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

1. Logdy.dev

   1 16 1,776 7.8 Go

   Realtime log viewer with web UI, tail -f for logs with a web interface browser.

   

   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

2. InfluxDB

   www.influxdata.com featured

   InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

   

3. angle-grinder

   2 11 3,622 6.4 Rust

   Slice and dice logs on the command line

   

4. lnav

   3 85 8,898 9.8 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.

5. klp

   4 6 152 9.4 Python

   Lightweight CLI viewer for structured log files and streams (logfmt, JSONL and many 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.

6. chainsaw

   5 14 3,201 7.9 Rust

   Rapidly Search and Hunt through Windows Forensic Artefacts

   

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

7. stern

   6 1 29 - 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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