https://github.com/muntasirszn/linuxcommandscheatsheet
A cheatsheet for linux learners.
https://github.com/muntasirszn/linuxcommandscheatsheet
cheatsheet commands-cheatsheet linux linux-shell
Last synced: about 1 year ago
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A cheatsheet for linux learners.
- Host: GitHub
- URL: https://github.com/muntasirszn/linuxcommandscheatsheet
- Owner: MuntasirSZN
- License: mit
- Created: 2024-07-11T11:54:54.000Z (almost 2 years ago)
- Default Branch: main
- Last Pushed: 2024-07-28T06:08:42.000Z (almost 2 years ago)
- Last Synced: 2024-07-28T07:24:21.131Z (almost 2 years ago)
- Topics: cheatsheet, commands-cheatsheet, linux, linux-shell
- Language: HTML
- Homepage: https://muntasirmahmud.me/LinuxCommandsCheatSheet/
- Size: 2.62 MB
- Stars: 2
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE.md
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README
# Linux Commands Cheat Sheet 🐧📚📚
# Why this repo❓
A lot of people is learning linux, for development reasons. They sometimes forget the commands. To help them **memorize** the commands, I made this repo. This is my personal repo, where I keep all the commands I use. I hope this repo helps you too. I provided a short description with it, also usage and an example.**Remember**,these are bash commands.
# Table of Contents
- [Most Used Commands](#most-used-commands)
- [01.``ls``](#01ls)
- [02.``cd``](#02cd)
- [03.``pwd``](#03pwd)
- [04.``touch``](#04touch)
- [05.``mkdir``](#05mkdir)
- [06.``rm``](#06rm)
- [07.``cp``](#07cp)
- [08.``mv``](#08mv)
- [09.``cat``](#09cat)
- [10.``more``](#10more)
- [11. ``less``](#11-less)
- [12.``head``](#12head)
- [13.``tail``](#13tail)
- [14.``grep``](#14grep)
- [15.``find``](#15find)
- [16.``whereis``](#16whereis)
- [17.``which``](#17which)
- [18.``man``](#18man)
- [Not that much used Commands](#not-that-much-used-commands)
- [1.``chmod``](#1chmod)
- [2.``chown``](#2chown)
- [3.``whoami``](#3whoami)
- [4.``date``](#4date)
- [5.``cal``](#5cal)
- [6.``clear``](#6clear)
- [7.``echo``](#7echo)
- [8.``uname``](#8uname)
- [9.``uptime``](#9uptime)
- [10.``w``](#10w)
- [11.``who``](#11who)
- [12.``ps``](#12ps)
- [13.``kill``](#13kill)
- [14.``killall``](#14killall)
- [15.``pkill``](#15pkill)
- [16.``pgrep``](#16pgrep)
- [17.``top``](#17top)
- [18.``htop``](#18htop)
- [19.``free``](#19free)
- [20.``df``](#20df)
- [All in one chart](#all-in-one-chart)
- [Contributing](#contributing)
- [License](#license)
- [Author](#author)
- [Conclusion](#conclusion)
# Most Used Commands
## 01.``ls``
This command is used to list the files and directories in the current directory. You can either use ``ls`` or ``ls -l`` to list the files in long format. Or, you can use ``ls -a`` to list all files including hidden files. You can also use ``ls -lh`` to list the files in long format with human-readable file sizes. And, use ``ls -R`` to list all files in the subdirectories. And, use ``ls -t`` to list the files by last modified time. Also, use ``ls -S`` to list the files by file size. You can also specify the path after the ``ls`` command to list the files in that directory.
### Usage
```bash
ls
```
#### Output
```bash
Desktop Documents Downloads Music Pictures Videos
```
## 02.``cd``
This command is used to change the directory. You can use ``cd`` to change to the home directory. Or, you can use ``cd ..`` to move to the parent directory. You can also use ``cd -`` to move to the previous directory. You can also specify the path after the ``cd`` command to move to that directory. Or,use ``cd ../..`` to move two directories down. You can use ``cd ~`` to move to the home directory. You can also use ``cd /`` to move to the root directory. You can also use ``cd `` then the directory path to move to that directory.
### Usage
```bash
cd
```
#### Output
```bash
/home/username
```
## 03.``pwd``
This command is used to print the current working directory. You can use ``pwd`` to print the current working directory.
### Usage
```bash
pwd
```
#### Output
```bash
/home/username
```
## 04.``touch``
This command is used to create a new file. You can use ``touch`` then the file name to create a new file.
### Usage
```bash
touch file.txt
```
#### Output
```bash
file.txt
```
## 05.``mkdir``
This command is used to create a new directory. You can use ``mkdir`` then the directory name to create a new directory.
### Usage
```bash
mkdir directory
```
#### Output
```bash
directory
```
## 06.``rm``
This command is used to remove files or directories. You can use ``rm`` then the file name to remove a file. You can also use ``rm -r`` then the directory name to remove a directory. Or, ``rm -rf`` then the directory name to remove a directory forcefully. You can also use ``rm -i`` then the file name to remove a file interactively. You can append ``sudo`` before the ``rm`` command to remove a file or directory that requires root permission. Remember, the ``rm`` command is irreversible.
### Usage
```bash
rm file.txt
```
#### Output
If you use the command ``ls`` then you will see the file is removed.
## 07.``cp``
This command is used to copy files or directories. You can use ``cp`` then the source file name and the destination file name to copy a file. You can also use ``cp -r`` then the source directory name and the destination directory name to copy a directory. You can also use ``cp -i`` then the source file name and the destination file name to copy a file interactively. You can append ``sudo`` before the ``cp`` command to copy a file or directory that requires root permission.
### Usage
```bash
cp file.txt file2.txt
```
#### Output
```bash
file2.txt
```
### Usage Number 2
```bash
cp -r directory directory2
```
#### Output Number 2
```bash
directory2
```
You will see the files are copied.
## 08.``mv``
This command is used to move files or directories. You can use ``mv`` then the source file name and the destination file name to move a file. You can also use ``mv -i`` then the source file name and the destination file name to move a file interactively. You can append ``sudo`` before the ``mv`` command to move a file or directory that requires root permission.
### Usage
```bash
mv file.txt directory
```
#### Output
```bash
directory/file.txt
```
## 09.``cat``
This command is used to display the contents of a file. You can use ``cat`` then the file name to display the contents of a file. You can also use ``cat -n`` then the file name to display the contents of a file with line numbers. You can also use ``cat -b`` then the file name to display the contents of a file with line numbers except for blank lines. You can also use ``cat -s`` then the file name to display the contents of a file with multiple blank lines compressed into a single blank line.
### Usage
```bash
cat file.txt
```
#### Output
```bash
Hello World
```
If ``file.txt`` contains ``Hello World``, then the output will be ``Hello World``. If there is nothing, then the output will be empty.
## 10.``more``
This command is used to display the contents of a file one page at a time. You can use ``more`` then the file name to display the contents of a file one page at a time. You can use the ``space`` key to move to the next page. You can use the ``enter`` key to move to the next line. You can use the ``q`` key to quit the display. You can use the ``b`` key to move to the previous page.
### Usage
```bash
more file.txt
```
#### Output
```bash
Hello World
```
## 11. ``less``
This command is used to display the contents of a file one page at a time. You can use ``less`` then the file name to display the contents of a file one page at a time. You can use the ``space`` key to move to the next page. You can use the ``enter`` key to move to the next line. You can use the ``q`` key to quit the display. You can use the ``b`` key to move to the previous page. You can use the ``/`` key to search for a pattern in the file. You can use the ``n`` key to move to the next occurrence of the pattern. You can use the ``N`` key to move to the previous occurrence of the pattern. This command is similar to the ``more`` command. But, it is mainly used if the file is so big that no text editor can handle it.
### Usage
```bash
less file.txt
```
#### Output
```bash
Hello World
```
If ``file.txt`` contains ``Hello World``, then the output will be ``Hello World``. If there is nothing, then the output will be empty.
## 12.``head``
This command is used to display the first few lines of a file. You can use ``head`` then the file name to display the first few lines of a file. You can also use ``head -n`` then the number of lines and the file name to display the first few lines of a file. You can also use ``head -c`` then the number of bytes and the file name to display the first few bytes of a file.
### Usage
```bash
head file.txt
```
#### Output
```bash
This is the headline
```
If ``file.txt`` contains ``This is the headline`` at the headline, then the output will be ``This is the headline``. If there is nothing, then the output will be empty.
## 13.``tail``
This command is used to display the last few lines of a file. You can use ``tail`` then the file name to display the last few lines of a file. You can also use ``tail -n`` then the number of lines and the file name to display the last few lines of a file. You can also use ``tail -c`` then the number of bytes and the file name to display the last few bytes of a file. You can also use ``tail -f`` then the file name to display the last few lines of a file and keep the file open for new lines.
### Usage
```bash
tail file.txt
```
#### Output
```bash
This is the last line
```
If ``file.txt`` contains ``This is the last line`` at the end, then the output will be ``This is the last line``. If there is nothing, then the output will be empty.
## 14.``grep``
This command is used to search for a pattern in a file. You can use ``grep`` then the pattern and the file name to search for a pattern in a file. You can also use ``grep -i`` then the pattern and the file name to search for a pattern in a file case-insensitively. You can also use ``grep -v`` then the pattern and the file name to search for a pattern in a file inversely. You can also use ``grep -c`` then the pattern and the file name to search for a pattern in a file and display the count of the pattern. You can also use ``grep -n`` then the pattern and the file name to search for a pattern in a file and display the line numbers of the pattern. You can also use ``grep -l`` then the pattern and the file name to search for a pattern in a file and display the file names containing the pattern. You can also use ``grep -r`` then the pattern and the directory name to search for a pattern in a directory recursively.
### Usage
```bash
grep "pattern" file.txt
```
#### Output
```bash
pattern
```
If ``file.txt`` contains ``pattern`` 1 or more times, then the output will be ``pattern``. If there is nothing, then the output will be empty.
## 15.``find``
This command is used to find files or directories. You can use ``find`` then the directory name to find files or directories in a directory. You can also use ``find -name`` then the file name to find files or directories with the specified name. You can also use ``find -iname`` then the file name to find files or directories with the specified name case-insensitively. You can also use ``find -type`` then the file type to find files or directories with the specified type. You can also use ``find -empty`` to find empty files or directories. You can also use ``find -size`` then the file size to find files or directories with the specified size. You can also use ``find -exec`` then the command to execute the command on the found files or directories.
### Usage
```bash
find directory
```
#### Output
```bash
directory
```
If the directory exists, then the output will be the directory name. If there is nothing, then the output will be empty.
## 16.``whereis``
This command is used to find the binary, source, and manual page files for a command. You can use ``whereis`` then the command name to find the binary, source, and manual page files for a command.
### Usage
```bash
whereis ls
```
#### Output
```bash
ls: /bin/ls
```
## 17.``which``
This command is used to find the location of a command. You can use ``which`` then the command name to find the location of a command.
### Usage
```bash
which ls
```
#### Output
```bash
/bin/ls
```
## 18.``man``
This command is used to display the manual page of a command. You can use ``man`` then the command name to display the manual page of a command. You can use the ``space`` key to move to the next page. You can use the ``enter`` key to move to the next line. You can use the ``q`` key to quit the display. You can use the ``/`` key to search for a pattern in the manual page. You can use the ``n`` key to move to the next occurrence of the pattern. You can use the ``N`` key to move to the previous occurrence of the pattern.
### Usage
```bash
man brew
```
#### Output
```bash
BREW(1) Homebrew Manual BREW(1)
NAME
brew - The Missing Package Manager for macOS
SYNOPSIS
brew command [options] [formula]
brew help [command]
brew home
brew --version
brew --prefix
brew --cache
brew --cellar
brew --repository
brew update
brew list [--full-name]
brew search [text|/text/]
brew install formula
brew uninstall formula
brew info [formula]
brew deps formula
brew uses formula
brew outdated
brew upgrade [formula]
brew pin formula
brew unpin formula
brew list [formula]
brew cleanup
brew doctor
brew missing
brew link formula
brew unlink formula
brew switch formula
brew list --versions formula
brew cat formula
brew edit formula
brew create [URL [--no-fetch]]
brew home formula
brew options formula
brew install formula
brew fetch [formula]
brew update
brew upgrade
brew uninstall formula
brew pin formula
brew unpin formula
brew tap user/repo
brew tap --repair
brew tap --list
brew tap --prune
brew tap --search
brew tap --list-official
brew tap --list-pinned
brew tap --list-unpinned
brew tap --list-versions
brew tap --list-pinned-versions
brew tap --list-unpinned-versions
brew tap --list-pinned-official
brew tap --list-unpinned-official
brew tap --list-pinned-user
brew tap --list-unpinned-user
brew tap --list-pinned-user-versions
brew tap --list-unpinned-user-versions
brew tap --list-pinned-user-official
```
And, it will show you a lot more. I am not going to show you the whole manual page. This manual page is for homebrew. If you want to see the manual page of a command, then use ``man`` then the command name.
# Not that much used Commands
## 1.``chmod``
This command is used to change the permissions of a file or directory. You can use ``chmod`` then the permissions and the file name to change the permissions of a file or directory. You can also use ``chmod -R`` then the permissions and the directory name to change the permissions of a directory recursively. You can also use ``chmod u+x`` then the file name to add execute permission to the owner of the file. You can also use ``chmod g+x`` then the file name to add execute permission to the group of the file. You can also use ``chmod o+x`` then the file name to add execute permission to others. You can also use ``chmod a+x`` then the file name to add execute permission to all. You can also use ``chmod u-x`` then the file name to remove execute permission from the owner of the file. You can also use ``chmod g-x`` then the file name to remove execute permission from the group of the file. You can also use ``chmod o-x`` then the file name to remove execute permission from others. You can also use ``chmod a-x`` then the file name to remove execute permission from all. You can also use ``chmod u=rwx`` then the file name to set read, write, and execute permissions for the owner of the file. You can also use ``chmod g=rwx`` then the file name to set read, write, and execute permissions for the group of the file. You can also use ``chmod o=rwx`` then the file name to set read, write, and execute permissions for others. You can also use ``chmod a=rwx`` then the file name to set read, write, and execute permissions for all. You can also use ``chmod 777`` then the file name to set read, write, and execute permissions for all. You can also use ``chmod 755`` then the file name to set read, write, and execute permissions for the owner and read and execute permissions for the group and others. You can also use ``chmod 644`` then the file name to set read and write permissions for the owner and read permissions for the group and others. You can also use ``chmod 600`` then the file name to set read and write permissions for the owner and no permissions for the group and others. You can also use ``chmod 666`` then the file name to set read and write permissions for all. You can also use `` chmod 444`` then the file name to set read permissions for all. You can also use ``chmod 400`` then the file name to set read permissions for the owner and no permissions for the group and others. You can also use ``chmod 200`` then the file name to set write permissions for the owner and no permissions for the group and others. You can also use ``chmod 100`` then the file name to set execute permissions for the owner and no permissions for the group and others. You can also use ``chmod 000`` then the file name to set no permissions for all.
### Usage
```bash
chmod 777 file.txt
```
#### Output
```bash
file.txt
```
If you use the command ``ls -l`` then you will see the permissions are changed.
## 2.``chown``
This command is used to change the owner of a file or directory. You can use ``chown`` then the owner name and the file name to change the owner of a file or directory. You can also use ``chown -R`` then the owner name and the directory name to change the owner of a directory recursively. You can also use ``chown owner:group`` then the owner name, group name, and the file name to change the owner and group of a file or directory. You can also use ``chown -R owner:group`` then the owner name, group name, and the directory name to change the owner and group of a directory recursively.
### Usage
```bash
chown owner file.txt
```
#### Output
```bash
file.txt
```
If you use the command ``ls -l`` then you will see the owner is changed.
## 3.``whoami``
This command is used to print the current user. You can use ``whoami`` to print the current user.
### Usage
```bash
whoami
```
#### Output
```bash
username
```
## 4.``date``
This command is used to print the current date and time. You can use ``date`` to print the current date and time. The format will be ``Day, Date, Month, Year, Time, Timezone``.
### Usage
```bash
date
```
#### Output
```bash
Sun 10 Oct 2021 10:10:10 PM IST
```
## 5.``cal``
This command is used to print the calendar of the current month. You can use ``cal`` to print the calendar of the current month.
### Usage
```bash
cal
```
#### Output
```bash
October 2021
Su Mo Tu We Th Fr Sa
1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31
```
## 6.``clear``
This command is used to clear the terminal. You can use ``clear`` to clear the terminal. You can do ctrl+l to clear the terminal too.
### Usage
```bash
clear
```
#### Output
```bash
```
You will see the terminal is cleared.
## 7.``echo``
This command is used to print a message. You can use ``echo`` then the message to print a message. You can also use ``echo -e`` then the message to print a message with escape characters interpreted. You can also use ``echo -n`` then the message to print a message without a newline.
### Usage
```bash
echo "Hello World"
```
#### Output
```bash
Hello World
```
## 8.``uname``
This command is used to print the system information. You can use ``uname`` to print the system information. You can also use ``uname -a`` to print all the system information. You can also use ``uname -s`` to print the system name. You can also use ``uname -n`` to print the network node hostname. You can also use ``uname -r`` to print the kernel release. You can also use ``uname -v`` to print the kernel version. You can also use ``uname -m`` to print the machine hardware name. You can also use ``uname -p`` to print the processor type. You can also use ``uname -i`` to print the hardware platform. You can also use ``uname -o`` to print the operating system.
### Usage
```bash
uname
```
#### Output
```bash
Linux
```
## 9.``uptime``
This command is used to print the uptime of the system. You can use ``uptime`` to print the uptime of the system.
### Usage
```bash
uptime
```
#### Output
```bash
10:10:10 up 10 days, 10:10, 10 users, load average: 1.10, 1.10, 1.10
```
If the system is up for 10 days,10 hours,10 minutes, then the output will be ``10:10:10 up 10 days, 10:10, 10 users, load average: 1.10, 1.10, 1.10``. If there is nothing, then the output will be empty.
## 10.``w``
This command is used to print the users who are currently logged in and what they are doing. You can use ``w`` to print the users who are currently logged in and what they are doing.
### Usage
```bash
w
```
#### Output
```bash
10:10:10 up 10 days, 10:10, 10 users, load average: 1.10, 1.10, 1.10
USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
username tty1 :0 10:10 10:10 10:10 10:10 -bash
```
If the user is logged in and is doing something, then the output will be the user's information. If there is nothing, then the output will be empty.
## 11.``who``
This command is used to print the users who are currently logged in. You can use ``who`` to print the users who are currently logged in.
### Usage
```bash
who
```
#### Output
```bash
username tty1 2021-10-10 10:10 (:0)
```
If the user is logged in, then the output will be the user's information. If there is nothing, then the output will be empty.
## 12.``ps``
This command is used to print the currently running processes. You can use ``ps`` to print the currently running processes. You can also use ``ps -e`` to print all the processes. You can also use ``ps -f`` to print the full-format listing. You can also use ``ps -l`` to print the long-format listing. You can also use ``ps -u`` then the username to print the processes of the user. You can also use ``ps -aux`` to print all the processes in full-format listing.
### Usage
```bash
ps
```
#### Output
```bash
PID TTY TIME CMD
123 tty1 00:00:00 bash
```
If the process is running, then the output will be the process information. It will also show system running processes.
## 13.``kill``
This command is used to kill a process. You can use ``kill`` then the process ID to kill a process. You can also use ``kill -9`` then the process ID to kill a process forcefully. You can also use ``kill -l`` to list all the signals.
### Usage
```bash
kill 123
```
#### Output
```bash
```
If the process is killed, then the output will be empty.
## 14.``killall``
This command is used to kill all processes by name. You can use ``killall`` then the process name to kill all processes by name. You can also use ``killall -9`` then the process name to kill all processes by name forcefully.
### Usage
```bash
killall bash
```
#### Output
```bash
```
If the process is killed, then the output will be empty.
## 15.``pkill``
This command is used to kill a process by name. You can use ``pkill`` then the process name to kill a process by name. You can also use ``pkill -9`` then the process name to kill a process by name forcefully.
### Usage
```bash
pkill bash
```
#### Output
```bash
```
If the process is killed, then the output will be empty.
## 16.``pgrep``
This command is used to find the process ID by name. You can use ``pgrep`` then the process name to find the process ID by name.
### Usage
```bash
pgrep bash
```
#### Output
```bash
123
```
If the process is found, then the output will be the process ID. If there is nothing, then the output will be empty.
## 17.``top``
This command is used to display the dynamic real-time view of a running system. You can use ``top`` to display the dynamic real-time view of a running system. You can use the ``q`` key to quit the display.
### Usage
```bash
top
```
#### Output
```bash
top - 10:10:10 up 10 days, 10:10, 10 users, load average: 1.10, 1.10, 1.10
Tasks: 123 total, 1 running, 122 sleeping, 0 stopped, 0 zombie
%Cpu(s): 10.0 us, 10.0 sy, 10.0 ni, 10.0 id, 10.0 wa, 10.0 hi, 10.0 si, 10.0 st
MiB Mem : 1000.0 total, 100.0 free, 900.0 used, 100.0 buff/cache
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
123 username 20 0 100.0m 10.0m 10.0m S 10.0 1.0 10:10.10 bash
```
If the system is running, then the output will be the system information. If there is nothing, then the output will be empty.
## 18.``htop``
This command is used to display the dynamic real-time view of a running system. You can use ``htop`` to display the dynamic real-time view of a running system. You can use the ``q`` key to quit the display.
### Usage
```bash
htop
```
#### Output
## 19.``free``
This command is used to display the amount of free and used memory in the system. You can use ``free`` to display the amount of free and used memory in the system.
### Usage
```bash
free
```
#### Output
```bash
total used free shared buff/cache available
Mem: 1000.0 900.0 100.0 10.0 100.0 100.0
Swap: 1000.0 900.0 100.0
```
## 20.``df``
This command is used to display the amount of disk space available on the file system. You can use ``df`` to display the amount of disk space available on the file system. You can also use ``df -h`` to display the amount of disk space available on the file system in human-readable format. You can also use ``df -T`` to display the amount of disk space available on the file system with the file system type.
### Usage
```bash
df
```
#### Output
```bash
Filesystem 1K-blocks Used Available Use% Mounted on
udev 1000000 0 1000000 0% /dev
tmpfs 1000000 100 100000 1% /run
/dev/sda1 1000000 10000 900000 1% /
tmpfs 1000000 100 100000 1% /dev/shm
tmpfs 1000000 100 100000 1% /run/lock
tmpfs 1000000 100 100000 1% /sys/fs/cgroup
/dev/sda2 1000000 10000 900000 1% /home
tmpfs 1000000 100 100000 1% /run/user/1000
```
# All in one chart
| Command | Description | Usage |
| ----------- | ------------------------------------------------------------------- | --------------------------- |
| ``ls`` | List files and directories | ``ls`` |
| ``cd`` | Change directory | ``cd`` |
| ``pwd`` | Print current working directory | ``pwd`` |
| ``touch`` | Create a new file | ``touch file.txt`` |
| ``mkdir`` | Create a new directory | ``mkdir directory`` |
| ``rm`` | Remove files or directories | ``rm file.txt`` |
| ``cp`` | Copy files or directories | ``cp file.txt file2.txt`` |
| ``mv`` | Move files or directories | ``mv file.txt directory`` |
| ``cat`` | Display the contents of a file | ``cat file.txt`` |
| ``more`` | Display the contents of a file one page at a time | ``more file.txt`` |
| ``less`` | Display the contents of a file one page at a time | ``less file.txt`` |
| ``head`` | Display the first few lines of a file | ``head file.txt`` |
| ``tail`` | Display the last few lines of a file | ``tail file.txt`` |
| ``grep`` | Search for a pattern in a file | ``grep "pattern" file.txt`` |
| ``find`` | Find files or directories | ``find directory`` |
| ``whereis`` | Find the binary, source, and manual page files for a command | ``whereis ls`` |
| ``which`` | Find the location of a command | ``which ls`` |
| ``man`` | Display the manual page of a command | ``man brew`` |
| ``chmod`` | Change the permissions of a file or directory | ``chmod 777 file.txt`` |
| ``chown`` | Change the owner of a file or directory | ``chown owner file.txt`` |
| ``whoami`` | Print the current user | ``whoami`` |
| ``date`` | Print the current date and time | ``date`` |
| ``cal`` | Print the calendar of the current month | ``cal`` |
| ``clear`` | Clear the terminal | ``clear`` |
| ``echo`` | Print a message | ``echo "Hello World"`` |
| ``uname`` | Print the system information | ``uname`` |
| ``uptime`` | Print the uptime of the system | ``uptime`` |
| ``w`` | Print the users who are currently logged in and what they are doing | ``w`` |
| ``who`` | Print the users who are currently logged in | ``who`` |
| ``ps`` | Print the currently running processes | ``ps`` |
| ``kill`` | Kill a process | ``kill 123`` |
| ``killall`` | Kill all processes by name | ``killall bash`` |
| ``pkill`` | Kill a process by name | ``pkill bash`` |
| ``pgrep`` | Find the process ID by name | ``pgrep bash`` |
| ``top`` | Display the dynamic real-time view of a running system | ``top`` |
| ``htop`` | Display the dynamic real-time view of a running system | ``htop`` |
| ``free`` | Display the amount of free and used memory in the system | ``free`` |
| ``df`` | Display the amount of disk space available on the file system | ``df`` |
# Contributing
If you want to contribute to this repo, then you can fork this repo and make a pull request. I will review the pull request and merge it if it is good. You can also open an issue if you find any bugs or want to suggest something. I will try to fix the issue as soon as possible.# Contributing
Contributions are what make the open-source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**.
1. Fork the Project
2. Create your Feature Branch
3. Commit your Changes
4. Push to the Branch
5. Open a Pull Request
# License
This repo is licensed under the MIT license. See [LICENSE.md](LICENSE.md) for more details.
# Author
Muntasir Mahmud (Also known in GitHub as MuntasirSZN)
# Conclusion
I hope this repo helps you to memorize the linux commands. If you have any questions, then you can ask me in the issues section. I will try to answer your questions as soon as possible. If you want to contribute to this repo, then you can fork this repo and make a pull request. I will review the pull request and merge it if it is good. I hope this repo helps you. Thank you for reading this repo. Have a nice day. Goodbye.👋👋👋
**And**, don't forget to give a star to this repo.⭐⭐⭐