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...After a short learning phase, z will take you to the most 'frecent directory that matches ALL of the regexes given on the command line, in order. For example, z foo bar would match /foo/bar but not /bar/foo. The rank of directories maintained by z undergoes aging based on a simple formula. The rank of each entry is incremented every time it is accessed. When the sum of ranks is over 9000, all ranks are multiplied by 0.99. Entries with a rank lower than 1 are forgotten. Frecency is a portmanteau of 'recent' and 'frequency'. ...

...wildcards to allow inserting matched strings like Windows 'copy *.old =.new' Some examples: # Rename current files as old doall 'mv *.cur *.old' # Compress camcorder DV files doall 'ffmpeg -i *.dv *.mp4' # Move files into directories according to their extension doall 'mv *.* $2/$1.$2' # Symbolic links from vmlinuz.new to vmlinuz-5.12.6-foo, similarly config.new System.map.new doall 'ln -s /boot/*-5.12.6-* /boot/$1.new' # Hard link 3-character abbreviations for file extensions doall 'ln *.???* $1.$2' As shown above, instead of '=' to indicate insertions, doall uses either * or $1 etc. doall -p (pretend mode) shows a list of commands instead of executing them doall -i (interactive mode) asks for confirmation for each command in turn doall -k (keep-running mode) ignores failing commands

A system for tracking the steps to compile and install software. Inspired by the "Linux From Scratch" book. Addresses issues: "What steps did I use to compile 'foo'?, what files did it install? I need to recompile but don't like typing all commands over.