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History
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=======
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Sets [history][1] options and defines history aliases.
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VARIABLES
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---------
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- `HISTFILE` the file to save the history in when an interactive shell exits.
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- `HISTSIZE` the maximum size of the history list.
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- `SAVEHIST` the maximum number of history events to save in the history file.
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Options
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-------
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- `BANG_HIST` treat the **!** character specially during expansion.
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- `EXTENDED_HISTORY` write the history file in the *:start:elapsed;command* format.
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- `INC_APPEND_HISTORY` write to the history file immediately, not when the shell exits.
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- `SHARE_HISTORY` share history between all sessions.
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- `HIST_EXPIRE_DUPS_FIRST` expire duplicate entries first when trimming history.
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- `HIST_IGNORE_DUPS` do not record an entry that was just recorded again.
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- `HIST_IGNORE_ALL_DUPS` delete old recorded entry if new entry is a duplicate.
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- `HIST_FIND_NO_DUPS` do not display a line previously found.
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- `HIST_IGNORE_SPACE` do not record an entry starting with a space.
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- `HIST_SAVE_NO_DUPS` do not write duplicate entries in the history file.
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- `HIST_REDUCE_BLANKS` remove superfluous blanks before recording entry.
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- `HIST_VERIFY` do not execute immediately upon history expansion.
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- `HIST_BEEP` beep when accessing non-existent history.
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Aliases
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-------
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- `history-stat` list the ten most used commands
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Authors
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-------
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*The authors of this module should be contacted via the [issue tracker][2].*
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- [Robby Russell](https://github.com/robbyrussell)
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- [Sorin Ionescu](https://github.com/sorin-ionescu)
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[1]: http://zsh.sourceforge.net/Guide/zshguide02.html#l16
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[2]: https://github.com/sorin-ionescu/oh-my-zsh/issues
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