gpg: public key of ultimately trusted key 00000000 not found
When I run into a problem I can’t and the Google doesn’t have it, I document it for the next person.
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Renaming Files
A quickie today, renaming a bunch of files in the shell. Unix gives you million ways to do it, here are a few that will help you understand your tools better.
The Map Gem
There’s one Ruby gem that make it into practically every Ruby project I write, my friend Ara’s Map. Really, it’s a coincidence that I know Ara, this gem speeds up development and I would be using it anyway. At it’s core, Map is a fancy h...
Managing SSH Keys
To securely access your servers you use SSH keys. Passwords can be guessed, just look in your logs to see all the people trying. But, you know that. You’ve got one key to rule them all added to .ssh/authorized_keys on the servers you man...
Legacy Deploy with Capistrano
So, you’re on a rescue project with some legacy code (and by “legacy” I almost always mean PHP). The old developer probably just FTP’ed changes up to the server. You could do the same, but frankly that fills me with dread. On a good day ...
Patching between Git repos
While the fame and free cars are nice, the reason I blog is to learn, or, as in this case, to help me remember things.
iTerm Tear Off Tabs
I like iTerm 2 (and I can not lie). I use a Mac and spend most of my days in the terminal (and Emacs). When a window system first came into my life, it was X Windows. It’s terminal software, xterm, had a pair of features that are hardwir...
Backups With Rsync and launchd
Previously, I wrote about backing up files to Dropbox with rsync. I automated the process with cron the ancient UNIX “time-based job scheduler”. While OS X ships with cron, newer versions of the operating system favor launchd. launchd is...
Debuging RAMPS Stepper Problems
This is a bit of a departure from my usual Ruby, Ops, and Security posts. However, recently I acquired a mostly completed RepRep 3D printer and wanted to document an issue I had to debug. One of the reasons I blog is to share the answers...
Quick and Dirty Backups with rsync
One simple way to back up files is to copy them to Dropbox. However, manually copying files does not constitute a good backup, you’re going to forget.