lsofer
KeenWrite
lsofer | KeenWrite | |
---|---|---|
2 | 98 | |
10 | 621 | |
- | - | |
10.0 | 0.0 | |
over 6 years ago | 8 months ago | |
Shell | Java | |
- | GNU General Public License v3.0 or later |
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lsofer
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Not knowing the /proc file system
/proc is amazing once you get the hang of it and get a good understanding of what's all in there. Especially if you're doing low level performance tuning.
It's particularly helpful in larger infrastructures where tool the variability means differences in available tooling, and their output plus cli options. I'm sure /proc iteration has its own issues of variability across large infrastructres, but I haven't seen it. It's a fairly consistent API. Or at least it was, since I haven't touched a large infrastructure in some time.
When I got tired of `lsof` not being installed on hosts (or when its `-i` param isn't available) I ended up writing a script [1] that just iterates through /proc over ssh and grabs all inet sockets, environment variables, command line, etc from a set of hosts. Results in a null-delimited output that can then be fed into something like grafana to create network maps. Biggest problem with it is the use of pipes means all cores go to 100% for the few seconds it takes to run.
[1] https://github.com/red-bin/lsofer
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Bash functions are better than I thought
Oh yeah, bash functions are great and absolutely abusable. Sometimes you need some grand hacks to get it to work well, but when it works well, it can do some magic. You can even export functions over ssh!
I wrote this a few years back which ran on bunches of hosts and fed into a infrastructure network mapper based on each hosts' open network sockets to other known hosts. It wasn't really feasible to install a set of tools on random hosts.. but I still had root ssh access across the board. So I needed something tool agnostic, short, auditable, and effectively guaranteed to work:
https://github.com/red-bin/lsofer/blob/master/lsofer.sh
KeenWrite
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Ask HN: Tell us about your project that's not done yet but you want feedback on
KeenWrite is my free, open-source, cross-platform desktop Markdown editor that can produce beautifully typeset PDFs. I started working on it years ago to help write a novel that has a complex timeline and I couldn't find a text editor that would allow me to integrate a character sheet with the story itself.
https://github.com/DaveJarvis/keenwrite
Tutorials:
* https://www.youtube.com/playlist?list=PLB-WIt1cZYLm1MMx2FBG9...
Here's what I mean by using variables directly:
* https://www.youtube.com/watch?v=CFCqe3A5dFg
CommonMark doesn't propose a standard for bibliographic references. Would anyone find the editor more appealing if it had cross-references and citations?
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Documentation as Code for Cloud Using PlantUML
My cross-platform desktop text editor, KeenWrite, allows users to define variables in an external YAML file. The editor calls out to Kroki[1] to convert text-based diagrams to SVG. The diagrams can reference variables and are rendered using EchoSVG[2].
KeenWrite[3] can produce PDF documentation from Markdown documents that has PlantUML diagrams with elements stored in an external, machine-readable file. Here are screenshots showing variables on the left, diagram text in the middle, and a real-time render on the right:
* https://raw.githubusercontent.com/DaveJarvis/KeenWrite/main/...
* https://raw.githubusercontent.com/DaveJarvis/KeenWrite/main/...
KeenWrite supports all diagrams offered by Kroki, which includes "diagram-plantuml".
[1]: https://kroki.io/
[2]: https://github.com/css4j/echosvg/
[3]: https://github.com/DaveJarvis/keenwrite
- On why Markdown is not a good, or even a half-decent, markup language
- MdBook – Create book from Markdown files. Like Gitbook but implemented in Rust
- KeenWrite 3.3.2: MermaidJS diagrams (with caveat)
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Interactive CommonMark Tutorial
Although not interactive, I've created a video series that shows advanced usage of Markdown. Namely R, external variables, diagrams, math, annotations, and a different approach to metadata:
* https://www.youtube.com/playlist?list=PLB-WIt1cZYLm1MMx2FBG9...
Tutorial 4 shows basic Markdown:
* https://www.youtube.com/watch?v=qNbGSiRzx-0
The top-right of each video shows keyboard and mouse clicks to help follow along.[1] My desktop text editor, KeenWrite[2], is used in the tutorials.
[1]: https://github.com/DaveJarvis/kmcaster
[2]: https://github.com/DaveJarvis/keenwrite
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“Exit Traps” Can Make Your Bash Scripts Way More Robust and Reliable
https://github.com/DaveJarvis/keenwrite/blob/main/scripts/bu...
My template script provides a way to make user-friendly shell scripts. In a script that uses the template, you define the dependencies and their sources:
DEPENDENCIES=(
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EchoSVG: SVG rasterizer library supporting level 4 selectors (Apache 2)
I didn't create the fork, nor am I affiliated with the project. I use it in my text editor, KeenWrite to rasterize SVG.
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Millions of dollars in time wasted making papers fit journal guidelines
KeenWrite Themes[1] are instructions that tell ConTeXt how to typeset XHTML documents (content) into PDF files (presentation). I made a tutorial that shows how my FOSS desktop text editor, KeenWrite[3], allows users to write in Markdown to typeset a document against a particular theme.
Before it can be used for scientific papers, it needs cross-references, which, unfortunately, aren't part of the CommonMark specification.
I posit that the vast majority of LaTeX users don't grok how to separate content from presentation. When I asked a question on TeX.SE about how to adjust the line spacing between enumerated items (spanning a couple dozen enumerated lists), the vast majority of people voted for the answer of using `\itemsep0em` to tweak each list ... individually.[4] The correct answer, IMO, is to fix the problem globally, and not waste time tweaking individual lists.
[1]: https://github.com/DaveJarvis/keenwrite-themes
[2]: https://www.youtube.com/watch?v=3QpX70O5S30
[3]: https://github.com/DaveJarvis/keenwrite
[4]: https://tex.stackexchange.com/questions/6081/reduce-space-be...
What are some alternatives?
hasura-ci-cd-action
markdown-preview.nvim - markdown preview plugin for (neo)vim
bash-core - Core functions for any Bash program.
marktext - 📝A simple and elegant markdown editor, available for Linux, macOS and Windows.
basalt - The rock-solid Bash package manager.
typst - A new markup-based typesetting system that is powerful and easy to learn.
PPSS - Parallel Processing Shell Script
vim-markdown - Markdown Vim Mode
nsd - NGS Scripts Dumpster
Zettlr - Your One-Stop Publication Workbench
ngs - Next Generation Shell (NGS)
kroki - Creates diagrams from textual descriptions!