Common Commands
Command Description
pwd Print current directory (where am I?)
cd <folder> Change directory
mkdir <name> Create a new folder
rm <file> Delete a file (permanent!)
rm -r <folder> Delete a folder and its contents
cp <src> <dest> Copy a file
cp -r <src> <dest> Copy a folder and its contents
mv <src> <dest> Move or rename a file/folder
touch <file> Create an empty file
chmod +x <file> Make a file executable (run as script)
which <command> Show where a command lives
du -sh <folder> Show folder size (human-readable)
df -h Show disk space usage
grep "text" <file> Search for text inside a file
grep -r "text" <folder> Search for text in all files in a folder
find . -name "*.pdf" Find files by name pattern
head -20 <file> Show first 20 lines of a file
tail -20 <file> Show last 20 lines of a file
wc -l <file> Count lines in a file
open <file> Open file with default macOS app
open . Open current folder in Finder
clear Clear the terminal screen
history Show your command history
sudo <command> Run a command as admin (asks for password)

Use Tab to autocomplete and โ†‘ to recall previous commands!