pwd # Show current directory (e.g. /home/user)
ls -la # List files and directories (e.g. ls -la)
cd # Change directory (e.g. cd Documents)
mkdir folder # Create directory (e.g. mkdir project)
touch file.txt # Create file (e.g. touch notes.txt)
cat file.txt # View file (e.g. cat notes.txt)
nano file.txt # Edit file (e.g. nano notes.txt)
cp src dst # Copy file/folder (e.g. cp file.txt backup.txt)
mv src dst # Move or rename (e.g. mv file.txt newfile.txt)
rm file # Delete file (e.g. rm file.txt)
grep text file # Search text (e.g. grep "error" log.txt)
find . -name file # Find file (e.g. find . -name "*.log")
chmod +x script.sh # Make executable (e.g. chmod +x install.sh)
tail -f log.log # Watch log file (e.g. tail -f app.log)
history # Command history (e.g. history)
clear # Clear terminal (e.g. clear)
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