I've written a few free ebooks on CLI tools: * "GNU grep and ripgrep" (https://learnbyexample.github.io/learn_gnugrep_ripgrep/ https://learnbyexample.github.io

I've written a few free ebooks on CLI tools: * "GNU grep and ripgrep" (https://learnbyexample.github.io/learn_gnugrep_ripgrep/ https://learnbyexample.github.io/learn_gnugrep_ripgrep/) * "GNU sed" (https://learnbyexample.github.io/learn_gnused/ https://learnbyexample.github.io/learn_gnused/) * "GNU awk" (https://learnbyexample.github.io/learn_gnuawk/ https://learnbyexample.github.io/learn_gnuawk/) * "Perl one-liners cookbook" (https://learnbyexample.github.io/learn_perl_oneliners/ https://learnbyexample.github.io/learn_perl_oneliners/) * "Command line text processing with GNU Coreutils" (https://learnbyexample.github.io/cli_text_processing_coreutils/ https://learnbyexample.github.io/cli_text_processing_coreuti...) * "Computing from the Command Line" (https://learnbyexample.github.io/cli-computing/ https://learnbyexample.github.io/cli-computing/)