Expression |
Description |
x |
The character x. |
"x" |
An x, even if x is an operator. |
\x |
An x, even if x is an operator. |
[xy] |
The character x or y. |
[x-z] |
The character x, y, or z. |
[^x] |
Any character but x. |
. |
Any character but newline. |
^x |
An x at the beginning of a line. |
x$ |
An x at the end of a line. |
x? |
An optional x. |
x* |
Zero or more instances of x. |
x+ |
One or more instance of x. |
x\|y |
An x or a y. |
\(x\) |
An x matched as a sub-expression. |
x{m,n} |
M through n occurrences of x. |
\n |
A back reference, where n is a digit 0 through 9. |
Example |
\(.*"."ini\)\|\(.*"."bat\) |
Searches for all files that end with ".ini" or ".bat". |