Brew

brew_is_installed¶

Check whether one or more Homebrew packages are installed. Exits the process (exit 1) if brew itself is not found. Prints a status line for each package and returns 1 if any package is missing.

Arguments¶

• $1 (string): One or more package names (space-separated or multiple args)

Exit codes¶

• 0: All packages are installed
• 1: One or more packages are not installed, or brew is not found

Output on stdout¶

• One status line per package indicating installed or not