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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.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
 
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.
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.
Backslash       Following character is treated literally.
                                    -♦-