pwru
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| pwru | up | |
|---|---|---|
| 7 | 25 | |
| 2,464 | 8,141 | |
| 6.9% | - | |
| 9.1 | 0.0 | |
| 2 days ago | 8 months ago | |
| C | Go | |
| Apache License 2.0 | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
pwru
- GitHub - cilium/pwru: Packet, where are you? -- eBPF-based Linux kernel networking debugger
- cilium/pwru: Packet, where are you? -- eBPF-based Linux kernel networking debugger
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Packet, where are you? – eBPF-based Linux kernel networking debugger
if you have a recent enough kernel, this change https://github.com/cilium/pwru/pull/148 means that it will print the reason the packet was dropped in the output - see https://lwn.net/Articles/885729/
There's a whole heap of reasons a packet can be dropped:
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A list of new(ish) command line tools – Julia Evans
[pwru](https://github.com/cilium/pwru) is a fun new tool from the Cilium folks for tracing network packets in the kernel. Like tcpdump but it shows you the full path including kernel syscalls. Lets you debug much deeper than "when the packet gets to this port it gets dropped".
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Better visibility into Linux packet-dropping decisions
I recently came across another useful utility for debugging unexpected packet drops - PWRU[0] (Packet, Where Are You) by Cilium.
It uses eBPF to try to trace the path of the packet through the kernel. Haven't needed to use it yet, but it could have saved me a lot of trouble in the past.
[0]: https://github.com/cilium/pwru
up
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Fx – Terminal JSON Viewer
This fx rewrite is very exciting. I'll have to try it. I thought of fx as a wrapper around jq, that allowed quick iteration over building jq scripts. Sort of an Ultimate Plumber [1] but only for jq. It looks like it is now more like a JavaScript processor plus an interactive viewer.
Someone mention Visidata[2]? VisiData is also a TUI that is great on tabular data, and it can work with json. If your JSON is mostly tabular in nature, Visidata does a great job at showing that data and allowing you to explore it. A lot of json I deal with is tabular-like data. There is a great tutorial [3], that can help you get your bearings with Visidata. Once you understand those basics you might want to look at this thread [4] for what commands you can use with json.
[1] Ultimate Plumber: https://github.com/akavel/up
- Up: Plumber is a tool for writing Linux pipes with instant live preview
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Show HN: LineSelect, shell utility to interactively select lines in a pipeline
Ultimate plumber can do this.
https://github.com/akavel/up
- Ultimate Plumber – a tool for writing Linux pipes with live preview
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`jqp`, a TUI playground for `jq`
Been using up for years but this looks nice too
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An interactive wrapper around `jq`
Fun. But I can achieve the same result (I think) with ultimate plumber and regular jq, but without being restricted just to jq. Feel free to correct me.
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What are some useful cli tools that arent popular?
Up - The Ultimate Plumber makes the best pipes !
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A list of new(ish) command line tools – Julia Evans
As an alternative allowing the use of any shell command/pipeline on the results interactively, see also: https://github.com/akavel/up
- RegExr: Learn, Build and Test Regex
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Is there any command-line application that you wish existed but doesn't (or isn't as good as you wished)?
Would https://github.com/akavel/up solve your problem?
What are some alternatives?
parca-agent - eBPF based always-on profiler auto-discovering targets in Kubernetes and systemd, zero code changes or restarts needed!
nvim-jqx - Populate the quickfix with json entries
fsmon - monitor filesystem on iOS / OS X / Android / FirefoxOS / Linux
zsh-history-substring-search - 🐠 ZSH port of Fish history search (up arrow)
libbpf - Automated upstream mirror for libbpf stand-alone build.
dive - A tool for exploring each layer in a docker image
bpfcov - Source-code based coverage for eBPF programs actually running in the Linux kernel
fzf-tab - Replace zsh's default completion selection menu with fzf!
glow - Render markdown on the CLI, with pizzazz! 💅🏻
fx - Terminal JSON viewer & processor
lnav - Log file navigator
hurl - Hurl, run and test HTTP requests with plain text.