Grep by example: Interactive guide

grep is the ultimate text search tool available on virtually all Linux machines. While there are now better alternatives (such as ripgrep), you will still often find yourself on a server where grep is the only search tool available. So it's nice to have a working knowledge of it. That's why is I've created this interactive step-by-step guide to grep operations. You can read it from start to finish

[bopperjp]

うーん。。GNU grep か。。mac だと色々ない。