# 使用 Homebrew, apt, dnf 安装 since

查看 since 的安装路径、可执行文件、元数据以及面向 AI 代理工作流的安全说明。

## 安装

```sh
sudo av install brew:since
```

其他安装命令:

### macOS

- Homebrew (100%):

```sh
brew install since
```

  证据: local Homebrew formula metadata

### Linux

- Debian apt (92%):

```sh
sudo apt install since
```

  证据: Debian stable package indexes: since from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz

- dnf (92%):

```sh
sudo dnf install since
```

  证据: Fedora Rawhide package metadata: since from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/210a2053c8e007daf9ae39c2a21daaed9b2ddd07d63ecffa597050361e73650c-primary.xml.zst

## 软件包事实

- **软件包键:** brew:since
- **软件包管理器:** Homebrew
- **软件包管理器页面:** <https://formulae.brew.sh/formula/since>
- **版本:** 1.1
- **来源摘要:** Stateful tail: show changes to files since last check
- **主页:** <http://welz.org.za/projects/since>
- **上游文档:** <http://welz.org.za/projects/since>
- **许可证:** GPL-3.0-or-later
- **源码归档:** <https://deb.debian.org/debian/pool/main/s/since/since_1.1.orig.tar.gz>
- **已生成:** 2026-08-04T22:13:35+00:00

## 可执行文件

- since (cli)
- since (别名)

## 安装行为

- post-install 钩子: 未定义
- Bottle: 可用 于 arm64_big_sur, arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, big_sur, catalina, monterey, sonoma, ventura

## 版本和新鲜度

- 页面生成时间: 2026-08-04
- 管理器版本: 1.1
- 本地数据: OK
- 上游仓库: http://welz.org.za/projects/since
- 信息: No package-manager update timestamp was available.
- 信息: Release/tag comparison is only available for GitHub repositories.
## 项目历史与用法

since is a small Unix utility for stateful log tailing: it prints only the content appended to files since the last run.

### 项目历史

The official homepage describes since as a tail-like Unix utility for monitoring growing log files. The official source archive includes a manpage dated July 1998, and the homepage offers an old stable 0.5 source archive plus a 1.1 rewrite with more features.

### 采用历史

The official homepage links to Debian and FreeBSD distribution pages, and the input records packages for Homebrew, Debian, Fedora/DNF, and Ubuntu. That adoption pattern fits a tiny admin utility preserved by Unix package collections.

### 使用方式

Users run since against log files, commonly under /var/log, to see only new lines after a previous check. The manpage documents follow mode, quiet and relaxed modes, compressed-extension skipping, and an explicit state-file option.

### 为什么软件包爱好者会关心

Package nerds care because since is a minimal example of a Unix command that does one operational job, stores simple state, and avoids a larger log-monitoring stack when a shell session is enough.

### 时间线

- 1998: Official manpage in the source archive is dated July 1998.
- 2000s: Official homepage lists 0.5 as old and stable and 1.1 as a rewrite with more features.
- 2026: Input package-manager facts list Homebrew, Debian, Fedora/DNF, and Ubuntu packages.

### Related projects

- Related tools include tail, logger, stat, shell aliases for log monitoring, and other stateful log-following scripts.

### 来源

- <http://welz.org.za/projects/since>
- <http://welz.org.za/projects/since/since-1.1.tar.gz>
- source_facts.package-manager


## 安全说明

narrow executable package without higher-risk signals.

- **Geiger 风险:** 绿色 / 低
- narrow executable package without higher-risk signals

## 源数据库详情

- **Source Database:** Homebrew formula API
- **Tap:** homebrew/core
- **Full Name:** since
- **Version Scheme:** 0
- **Revision:** 0
- **Bottle Stable Root URL:** <https://ghcr.io/v2/homebrew/core>
- **Deprecated:** no
- **Disabled:** no
- **Keg Only:** no
- **URL Keys:** stable

## 其他软件包管理器记录

- Debian apt - since - 1.1-7: normalized package name match | Debian stable package indexes: since from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | tail(1) work-alike that saves and uses state information | http://welz.org.za/projects/since
- Ubuntu apt - since - 1.1-7: normalized package name match | Ubuntu 24.04 LTS package indexes: since from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | tail(1) work-alike that saves and uses state information | http://welz.org.za/projects/since
- dnf - since - 1.1-34.fc45: normalized package name match | Fedora Rawhide package metadata: since from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/210a2053c8e007daf9ae39c2a21daaed9b2ddd07d63ecffa597050361e73650c-primary.xml.zst | Stateful tail replacement | http://welz.org.za/projects/since


## 相关链接

- [Terminal utility packages](https://pkg.so/zh-hans/terminal-utilities/) - Matched terminal and command-line workflow metadata.
- [Networking and protocol packages](https://pkg.so/zh-hans/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata.
- [Web development packages](https://pkg.so/zh-hans/web-dev-tools/) - Matched web development metadata.
- [Homebrew utility packages](https://pkg.so/zh-hans/brew-utility-packages/) - Matched Homebrew package provider.
- [multitail](https://pkg.so/zh-hans/brew/multitail/) - Shares pkgdb curated category or tags: cli, log-monitoring, system, tail.
- [colortail](https://pkg.so/zh-hans/brew/colortail/) - Shares pkgdb curated category or tags: cli, system, tail.
- [sec](https://pkg.so/zh-hans/brew/sec/) - Shares pkgdb curated category or tags: cli, log-monitoring, system.
- [xz](https://pkg.so/zh-hans/brew/xz/) - Shares pkgdb curated category or tags: cli, system.
- [zstd](https://pkg.so/zh-hans/brew/zstd/) - Shares pkgdb curated category or tags: cli, system.
- [lz4](https://pkg.so/zh-hans/brew/lz4/) - Shares pkgdb curated category or tags: cli, system.
- [coreutils](https://pkg.so/zh-hans/brew/coreutils/) - Shares pkgdb curated category or tags: cli, system.
- [unzip](https://pkg.so/zh-hans/brew/unzip/) - Shares pkgdb curated category or tags: cli, system.
- [apachetop](https://pkg.so/zh-hans/brew/apachetop/) - Local package facts share a topical domain. Shared terms: cli, log, monitoring, system.

## Combined YAML source

View the package source record on GitHub. [combined/since.yml](https://github.com/mxcl/pkgdb/blob/main/combined/since.yml)


## 来源

- pkg.so package database
- Geiger risk classifier
- package-page enrichment
- curated package history
- package version freshness
- pkgdb category and tag curation
- package relationship graph
- external package-manager database matches
- cross-ecosystem install command graph