# strrep

## Purpose

String search and replace.

## Synopsis

    str = strrep('str1','old_str','new_str')

## Description

`str = strrep('str1','old_str','new_str')` replaces all occurrences of a substring with another string, where

- `str1` is the string in which to search and replace.
- `old_str` is the substring to replace within `str1`.
- `new_str` is the string that replaces `old_str`.
  The function returns the modified string `str`.

  ## Examples

      s1 = 'This is a good example.';
      str = strrep(s1,'good','great')

      str =
      This is a great example.

  ## See Also

      findstr

  (c) Copyright 1994 by The MathWorks, Inc.