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