisk

Manipulate disk partition table.

file

Determine type of FILEs.

find

Search for files in a directory hierarchy.

fls

List file and directory names in a disk image.

free

Display amount of free and used memory in the system.

ftp

File Transfer Protocol.

Ghostscript

Ghostscript (PostScript and PDF language interpreter and previewer).

gpg

OpenPGP encryption and signing tool - Sign, check, encrypt or decrypt.

grep

Search for PATTERNS in each FILE.

groupadd

Create a new group.

groupdel

Delete a group.

hdparm

Get/set SATA/IDE device parameters.

head

Print the first 10 lines of each FILE to standard output.

history

GNU History Library.

host

DNS lookup utility.

ifconfig

Configure a network interface.

iotop

Simple top-like I/O monitor.

ip

Show / manipulate routing, network devices, interfaces and tunnels.

iwconfig

Configure a wireless network interface.

journalctl

Query the journal.

kill

Send a signal to a process.

ln

Make links between files.

Locate

Find files by name.

ls

List information about the FILEs (the current directory by default).

lsb_release

Print distribution-specific information.

lsblk

List information about block devices.

lshw

Hardware Lister.

lsmod

Show the status of modules in the Linux Kernel.

lspci

List all PCI devices.

lsusb

List USB devices.

Lvextend

Extend the size of a logical volume.

md5sum

Compute and check MD5 message digest.

mkdir

Make directories.

mkpasswd

Encrypts the given password with the crypt(3) libc function, using the given salt..

modprobe

Add and remove modules from the Linux Kernel.

mount

Mount a filesystem.

mtr

A network diagnostic tool, faster and easier then traceroute.

nc

Netcat, arbitrary TCP and UDP connections and listens.

ncdu

Provides a fast and easy-to-use interface through famous du utility.

netplan

YAML network configuration abstraction for various backends.

netstat

Print network connections, routing tables, interface statistics, masquerade connections, and multicast memberships.

network-manager

NetworkManager monitors all network connections and automatically.

nm connection editor

Allows users to view and edit network connection settings. For example create Wi-Fi hotspot.

nmcli

Command-line tool for controlling NetworkManager.

nslookup

Query Internet name servers interactively.

ntp

Network Time Protocol daemon and utility programs.

passwd

Change user password.

Pdbedit

Manage the SAM database (Database of Samba Users).

ps

Displays information about a selection of the active processes.

rev

Reverse lines characterwise.

scp

Secure copy (remote file copy program).

script

Make a typescript of a terminal session.

sed

Stream editor for filtering and transforming text.

sha1sum

Compute and check SHA1 message digest.

sha256sum

Compute and check SHA256 message digest.

Shuf

Write a random permutation of the input lines to standard output.

sort

Write sorted concatenation of all FILE(s) to standard output.

split

Split a file into pieces.

ss

Another utility to investigate sockets.

strings

Print the sequences of printable characters in files.

sudo

Execute a command as another user.

sudoedit

Edit files as another user.

systemctl

Control the systemd system and service manager.

tail

Print the last 10 lines of each FILE to standard output.

tar

GNU 'tar' saves many files together into a single tape or disk archive, and can restore individual files from the archive.

tee

Read from standard input and write to standard output and files.

tftp

Trivial File Transfer Program.

timedatectl

Control the system time and date.

touch

Change file timestamps.

tr

Translate, squeeze, and/or delete characters from standard input, writing to standard output.

uname

Print certain system information.

upower

Battery information.

vimdiff

Edit between two and eight versions of a file with Vim and show differences.

watch

Execute a program periodically, showing output fullscreen.

wc

Print newline, word, and byte counts for each file.

wget

A non-interactive network retriever.

xargs

Build and execute command lines from standard input.

xxd

Make a hexdump or do the reverse.

MACchanger

Change MAC address of a NIC.

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