macOS
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brew install cflocal Homebrew formula metadata
brew
Install cf with Homebrew
Filter to replace numeric timestamps with a formatted date time. Version 1.2.8 via Homebrew; verified from local package data.
install
Additional install commands
overview
Package summary
Filter to replace numeric timestamps with a formatted date time
Project links
Commands and aliases
- cf
history
Project history and usage
cf is a small Unix command-line filter from Lawrence Berkeley National Laboratory for replacing numeric timestamps at the beginning of input lines with formatted dates. Its manual page documents stdin/file filtering, strftime formatting, UTC output, strict timestamp checking, and preservation of sub-second timestamp data.
Project history
The distributed source archive carries a BSD-style University of California copyright covering 2004, 2005, 2006, 2009, and 2014. The CHANGES file records v1.1 in 2004 as the first autoconf version, v1.2.1 in 2006 adding CFTIMEARGS, and later maintenance releases through v1.2.8 in 2024.
Adoption history
cf appears in this batch as a Homebrew formula and is distributed directly from LBL's download directory as versioned tarballs. Its packaging value is as a tiny log-processing utility rather than a large upstream ecosystem.
How it is used
cf is used in pipelines that need human-readable timestamps in log-like text. It reads named files or stdin, replaces leading epoch timestamps, honors CFTIMEARGS as default flags when no command-line flags are specified, and supports custom strftime formats.
Why package nerds care
This is the kind of small, old-school Unix filter package that survives because it does one job cleanly. It is package-nerd interesting precisely because the upstream is a versioned source tarball with a manpage and CHANGES file, not a modern hosted repository.
Timeline
- 2004: v1.1 recorded as the first autoconf version.
- 2006: v1.2.1 released with CFTIMEARGS support.
- 2014: v1.2.5 maintenance release updated install and copyright details.
- 2024: v1.2.7 and v1.2.8 released.
Related projects
- The cf(1) manual page lists hf(1) and strftime(3) as related interfaces.
Sources
security posture
No protected-tool coverage found yet
No matching local secret-handling manifest was found for cf. Nucleus package metadata is still published here so future coverage has a stable package URL.
Install behavior
- No Homebrew post-install hook is recorded in formula metadata.
- Homebrew bottle metadata is available for 10 platform targets.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
cf | cli | global executable |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-07-25
manager version1.2.8
manager updated
local dataok
upstreamnot checked
latest detectednot detected
- infoNo package-manager update timestamp was available.low confidence
- infoRelease/tag comparison is only available for GitHub repositories.https://ee.lbl.gov/none confidence
install metadata
Package metadata
| Package key | brew:cf |
|---|---|
| Version | 1.2.8 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/cf |
| Homepage | https://ee.lbl.gov/ |
| Upstream docs | https://ee.lbl.gov/downloads/cf |
| License | BSD-3-Clause |
| Source archive | https://ee.lbl.gov/downloads/cf/cf-1.2.8.tar.gz |
| Bottle | available (on arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, monterey, sonoma, ventura, x86_64_linux) |
| Homebrew post-install | not defined |
| Service | none declared |
registry facts
Source database details
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | cf |
| Version Scheme | 0 |
| Revision | 0 |
| Conflicts With |
|
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Nucleus package database
- av.db category and tag curation
- cross-ecosystem install command graph
- curated package history
- package relationship graph
- package version freshness
- package-page enrichment