I’ve been a bash user for several years (8?) but someone just showed me this trick about a year ago, and now I honestly can’t live without it. Control-R at bash prompt will allow you to quickly search your bash history in reverse order. It’s not a full search, you can only type a few characters, but it’s super handy for finding some oddball thing you did yesterday, or something that you do frequently but haven’t aliased/automated yet.
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