Collection

streamzip

File-less compression of data passed in through stdin.

say

Convert text to audible speech.

sqlite3

Query and manage sqlite databases.

hdiutil

Manipulate disk images using the DiskImages framework.

textutil

Manipulate text files in various formats.

ditto

Copy files and directories while preserving file attributes and permissions.

tmutil

Manage Time Machine backups.

screencapture

Capture a screenshot from command line.

ioreg

Displays a hierarchial view of the I/O Kit registry.

osascript

Execute AppleScripts and other OSA language scripts and commands.

pbpaste

Paste the contents of clipboard to the terminal.