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z is the new j, yo
This project forked from rupa/z
z is the new j, yo
Z(1) User Commands Z(1) NAME z - jump around SYNOPSIS z [-h] [-l] [-r] [-t] [regex1 regex2 ... regexn] AVAILABILITY bash, zsh DESCRIPTION Tracks your most used directories, based on 'frecency'. After a short learning phase, z will take you to the most 'frecent' direc‐ tory that matches ALL of the regexes given on the command line. OPTIONS -h show a brief help message -l list only -r match by rank only -t match by recent access only EXAMPLES z foo cd to most frecent dir matching foo z foo bar cd to most frecent dir matching foo and bar z -r foo cd to highest ranked dir matching foo z -t foo cd to most recently accessed dir matching foo z -l foo list all dirs matching foo (by frecency) NOTES Installation: Optionally: Set $_Z_CMD in .bashrc/.zshrc to change the command (default z). Set $_Z_DATA to change the datafile (default $HOME/.z). Put something like this in your $HOME/.bashrc: . /path/to/z.sh Put something like this in your $HOME/.zshrc: . /path/to/z.sh function precmd () { _z --add "$(pwd -P)" } cd around for a while to build up the db. PROFIT!! Optionally: Install the provided man page z.1 somewhere like /usr/local/man/man1. Aging: 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 greater than 1000, all ranks are multiplied by 0.9. Entries with a rank lower than 1 are forgotten. Frecency: Frecency is a portmantaeu of 'recent' and 'frequency'. It is a weighted rank that depends on how often and how recently something occured. As far as I know, Mozilla came up with the term. To z, a directory that has low ranking but has been accessed recently will quickly have higher rank than a directory accessed frequently a long time ago. Frecency is determined at runtime. Common: When multiple directories match all queries, and they all have a common prefix, z will cd to the shortest matching directory, without regard to priority. This has been in effect, if undocumented, for quite some time, but should probably be configurable or reconsidered. Tab Completion z supports tab completion. After any number of arguments, press TAB to complete on directories that match each argument. Due to limitations of the completion implementations, only the last argument will be completed in the shell. Internally, z decides you've requested a completion if the last argument passed is an absolute path to an existing directory. This may cause unex‐ pected behavior if the last argument to z begins with /. ENVIRONMENT A function _z() is defined. An alias $_Z_CMD='_z 2>&1' is defined. If not set, $_Z_CMD defaults to z. In bash, z uses the PROMPT_COMMAND environment variable to maintain its database. Specifically it prepends: _z --add "$(pwd -P 2>/dev/null)" 2>/dev/null; to any existing PROMPT_COMMAND. zsh users need to manually set precmd() as described in the installation instructions. FILES Data is stored in $_Z_DATA. If not set, $_Z_DATA defaults to $HOME/.z A man page (z.1) is provided. SEE ALSO regex(7), cdargs, pushd, popd, autojump, cdargs Please file bugs at https://github.com/rupa/z/ z February 2011 Z(1)
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