Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

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  Special Characters in Regular Expressions
 
  Character        Description
  ═══════════════  ════════════════════════════════════════════
  Period       .   Matches any single character.
  Caret        ^   Matches text at the beginning of a line.
  Dollar sign  $   Matches text at the end of a line. The dollar
                   sign must appear at the end of the text.
  Asterisk     *   Matches zero or more repetitions of the
                   character preceding the asterisk.
  Backslash    \   Next character in pattern is matched literally.
  Brackets    [ ]  Matches sets of the characters specified
                   within the brackets.
      Caret    ^   Matches any character EXCEPT those specified within
                   the brackets. It must be the first character within
                   the brackets.
      Dash     -   Matches characters in the ASCII order between the
                   characters on either side, inclusive.