(emacs)Replace


Replacement Commands
====================

   Global search-and-replace operations are not needed often in Emacs,
but they are available.  In addition to the simple `M-x replace-string'
command which is like that found in most editors, there is a `M-x
query-replace' command which finds each occurrence of the pattern and
asks you whether to replace it.

   The replace commands normally operate on the text from point to the
end of the buffer; however, in Transient Mark mode, when the mark is
active, they operate on the region.  The replace commands all replace
one string (or regexp) with one replacement string.  It is possible to
perform several replacements in parallel using the command
`expand-region-abbrevs' (Note: Expanding Abbrevs).

Unconditional Replace: Replacing all matches for a string.
Regexp Replace: Replacing all matches for a regexp.
Replacement and Case: How replacements preserve case of letters.
Query Replace: How to use querying.

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