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#automation (7)

Cheat sheets (7)

duti — Set Default Applications on macOS

Drive macOS Launch Services from the command line — assign default apps for UTIs, file extensions, and URL schemes; understand the viewer/editor/all/shell/none roles; bulk-load file associations from a settings file; rebuild the Launch Services database when changes refuse to stick.
duti macos cli launch-services default-apps uti automation web-researched

osascript — Run AppleScript and JXA From the Shell

Drive macOS GUI apps, system events, dialogs, notifications, and Finder from the terminal using AppleScript or JavaScript for Automation (JXA).
osascript applescript jxa macos automation scripting gui web-researched

Claude Code Hooks

Automate Claude Code lifecycle events with shell hooks — PreToolUse, PostToolUse, UserPromptSubmit, Notification, Stop, SubagentStop, and PreCompact. Covers configuration, environment variables, JSON I/O, exit codes, and blocking examples.
claude-code hooks automation lifecycle shell

codex exec — Non-Interactive Mode

Complete reference for codex exec — scripted invocation, stdin piping, JSON event streams, output formats, exit codes, timeouts, and automation patterns for CI, git hooks, and shell pipelines.
codex openai exec non-interactive cli automation ci scripting

cron — Scheduled Jobs

Time-based job scheduler on Unix. Covers crontab syntax, user vs. system crontabs, environment quirks, logging, anacron, and the modern systemd timer alternative.
cron scheduling sysadmin cli automation web-researched

make — Build Automation

Practical Makefile patterns: targets, prerequisites, automatic variables, pattern rules, parallel builds, and a working lint/test/build/clean workflow for any project.
make build automation scripting cli web-researched

notebooklm-py — Unofficial NotebookLM Client

Automate Google NotebookLM from Python with the unofficial notebooklm-py library. Covers authentication, notebook and source management, summaries, FAQ generation, and audio podcast creation.
python notebooklm google ai automation unofficial