Regular expressions

Regular expressions are very useful and geeky. I am not an expert with regexp. Here I’m slowly going to collect a list of regular expressions, tools and examples that I use myself from time to time. I’m hoping to learn more in the process.

regexp does example does
^foo match beginning ls -la|grep ^d a list of directories
foo$ match end find .|grep \.gif$ list al files ending in .gif

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