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Treat underscores as word boundaries in terminal using vim mode

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How do you specify underscores as Vim word boundaries when using vim mode in either bash or zsh?

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w on this_word should place the cursor on the underscore. A second w should place the cursor on the 'w' of "word".

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In order to specify underscores as Vim word boundaries when using vim mode in either bash or zsh, you can set the iskeyword option in your .vimrc file. This option takes a list of characters that Vim should consider as word boundaries. To add underscores to this list, add the character _ to the list. For example, to set underscores as word boundaries, you can add the following line to your .vimrc file:

set iskeyword+=_

Once this option is set, pressing the w key while the cursor is on the underscore in the example you provided will move the cursor to the w of "word".

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