ex

Command-line text editor.

See also: `vim`.

• Open a file:

ex {path/to/file}

• Save and Quit:

wq

• Undo the last operation:

undo

• Search for a pattern in the file:

/{search_pattern}

• Perform a regular expression substitution in the whole file:

%s/{regular_expression}/{replacement}/g

• Insert text:

i{text}

• Switch to Vim:

visual

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