Shell Tutorials

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    Repeat Bash Prompts

    I'm sure you wont be surprised when I tell you it's my job to automate things in our my household.  My wife is tech savvy but she relies on me to make tech matters easy for everyone; I guess it's flattering that she trusts me to do...

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    Create gists from Command Line

    One of the best ways to gain contributors for your open source project is by providing a rough patch for the contributor to start from.  One of the best ways to ask for help is by providing what you have so far and letting a mentor...

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    Search Git Commits Between Dates

    One of my weaknesses as a developer is relying on UIs to provide me the data I need.  It's not a fatal weakness but it does hamper me a bit.  One prime example is relying on GitHub's interface to review changes; git's command line provides the...

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    How to Hide Information in Images

    If you've followed this blog, you know that I'm obsessed with figuring out every way to interact with, abuse, and convert different types of media.  Whether it's images, video, or audio, if something can be changed or exploited, I want to figure out how to do...

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    Count Frames in an Animated GIF

    The animated GIF always makes me chuckle; on one hand they seem like a relic of the "old web", on the other hand they aren't going anywhere and their meme-like presence seem to only make them more popular.  If you browse through my media blog...

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    How to Delete Untracked Files in a Mercurial Repository

    Working around Firefox at Mozilla means that you need to get acquainted with mercurial, the version control system that rivals git and svn.  Like any tool, hg (mercurial) can be difficult until you're well versed with it.  And if you hg import a URL that doesn't match...

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    Regain Disk Space from Homebrew

    One of my favorite utilities is Homebrew, the shell utility for installing and upgrading other utilities -- it's a lazy developer's dream.  Dreams can easily turn to nightmares, however, and I recently learned that Homebrew caches older versions of installed packages, leading to loads of...

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    Reset File Changes with git

    There are many different philosophies when it comes to code review but mine is fairly simple:  I like receiving early "work in progress" patches, I like to be positive in my code review messages, and if a patch is 90% there, I like to finish the...

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    Set a Default Push Remote with git

    During my early days of git usage, my config allowed me to simply type git push instead of git push {origin} {branch_name} which I need to now.  Up until recently I needed to type out the long version...(I know)...which was incredibly annoying because I like using detailed branch...

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    Find Empty Files and Directories from Command Line

    If you are anything like me, you like to keep your projects as tight as possible.  By "tight" I mean no lingering, useless files or directories, because bloat is an incredible annoyance and distraction.  And we don't want distractions, do we? There's a really easy way to...