macOS
brew install lockrunlocal Homebrew formula metadata
brew
lockrun のインストール経路、実行ファイル、メタデータ、AI エージェント向けセキュリティノートを確認します。
インストール
brew install lockrunlocal Homebrew formula metadata
sudo apk add lockrunAlpine Linux edge package indexes · lockrun · ソース: dl-cdn.alpinelinux.org
概要
Run cron jobs with overrun protection
履歴
lockrun is a small public-domain Unix utility by Steve Friedl for running cron jobs with overrun protection. It wraps a command, takes an advisory file lock, and prevents overlapping invocations from piling up.
The official Unixwiz.net page explains that lockrun was created in response to network-monitoring cron jobs that could run longer than their schedule interval. The tool was designed as a protective wrapper that checks whether another protected instance is already running before launching the requested command.
lockrun is distributed as portable C source code rather than through a hosted source repository. The official page documents building it with `gcc lockrun.c -o lockrun` and installing it into `/usr/local/bin`.
The tool's natural audience is Unix administrators with cron jobs that must not overlap, especially polling and monitoring jobs. It was tested on FreeBSD and Linux, received a report of working on Mac OS X, and later gained portability work such as Solaris `lockf()` support.
Homebrew and Alpine packaging made the small C utility easier to install without manually downloading and compiling the source file.
A typical crontab entry invokes `lockrun --lockfile=/var/run/name.lockrun -- command`. If the lock cannot be acquired, lockrun exits instead of launching a second copy; `--wait`, `--quiet`, `--verbose`, and `--maxtime` adjust behavior.
The official documentation warns that the lockfile should be placed in a directory protected from other users and not in `/tmp`, because a writable directory could enable symlink attacks against the lockfile path.
lockrun is package-manager-relevant because it solves a narrow operations problem with one C file and no daemon. It overlaps with `flock(1)` patterns, but its documented cron-oriented interface made it a remembered admin tool.
Its packaging story is also a reminder that not every useful Unix package has a modern VCS repository; sometimes the authoritative upstream is a source file and a carefully written HTML manual.
セキュリティ状態
narrow executable package without higher-risk signals.
リスク グリーン · 信頼度 低 · appliance
エージェントに無人実行させる前に、このツールが平文の認証情報を読むか、リモート状態を書き込むか、成果物を公開するか、プラグインを起動するかを確認してください。
実行可能ファイル
| コマンド | 種類 | 公開範囲 | メモ |
|---|---|---|---|
lockrun | cli | グローバル実行可能ファイル |
鮮度
これらの信号は、ページ生成時期、パッケージマネージャの活動、上流リリース比較を分けて示します。バージョン遅れは、証拠 URL と比較可能なバージョンがある場合だけ警告されます。
http://unixwiz.net/tools/lockrun.html
インストールメタデータ
| パッケージキー | brew:lockrun |
|---|---|
| バージョン | 1.1.3 |
| パッケージマネージャ | Homebrew |
| パッケージマネージャページ | https://formulae.brew.sh/formula/lockrun |
| ホームページ | http://unixwiz.net/tools/lockrun.html |
| 上流ドキュメント | http://unixwiz.net/tools/lockrun.html |
| ライセンス | LicenseRef-Homebrew-public-domain |
| ソースアーカイブ | http://unixwiz.net/tools/lockrun.c |
| 最終更新 | 2026-05-19T13:03:29-04:00 |
| Pulse | updated |
| Bottle | 利用可能 (対象 arm64_big_sur, arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, big_sur, catalina, monterey, sonoma, ventura, x86_64_linux) |
| Homebrew post-install | 未定義 |
| サービス | 宣言なし |
レジストリ情報
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | lockrun |
| Version Scheme | 0 |
| Revision | 0 |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | yes |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
ソースデータベース一致
一致は外部パッケージマネージャインデックスから取得され、ローカルの Automic Vault パッケージリンクとは分けて表示されます。
lockrun 1.1.3-r1
Run cron job with overrun protection
http://unixwiz.net/tools/lockrun.html
sudo apk add lockrunソース経路
このページは scripts/generate-pkg-sqlite.py が生成した非公開のパッケージ SQLite アーティファクトから av-web によって提供されます。
View the package source record on GitHub.