Cheat Sheet of Useful Commands Every Kali Linux User Needs To Know
This cheat sheet includes a list of basic and useful Linux commands that every Kali Linux user needs to know.
If you want to learn how to hack with Kali Linux, the most important thing you should do first is to master the command line interface.
Tasks that take minutes or even hours to do on a desktop environment (GUI) can be done in a matter of seconds from the command line.
To download an entire HTML website, you only need to type:
wget -r domain.com
Now if you were to do the same on a GUI, you'd have to save each page one by one.
This is only one of many examples as to how powerful the command line is. There are many other tasks on Linux that can only be done from the command line.
Knowing your way around a command line will make you a more efficient and effective programmer. You'll be able to get shit done faster by automating repetitive tasks.
Plus, you'll look like a complete bad ass in the process.
Use this cheat sheet as a reference in case you forget how to do certain tasks from the command-line. And trust me, it happens.
If you're new to Unix/Linux operating systems, this cheat sheet also includes the fundamental linux commands such as jumping from one directory to another, as well as more technical stuff like managing processes.
Everything inside "<>" should be replaced with a name of a file, directory or command.
Bash = A popular command-line used in Unix/Linux operating systems.
dir = directory/folder
file = file name & type (eg. notes.txt)
cmd = command (eg. mkdir, ls, curl, etc)
location = path/destination (eg. /home/Desktop)
CTRL + L
Clear terminal screen
CTRL + D
Log out of current session
CTRL + C
Stop (halt) currently running command/processes
CTRL + Z
Suspend (pause) currently running command/processes
CTRL + W
Delete the last word/argument
CTRL + E
Jump (skip) to the very LAST line
CTRL + A
Jump (skip) to the very FIRST line
CTRL + F
Move cursor one letter forward
CTRL + B
Move cursor one letter backward
CTRL + U
Cut (copy) everything BEFORE the cursor
CTRL + K
Cut (copy) everything AFTER the cursor
CTRL + Y
Paste previously copied text
Clear terminal screen
Fix display errors
Exit (log out) current session
Repeat last command
Repeat last command as sudo (admin/root) user
Read the manual page of a command
Locate the path name of a command
File & Directory Manipulation
pwd: Display path of current directory you’re in
ls: List all files and folders in the current directory
ls -la: List detailed list of files and folders, including hidden ones
Change to a specific directory
cd: Change to home directory
cd /user/Desktop: Change to a specific directory called Desktop
cd .. : Move back a directory
Create a directory/folder
mkdir <dir>: Create a new directory
mkdir /home/Desktop/dir: Create a directory in a specific location
Create and edit files
touch <file>: Create an empty file
nano <file>: Edit an existing file or create it if it doesn’t exist.
Alternatives to nano text editor: vim, emacs
Copy, move and rename files and directories
cp <file1> <file2>: Create a copy of a file
cp -r <dir1> <dir2>: Create a copy of a directory and everything in it
cp <file> /home/Desktop/file2: Create a copy of a file in a different directory and name it file2.
mv <file> /home/Desktop: Move a file to a specific directory (overwrites any existing file with the same name)
mv <dir> /home/Desktop: Move a directory to another location
mv <dir1> <dir2>: Rename a file OR directory (dir1 -> dir2)
rm <file>: Delete a file
rm -f <file>: Force delete a file
rm -r <dir>: Delete a directory and its contents
rm -rf <dir>: Force delete a directory and its contents
Careful when using this command as it will delete everything inside the directory
Output and analyze files
cat <file>: Display/output the contents of a file
less <file>: Display the contents of a file with scroll (paginate) ability (press q to quit)
head <file>: Display the first ten lines in a file
head -20 <file>: Display the first 20 lines in a file
tail <file>: Display the last ten lines in a file
tail -20 <file>: Display the last 20 lines in a file
diff <file1> <file2>: Check the difference between two files (file1 and file2)
System & User Information
cal: Display monthly calendar
date: Check date and time
uptime: Check system uptime and currently logged in users
uname -a: Display system information.
dmesg: Display kernel ring buffer
poweroff: Shutdown system
reboot: Reboot system
View disk and memory usage
df -h: Display disk space usage
fdisk -l: List disk partition tables
free: Display memory usage
cat /proc/meminfo: Display memory information
cat /proc/cpuinfo: Display cpu information
View user information
whoami: Output your username
w: Check who’s online
history: View a list of your previously executed commands
View last logged in users and information
last: Display last login info of users
last <user>: Display last login info of a specific user
finger <user>: Display user information
Installing & Upgrading Packages
Search for packages
apt-cache pkgnames: List all available packages
apt search <name>: Search for a package and its description
apt show <name>: Check detailed description of a package
apt-get install <name>: Install a package
apt-get install <name1> <name2>: Install multiple packages
Update, upgrade & cleanup
apt-get update: Update list of available packages
apt-get upgrade: Install the newest version of available packages
apt-get dist-upgrade: Force upgrade packages.
apt-get autoremove: Remove installed packages that are no longer needed
apt-get clean: Free up disk space by removing archived packages
apt-get remove: Uninstall a package
apt-get remove --purge: Uninstall a package and remove its configuration files
Processes & Job Management
top: Display running processes & system usage in real-time.
ps: Display currently running processes
ps -u <user>: Display currently running processes of a user
kill <PID>: Kill a processes by PID #.
killall <processes>: Kill all processes with specified name.
Start, stop, resume jobs
jobs: Display the status of current jobs
jobs -l: Display detailed info about each job
jobs -r: Display only running jobs
bg: View stopped background jobs or resume job in the background
fg: Resume recent job in the foreground
fg <job>: Bring specific job to the foreground.
ping <host>: Ping a host
whois <domain/IP>: Get whois information about a domain or IP.
dig <domain/IP>: Get DNS information
nslookup: <NS>: Get nameserver information
ifconfig: Configure/display network interfaces
iwconfig: Configure/display wireless network interfaces
netstat -r: Display kernel IP routing tables
netstat -antp: Check for established and listening ports/connections
arp -a: Display ARP cache tables for all interfaces
Secure File Transfer (SCP)
Transfer files FROM the local system TO a remote host (Local > Remote)
scp /path/to/file [email protected]:/path/to/dest
Transfer files FROM a remote host TO the local system (Remote > Local)
scp [email protected]:/path/to/file /path/to/dest
Transfer directories and everything within it
scp -r /path/to/dir [email protected]:/path/to/dest
Transfer all files that match a specific filetype
scp /path/to/*.txt [email protected]:/path/to/dest
Transfer local public SSH public key to remote host
cat ~/.ssh/id_rsa.pub | ssh [email protected] 'cat >> .ssh/authorized_keys'
Am I forgetting something? Let me know in the comments below. I'll continue to update this when I get a chance.