< Day Day Up > |
A regular expression defines a set of one or more strings of characters. A regular expression is said to match any string it defines. In a regular expression, a special character is one that does not represent itself. Table A-9 lists special characters.
Table A-10 lists ways of representing character classes and bracketed regular expressions.
In addition to the preceding special characters and strings (excluding quoted parentheses, except in vim), the characters given in Table A-11 are special within full, or extended, regular expressions.
Table A-12 lists characters that are special within a replacement string in sed and vim.
|
< Day Day Up > |