Semi-random amusing code snippet of the day:
aws ec2 describe-instances | jq << EOF
.[][].Instances[]
| select(.Tags[]?.Value == "production")
| .PrivateIpAddress
EOF
JP's Blog
gif shrinkage with ImageMagick
ts: Timestamping stdout
Loving data as much as I do, I like to optimize things. To make sure I’m actually going the right way, it’s useful to time things. While it’s trivial in most languages to add timing, it’s even easier if you don’t have to.
update-dotfiles encryption
I do like having my dotfiles on GitHub. For one, it means that they’re always available when I set up a new machine. For two, others can see them and take whatever is interesting for their own dotfiles. But all that has a disadvantage: what if I want to store my SSH configs?
docker-bash and docker-stop-all
I’ve been using Docker a fair bit at work, so I’ve added a few quick aliases to my dotfiles make that a little bit easier:
docker-bash- attach abashshell to the first available docker instancedocker-stop-all- stop all running docker instances
Removing large files from git history
A couple of quick additions to my dotfiles today:
git find-fat- find large files that no longer existgit trim-fat- remove files entirely from git history
Updating dotfiles
After all of these updates to my dotfiles, I finally want something that I can use to keep them up to date. For that, let’s write a quick script that can do just that.
slowcat
Sometimes cat just prints too quickly.
Regex search and replace
Another random task that I find myself doing distressingly often: performing a regular expression search and replace recursively across a bunch of files. You can do this relatively directly with tools like sed, but I can never quite remember the particularly flavor of regular expression syntax sed uses.
Git aliases: undo, ud, and wipe
A few new git aliases:
git undo- Undo the most recent commit, unstaging all new filesgit up- Update remote branches and submodules, delete merged branchesgit wipe- Remove all current changes, saving as a seperate branch