PowerShell CheatSheet – Regular Expressions
Here is a regular expression list
| . | matches any character except newline |
| \ | escape character |
| \w | word character [a-zA-Z_0-9] |
| \W | non-word character [^a-zA-Z_0-9] |
| \d | Digit [0-9] |
| \D | non-digit [^0-9] |
| \n | new line |
| \r | carriage return |
| \t | tabulation |
| \s | white space |
| \S | non-white space |
| ^ | beginning of a line |
| $ | end of a line |
| \A | beginning of the string (multi-line match) |
| \Z | end of the string (multi-line match) |
| \b | word boundary, boundary between \w and \W |
| \B | not a word boundary |
| \< | beginning of a word |
| \> | end of a word |
| {n} | matches exaclty n times |
| {n,} | matches a minimum of n times |
| {x,y} | matches a min of x and max of y |
| (a|b) | ‘a’ or ‘b’ |
| * | matches 0 or more times |
| + | matches 1 or more times |
| ? | matches 1 or 0 times |
| *? | matches 0 or more times, but as few as possible |
| +? | matches 1 or more times, but as few as possible |
| ?? | matches 0 or 1 time |