Zsh completion for home grown scripts (part 2)
When last we checked, our intrepid lazy typer was trying to write a completion rule for kibo to reduce his keystrokes a microscopic amount.
The working ‘kibo’ completion script:
Read moreZsh completion for home grown scripts
I use irssi on a cloud server for my IRC needs. Along with it I’ve written some utility scripts - the most useful is kibo to find all messages sent to myself by searching the irssi logs. Since my home dir is a bit longer lived my scripts keep getting little tweaks and improvements. One I’ve been doing lately is completions. I had hoped yesterday to show a more complicated zsh completion example but so far haven’t gotten it to work. Read moreZip Slip
While looking into something else I came across the Zip Slip vulnerability. Kind of annoying since it’s nearly a year old and I’ve only heard of it now. Every now and then I keep thinking a neat tool would be something that would run over a project, track every dependency it has and then alert you when there’s a a security issue. However it seems like one of those things people would want but not pay for. Read moreA month of blogging
I still use a feed reader and I follow a blog by a U. Toronto sysadmin. He posts pretty much every day and goes after some pretty meaty topic or another. I’ve been wondering how hard that is and what’s to be gained by it so this January I decided to give it a go. It’s been interesting. I’ve missed a few days - and this weekend diverted into recipes which are kind of technical but not quite. Read moreSaltines
I’m on a bit of a cracker baking kick. Blame it on GBBO binge watching. The Cheez-Its was my second cracker recipe to, uh, take a crack at. The first was this one, Saltines. Through a number of batches I came up with the following.
Read moreCheez-Its Try #1
My first attempt at Cheez-Its.
Read moregit filter-branch
I’m working on converting two large svn repos to git. Both have large binary files stored in them so I’m using git lfs to make them more manageable. However the repos are large enough that the normal tools don’t work so I’m using the BFG repo cleaner to do the lfs migration. And this, plus the subgit migration tool leave loads of .gitattributes files laying around. They’re easy to remove, but I need . Read moreChromebook as dev machine
On Monday I discovered that an old Chromebook I have can now support “LinuxApps”. These are a VM + containers that one can use to run straight Linux programs. They descibe using GUI apps, but I just want compilers, vim, my shell, git and the regular crew of dev tools. And they’re here. Is it the fastest thing ever? No. As I type this I’m having vague flashbacks to connecting up to a shell account via a 9600 baud modem. Read moreTrying tmux
One of the nice things about unix is that a lot of your learning is additive. Learning one tool usually doesn’t replace another. Learning perl didn’t mean I stopped using awk for example. The time spent into learning the various tools on unix is therefore pretty well spent - you’ll get a lot of use from what you’ve learned. However I can think of two circumstance where that didn’t work out. Read more3blue1brown: The weird way to pi
YouTube sadly has some horrible bits, but there’s a subset of it that has loads of fascinating math videos. Last week there was a great one which showed a bizarre way to calculate pi using a physics thought experiment. He left the actual equations that explained why this happens to a later video. Happilly it came out today. What it boils down to is an interaction between the equations for conservation of energy and the conservation of momentum. Read morePython vs shell
One of the nice parts about shell is that you can quickly prototype things. But eventually they become too brittle or limited or complex and you need to switch to a better langauge. Pipelines are powerful, but real data structures are better. The brevity is nice though. From the ia-save script, these four lines of shell… 1 2 3 4 find posts -name '*.md' -print0 \ | xargs -0 awk '/^\[[^]]*\]: / && $2 ~ /^http/ {print $2}' \ | sed 's/#. Read moreTicket home
A weird side-effect of putting my home dir in vcsh is that I can write tickets for it. So mild annoyances that can’t be fixed right get a ticket. That way if I have time later I’ll have a better sense of the issue. You can set up “a git server” with just an ssh account on a server that has git on it. Nowadays though most people run something like Gitlab or Gogs or one of the hosted services like Gitlab, Github or Bitbucket. Read moreSecrets in git repos
One issue with infrastructure sorts of repositories is what to do with sensitive data. Keys, tokens and other secrets shouldn’t be committed to git repos, but they have to go somewhere. In some cases you can put them in your CI/CD system and import them as variables. But that gets complicated quickly. One way to address it is to use git crypt. It’s not a standard git extension, but it’s been around for a fair bit of time. Read moreConfiguring history
In yesterday’s post the past repo was described.
The first step to getting that to work is to correctly configure
history files in the first place. Some are easy, but some are more
complex.
For zsh and MySQL it’s rather easy. Just put something
like this in your ~/.zshrc: