| File Navigation |
cd /path/to/dir |
Change directory |
| File Navigation |
ls -l |
List directory contents in long format |
| File Navigation |
pwd |
Print current directory |
| File Management |
cp src dest |
Copy files or directories |
| File Management |
mv src dest |
Move or rename files/directories |
| File Management |
rm file |
Remove a file |
| File Management |
mkdir dir |
Create new directory |
| File Management |
touch file |
Create new empty file |
| File Viewing |
cat file |
Display file contents |
| File Viewing |
less file |
View file page by page |
| File Viewing |
head file |
Show first 10 lines of file |
| File Viewing |
tail file |
Show last 10 lines of file |
| System Info |
uname -a |
Show system info |
| System Info |
top |
Show running processes |
| System Info |
df -h |
Show disk usage |
| System Info |
free -h |
Show memory usage |
| Package Management |
apt update |
Update package index (Debian/Ubuntu) |
| Package Management |
apt install pkg |
Install a package |
| Package Management |
yum install pkg |
Install a package (RHEL/CentOS) |
| User Management |
whoami |
Display current user |
| User Management |
sudo command |
Run command as root |
| User Management |
passwd |
Change user password |
| Networking |
ping host |
Send ICMP requests to host |
| Networking |
ifconfig |
Show IP configuration (deprecated) |
| Networking |
ip a |
Show IP addresses |
| Networking |
netstat -tuln |
Show listening ports |
| Permissions |
chmod 755 file |
Set permissions |
| Permissions |
chown user:group file |
Change file owner |
| Archives |
tar -czvf file.tar.gz dir/ |
Create gzip archive |
| Archives |
tar -xzvf file.tar.gz |
Extract gzip archive |
