Category Archives: linux

ZRAM Boosts Raspberry Pi Performance

Linux is a two-edged sword. On the one hand, there’s so much you can configure. On the other hand, there’s so much you can configure. It is sometimes hard to know just what you should do to get the best performance, especially on a small platform like the Raspberry Pi. …read more

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Posted in linux, linux hacks, Raspberry Pi, swap file, virtual memory, zram | Leave a comment

New Breakout Board for Grid-EYE Thermal Sensor

Panasonic’s Grid-EYE sensor is essentially a low-cost 8×8 thermal imager with a 60 degree field of view, and a nice breakout board makes it much easier to integrate into projects. [Pure Engineering] has created an updated version of their handy breakout board for the Grid-EYE and are currently accepting orders. …read more

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Posted in AMG8833, CH341A, GRID-EYE, grideye2, groupgets, linux, linux hacks, Microcontrollers, Pure Engineering, PureModules, Thermal, usb | Leave a comment

Linux Command Line Productivity with tmux

It is no secret that most Linux power users use the shell for many tasks, as for people who know what they are doing, it can be quite efficient. In addition, there are some tasks that can only be carried out from the command line, although their number shrinks every …read more

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Posted in command line, linux, linux hacks, terminal, tmux | Leave a comment

Beam Your Program to Another Computer

If you’ve programmed much in Linux or Unix, you’ve probably run into the fork system call. A call to fork causes your existing process — everything about it — to suddenly split into two complete copies. But they run on the same CPU. [Tristan Hume] had an idea. He wanted …read more

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Posted in cluster, fork, linux, software hacks | Leave a comment

Debugging for Sed — No Kidding

If you do much Linux shell scripting, you’ve probably encountered sed — the stream editor — in an example. Maybe you’ve even used it yourself. If all you want to do is substitute text, it is easy and efficient. But if you try to do really elaborate editing, it is …read more

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Posted in debugger, debugging, linux, linux hacks, rust, sed, shell scripting | Leave a comment

Program Guesses Your Regular Expression

We aren’t sure how we feel about [pemistahl’s] grex program. On the one hand, we applaud a program that can take some input samples and produce a regular expression. On the other hand, it might be just as hard to gather example data that produces the correct regular expression. Still, …read more

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Posted in linux, regular expressions, rust, software hacks | Leave a comment

Software-Defined Radio Made Easy

Just a few decades ago, getting into hobby radio meant lots of specialty hardware, and making changes to your setup to work on various frequencies wasn’t particularly easy. Since software-defined radio (SDR) came onto the scene in an accessible way for most of us, this barrier to entry was reduced …read more

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Posted in custom, debian, dragonos, linux, radio, radio hacks, sdr, software, software-defined radio | Leave a comment

A(nother) Minimalist Window Manager

For however many Linux distributions there are to choose from, there are perhaps even more window managers that can be paired with them, and some have dramatically different features than the X window systems that most of us are familiar with. There’s a rabbit hole to fall down, as with …read more

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Posted in catwm, dwm, linux, pet project, sara, software, software hacks, window manager | Leave a comment

Hackaday Links: February 23, 2020

If you think your data rates suck, take pity on New Horizons. The space probe, which gave us lovely pictures of the hapless one-time planet Pluto after its 2015 flyby, continued to plunge and explore other, smaller objects in the Kuiper belt. In January of 2019, New Horizons zipped …read more

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Posted in amateur radio, Arrokoth, beacon, big data, Davos, defenestration, dna, Elite, flyby, genetics, Hackaday Columns, Hackaday links, linux, Meme, New Horizons, oligarchy, Pluto, repeater, SETI, SSTV | Leave a comment

Linux Fu: The Linux Shuffle

Computers are known to be precise and — usually — repeatable. That’s why it is so hard to get something that seems random out of them. Yet random things are great for games, encryption, and multimedia. Who wants the same order of a playlist or slide show every time?

It …read more

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Posted in Hackaday Columns, linux, linux hacks, prng, random, random number, random numbers, shuf, shuffle | Leave a comment