Angle-grinder: Slice and dice logs on the command line

• Logdy.dev

  9 602 5.6 Go

  Web based real-time log viewer. Stream ANY content to a web UI with autogenerated filters. Parse any format with TypeScript.

  

For those who find this tool interesting, I can recommend to take a look at Logdy.dev (https://logdy.dev) https://github.com/logdyhq/logdy-core

• angle-grinder

  10 3,380 3.7 Rust

  Slice and dice logs on the command line

• InfluxDB

  www.influxdata.com featured

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• lnav

  78 6,762 9.6 C++

  Log file navigator

See https://lnav.org for a powerful mini-ETL CLI power tool; it embeds SQLite, supports ~every format, has great UX and easily handles a few million rows at a time.

• klp

  3 41 9.2 Python

  Kool Logfmt Parser: a CLI viewer for structured log files and streams (logfmt, JSONL and some others)

Angle-grinder is really nice and the successor of sumoshell (by the same author).

I maintain a list of tools like these as part of the docs for my own tool klp (https://github.com/dloss/klp), which I think has a few useful features that are not in angle-grinder, but is orders of magnitude slower, because it's implemented in pure Python instead of Rust.

• chainsaw

  14 2,559 8.3 Rust

  Rapidly Search and Hunt through Windows Forensic Artefacts

  

There’s already a DFIR log tool named chainsaw: https://github.com/WithSecureLabs/chainsaw

• stern

  1 10 - Go

  ⎈ Multi pod and container log tailing for Kubernetes (by rancher)

  

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Bonus recommendation, as it's something I use together with jq and agrind: stern (https://github.com/rancher/stern) — for live tail(1)ing of the O(N) pods of a k8s Deployment, right from the cluster, without any external log multiplexer.

    stern ingress-nginx-controller -i some_path_frag -o raw 2>/dev/null | agrind '* | json | where status == 403 | count by client_addr' 2>/dev/null

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