GNU sort is normally crazy fast at what it does. However, recently I was trying to sort & unique several huge files and it seemed to be taking way too long. I did a little googling, and realized that it takes a lot longer to sort the full range of Unicode characters because it has
Tag: command line
proprietary insecurity I’ve accumulated many notes (2000+) in Evernote over the years, and love that it can store binary attachments such as images or other media files. My favorite feature is the Evernote Web Clipper browser extension; it does a fantastic job at saving the parts of an article I want to save while keeping
Intro: The Tyranny of Prefork There are a lot of tutorials out there that go through the rote instructions on upgrading your Debian or Ubuntu system to use PHP 7. While I’m sure most of them are fine, they assume you’d want to use the prefork process model or event/threaded via CGI (via proxy and
My new favorite tool is a python program called distribution that can easily show histograms in your terminal: [crayon-5eab10d4a3fde904478171/] I used homebrew to install it, but you can see some usage examples and a few other tools on this stackoverflow page. I eagerly anticipate showing off some histograms to people.
Note: I’m running my Raspberry Pi as a server, and NetworkManager is not installed. I discovered that if you want to manually assign search and nameserver entries in your /etc/resolv.conf file, you can’t just add the relevant entries to static entry in /etc/network/interfaces: [crayon-5eab10d4a402f644383462/] For some unknown reason, the resolvconf utility will still attempt to
Just saw this on One Thing Well, and it made me so nostalgic about my early years on *nix and the net. A weather service fed over the finger protocol. [crayon-5eab10d4a4081605382153/]
You notice something is wrong with your system. I’ll just put this error message here for the sake of the Googles: [crayon-5eab10d4a40c2235717256/] That stinks.
I find that using an idiom like [crayon-5eab10d4a412a878713909/] is so useful. It replaces the replstr (“%” in this example) with all the arguments at once, or as many as can fit without going over the system’s limit. I couldn’t believe it when I learned that the GNU version of xargs lacks this flag. Yes, it’s
I would really like to rid myself of Dropbox, but all the alternatives I’ve tried are too bloated, beta- or alpha-quality stage, too complicated to set up, or just plain don’t do what Dropbox does (minus the sharing stuff, which I don’t care about). I don’t want btsync, it’s closed-source. Seafile is too complicated, and
Just a quick one-liner for posterity. [crayon-5eab10d4a4225021090817/]
I was experiencing a pretty bad slowdown while trying to use the admin pages of a WordPress site recently. The load on the machine was quite low, so I began to suspect that it was trying to call out to external services (facebook, pinterest, etc) that might have been blocked by CSF (configserver firewall). I
I recently skimmed a paper showing the success of attacking the security of various password database file formats. The only one which withstood both the passive and active attacks was the Password Safe format.
If you have some need to OCR some text from a PDF or image file, you may want to use a tool like tesseract to do the job. But it won’t take any old input file, you’ll probably need to convert it first. The first error I got from tesseract was [crayon-5eab10d4a42bc933230601/] The Googles indicated
UPDATE: Major derp moment on my part, thinking that you needed a loop in AWK to print all but one fields. Commandlinefu just cause a forehead-slapping moment when I saw this in my feed: [crayon-5eab10d4a434f125314789/] So, it seems AWK wins again. Carry on. If you’re trying to print one or more particular columns from some
Yes, the Raspberry Pi can do fast video encoding. Of course you normally wouldn’t want to re-encode any video with an ARM processor, but that’s not what we’re going to do here. We’re going to leverage the GPU. I should point out before proceeding that the input formats for re-encoding are limited in this method,