Commandes-Linux
Cheatsheet
email=rpm@ramix.org
Cheatsheet
email=rpm@ramix.org
Podcast relatif à la recherche de fichiers :
https://www.youtube.com/watch?v=UPvYLACIz0Q
https://forum.ubuntu-fr.org/viewtopic.php?id=1270591
https://bootlin.com/doc/legacy/command-line/
https://www.ionos.fr/digitalguide/serveur/configuration/commande-scp-de-linux/
https://guillaume.fenollar.fr/blog/top-lire-comprendre-analyser-la-commande-top/
https://librecours.net/modules/linux/linux-utilisateurs-droits/solweb/co/gestion-droits.html
https://www.ionos.fr/digitalguide/serveur/configuration/commande-cat-de-linux/
https://www.h-k.fr/minimax.info.003LDCPE
https://www.youtube.com/watch?v=Yjd1WJOlbNk
https://www.ffii.fr/~ramix/linux/find.pdf
=== Basic Navigation ===
`pwd` = Show current directory
`ls` = List files and directories
`ls -l` = Long listing format
`ls -a` = Show hidden files
`cd dirname` = Change directory
`cd ..` = Move up one directory
`cd /` = Go to root
`cd ~` = Go to home
`clear` = Clear terminal
`history` = Show command history
=== File & Directory Management ===
`touch file` = Create an empty file
`mkdir dir` = Create directory
`rmdir dir` = Remove empty directory
`rm file` = Remove file
`rm -r dir` = Remove directory recursively
`cp src dest` = Copy file
`cp -r src dest` = Copy directory
`mv src dest` = Move or rename
`cat file` = View file content
`less file` = Paginated view
`head file` = First 10 lines
`tail file` = Last 10 lines
`tail -f file` = Live file output
=== Permissions & Ownership ===
`chmod 755 file` = Change permissions
`chmod u+x file` = Make executable
`chown user:group file` = Change owner
`ls -l` = View permissions
df -T = determination du TYPE de fichiers ( ext4, vfat .... )
=== System Info ===
`uname -a` = Full system info
`hostname` = Show system hostname
`uptime` = System uptime
`top` = Running processes
`htop` = Interactive process viewer
`df -h` = Disk space usage
`du -sh *` = Directory sizes
`free -h` = Memory usage
`lscpu` = CPU info
`lsblk` = Block devices
=== Process Management ===
`ps` = Show processes
`ps aux` = Detailed process list
`kill PID` = Kill process
`killall name` = Kill by name
`bg` = Resume in background
`fg` = Bring to foreground
`jobs` = List jobs
=== Networking ===
`ifconfig` = Network info
`ip a` = Show IP addresses
`ping host` = Test connection
`ss -tuln` = Show open ports
`curl url` = Get data from URL
`wget url` = Download file
`ssh user@host` = Remote login
`scp file user@host:/path` = Secure copy
=== Package Management (Ubuntu/Debian) ===
`sudo apt update` = Refresh packages
`sudo apt upgrade` = Upgrade all
`sudo apt install pkg` = Install package
`sudo apt remove pkg` = Remove package
`sudo apt autoremove` = Clean leftovers
=== Package Management (RHEL/CentOS) ===
`sudo yum update`
`sudo yum install pkg`
`sudo yum remove pkg`
`sudo dnf install pkg`
=== Archiving & Compression ===
`tar -cvf file.tar dir` = Create tar
`tar -xvf file.tar` = Extract tar
`gzip file` = Compress
`gunzip file.gz` = Decompress
`zip http://file.zip files` = Zip
`unzip http://file.zip` = Unzip
=== User Management ===
`whoami` = Current user
`who` = Logged-in users
`id` = User info
`sudo adduser user` = Add user
`sudo passwd user` = Change password
`sudo deluser user` = Remove user
`su user` = Switch user
`logout` = Exit session
=== Shutdown & Reboot ===
`sudo shutdown now` = Shutdown
`sudo shutdown -r now` = Reboot
`reboot` = Restart
`poweroff` = Power off
=== Searching and replacing ===
`find /path -name file` = Search by name
`grep 'text' file` = Search inside file
`grep -r 'text' dir` = Recursive search
`locate file` = Fast search
`updatedb` = Update locate database
sed -i "s/Alex_/Alexandra_/g" /home/alex/monfichier.txt
=== Disks & Filesystems ===
`fdisk -l` = List partitions
`mkfs.ext4 /dev/sdX` = Format disk
`mount /dev/sdX /mnt` = Mount
`umount /mnt` = Unmount
cat /proc/filesystems
=== Environment & Variables ===
`echo $PATH` = Show PATH
`export VAR=value` = Set variable
`env` = Show all variables
=== Useful Commands ===
`man cmd` = Manual pages
`alias ll='ls -la'` = Create shortcut
`date` = Show date/time
`cal` = Show calendar
`exit` = Close terminal