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Add fzf to get fuzzy search for your history. I reuse long complicated commands all the time by pressing Ctrl+R and then typing the first letters of a few words I remember using.

https://github.com/junegunn/fzf

It's also useful to remove duplicate commands and store infinite history. Add this to ~/.bashrc:

  export HISTFILESIZE=
  export HISTSIZE=
  export HISTCONTROL=ignoredups


Changing HISTFILE by context has been a huge win, keeping commands from generic system administration or different projects from getting in the way as I search back through my history to do a thing again.




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