Simon Willison’s Weblog


8 items tagged “bash”


A tiny CI system (via) Christian Ştefănescu shares a recipe for building a tiny self-hosted CI system using Git and Redis. A post-receive hook runs when a commit is pushed to the repo and uses redis-cli to push jobs to a list. Then a separate bash script runs a loop with a blocking “redis-cli blpop jobs” operation which waits for new jobs and then executes the CI job as a shell script. # 26th April 2022, 3:39 pm


flk: A LISP that runs wherever Bash is (via) This is a heck of a project: an implementation of LISP written entirely in Bash, meaning you can run it as a script on any machine that has a Bash installation. # 4th December 2019, 5:19 am


direnv (via) A shell extension (for bash, zsh and others) which can automatically set and unset environment variables when you cd into specific directories. Useful for managing things like a project’s GOPATH or automatically activating Python virtual environments. # 5th November 2017, 7:59 pm


What is a good programming language to learn after bash scripting?

Python is a good natural progression from bash in my opinion. It has an interactive prompt which supports bash-style exploratory programming, and it has libraries that mean it can be applied to an enormous range of problems—everything from game development to scientific computing to web applications.

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Using Bash’s History Effectively. The HISTIGNORE environment variable is particularly useful, allowing you to suppress certain commands by specifying a pattern. This article has a tip for causing a command to be omitted from the history if you prefix it with a space. # 25th February 2010, 12:21 pm


shunit2 (via) xUnit style testing for shell scripts. # 27th September 2009, 7:34 pm

BashReduce. Map/Reduce in Bash is no longer a joke project (if it ever was)—Richard Crowley is extending it and using it for analysis at OpenDNS. # 28th June 2009, 3:03 pm

resty. 58 lines of bash provides a better command-line interface to RESTful APIs, using curl under the hood. This should save me from running “man curl” several times a week. # 18th May 2009, 1:07 pm