Tasty » Adam Sampson's unix bookmarks

research!rsc: Running the “Reflections on Trusting Trust” Compiler edit / delete

With analysis of the surprisingly short source code.

to backdoor bell-labs compiler history retrocomputing security unix ... on 26 October 2023

terrycojones/daudin: A Python command-line shell edit / delete

"daudin is a UNIX command-line shell based on Python." It's a bit brute-force (if something parses as Python, it gets evaluated as an expression, else it's passed to the shell) but looks like it should work pretty well.

to python shell unix ... on 29 June 2020

gitstatus/listdir.md at master · romkatv/gitstatus edit / delete

Speeding up directory listing. This will, however, have horrible performance on NFS... so it's not really true that there's nothing much left to optimise!

to optimisation unix ... on 29 June 2020

The Early History of the "more" Command edit / delete

to history its retrocomputing unix ... on 11 June 2018

MCS 494, UNIX Security Holes, Fall 2004 edit / delete

Dan Bernstein's Unix security module. This is a bit dated now, but the material is interesting, and the assessment materials have some nice ideas.

to security teaching unix ... on 10 November 2017

es edit / delete

"Es is an extensible shell. The language was derived from the Plan 9 shell, rc, and was influenced by functional programming languages, such as Scheme, and the Tcl embeddable programming language." Meets some of the design criteria I'm interested in, although overall I don't find the design that compelling.

to es language-design shell unix ... on 06 April 2017

dgsh — directed graph shell edit / delete

DDS's shell allowing the construction of arbitrary graphs of pipes. I like the examples, which range from "Directory listing" to "Nuclear magnetic resonance processing".

to pipeline shell software unix ... on 26 February 2017

Operating Systems edit / delete

"This directory contains some scripts of the lecture Operating Systems at the Berufsakademie Stuttgart." (Or, as we'd say, some lectures for the module &c.) Interesting in that it uses Unix v6 and the Lions book.

to operating-systems retrocomputing teaching unix ... on 24 December 2016

ripgrep is faster than {grep, ag, git grep, ucg, pt, sift} - Andrew Gallant's Blog edit / delete

The tool isn't hugely compelling, but the collection of benchmarks for a regexp search engine is interesting.

to benchmarking grep performance search text unix ... on 06 December 2016

Capsicum Implementation Status edit / delete

I keep thinking "wouldn't it be nice if someone did capability-based security in Unix userspace" and then forgetting that this project already exists...

to capability capsicum security unix ... on 14 October 2016