Category Archives: How-To

Encrypting text at the command line with GnuPG

Storing GnuPG content of any kind (that is, plain text to be encrypted, encrypted text to be decrypted, even public keys from co-respondents) on disk can result in the same kind of vulnerabilities associated with storing any sensitive data on … Continue reading

Posted in Command Line, GNU Privacy Guard, How-To, Open source applications, Open source software, Practical Cryptography, Secure computing, Security/Cryptography | Comments Off on Encrypting text at the command line with GnuPG

Managing shell command history in OS X/Linux

One of the many benefits of using the command line shell in OS X or Linux (or any *nix or similar OS) is that the operating system keeps a history of all the commands you use, storing them in a … Continue reading

Posted in Command Line, computer science, Editors, How-To, Linux Tech Talk, Open source software, Programmer's Tools, Secure computing, Security/Cryptography, Ubuntu Linux, Utilities | 1 Comment

Using diff

diff is a *nix command that takes two files and compares them, reporting on the differences between them. For example: $ diff foo.bar foo.bar $ When the files are identical, no output is generated (as in this case, comparing a … Continue reading

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Low-tech Magazine

Watch the movie War Games sometime if you have any interest in seeing how things were done back before computers were everywhere. It’s a real time-capsule from 1983, full of modems and rotary telephones and libraries with card catalogs and … Continue reading

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Linux Command Line Gold

There’s nothing like a command line for when you need to get things done. Here are some resources (maybe repeats from years past?) that can give you an edge when you’re looking for a fast and efficient way to do … Continue reading

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Choosing an open source text editor

For many programmers, their first “real” program was some kind of a text editor. For some, it was an exercise in a programming class, or else an exercise in creating their first real, personalized, tool that worked the way the … Continue reading

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My Free Logo Adventure

It’s more than just turtles these days with heavy-duty Logo. Continue reading

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Good advice about backups

There are many approaches to doing backups. Unfortunately, most of them are some variation of "it’s too much trouble". But even if you are doing backups, this article reminds us that Your backup is only as good as your last … Continue reading

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Command line-fu from Foogazi

You only really get better at the command line by using the command line, so it might seem counter-intuitive to write about 10 Linux Commands You Probably Don’t Use. If you don’t use the command line, there’s a lot more … Continue reading

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More Linux Tips from IBM

There are good reasons so many Linux wizards like, no, LOVE the command line. If you know what you’re doing, it can be way faster and easier to use than fiddling around with mouse pointers and windows and so on. … Continue reading

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