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What does 'rc' mean in dotfile

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Sometime I wondered what the rc suffix on dotfiles, like .vimrc, .zshrc, .bashrc, … I guessed it stands for resource configuration or runtime configuration. =))

Today I learned that:

The ‘rc’ suffix goes back to Unix’s grandparent, CTSS. It had a command-script feature called “runcom”. Early Unixes used ‘rc’ for the name of the operating system’s boot script, as a tribute to CTSS runcom.

So rc stands for “run commands”

References

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