You have just completed the Linux Fundamentals
|
man <tool>
|
Opens man pages for the specified tool.
|
|
<tool> -h
|
Prints the help page of the tool.
|
|
apropos <keyword>
|
Searches through man pages' descriptions for instances of a given keyword.
|
|
cat
|
Concatenate and print files.
|
|
whoami
|
Displays current username.
|
|
id
|
Returns users identity.
|
|
hostname
|
Sets or prints the name of the current host system.
|
|
uname
|
Prints operating system name.
|
|
pwd
|
Returns working directory name.
|
|
ifconfig
|
The ifconfig utility is used to assign or view an address to a network interface and/or configure network interface parameters.
|
|
ip
|
Ip is a utility to show or manipulate routing, network devices, interfaces, and tunnels.
|
|
netstat
|
Shows network status.
|
|
ss
|
Another utility to investigate sockets.
|
|
ps
|
Shows process status.
|
|
who
|
Displays who is logged in.
|
|
env
|
Prints environment or sets and executes a command.
|
|
journalctl
|
Query the systemd journal.
|
|
kill
|
Sends a signal to a process.
|
|
bg
|
Puts a process into background.
|
|
jobs
|
Lists all processes that are running in the background.
|
|
fg
|
Puts a process into the foreground.
|
|
ls
|
Lists directory contents.
|
|
cd
|
Changes the directory.
|
|
clear
|
Clears the terminal.
|
|
which
|
Returns the path to a file or link.
|
|
find
|
Searches for files in a directory hierarchy.
|
|
updatedb
|
Updates the locale database for existing contents on the system.
|
|
locate
|
Uses the locale database to find contents on the system.
|
|
chmod
|
Changes permission of a file or directory.
|
|
chown
|
Changes the owner and group of a file or directory.
|
|
dpkg
|
Install, remove and configure Debian-based packages.
|
|
apt
|
High-level package management command-line utility.
|
|
aptitude
|
Alternative to apt.
|
|
snap
|
Install, remove and configure snap packages.
|
|
gem
|
Standard package manager for Ruby.
|
|
pip
|
Standard package manager for Python.
|
|
git
|
Revision control system command-line utility.
|
|
sudo
|
Execute command as a different user.
|
|
su
|
The su utility requests appropriate user credentials via PAM and switches to that user ID (the default user is the superuser). A shell is then executed.
|
|
useradd
|
Creates a new user or update default new user information.
|
|
userdel
|
Deletes a user account and related files.
|
|
usermod
|
Modifies a user account.
|
|
addgroup
|
Adds a group to the system.
|
|
delgroup
|
Removes a group from the system.
|
|
passwd
|
Changes user password.
|
|
curl
|
Command-line utility to transfer data from or to a server.
|
|
wget
|
An alternative to curl that downloads files from FTP or HTTP(s) server.
|
|
python3 -m http.server
|
Starts a Python3 web server on TCP port 8000.
|
|
lsblk
|
Lists block devices.
|
|
lsus
|
Lists USB devices.
|
|
lsof
|
Lists opened files.
|
|
lspci
|
Lists PCI devices.
|
|
touch
|
Creates an empty file.
|
|
mkdir
|
Creates a directory.
|
|
tree
|
Lists the contents of a directory recursively.
|
|
mv
|
Move or rename files or directories.
|
|
cp
|
Copy files or directories.
|
|
nano
|
Terminal based text editor.
|
|
more
|
Pager that is used to read STDOUT or files.
|
|
less
|
An alternative to more with more features.
|
|
head
|
Prints the first ten lines of STDOUT or a file.
|
|
tail
|
Prints the last ten lines of STDOUT or a file.
|
|
sort
|
Sorts the contents of STDOUT or a file.
|
|
grep
|
Searches for specific results that contain given patterns.
|
|
cut
|
Removes sections from each line of files.
|
|
tr
|
Replaces certain characters.
|
|
column
|
Command-line based utility that formats its input into multiple columns.
|
|
awk
|
Pattern scanning and processing language.
|
|
sed
|
A stream editor for filtering and transforming text.
|
|
wc
|
Prints newline, word, and byte counts for a given input.
|
No comments yet.
Cheatography n. The art of mapping complex subjects into clear, instantly navigable reference guides.
