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Basics
Symbol | Description: |
---|---|
^ |
Start of a string |
$ |
End of a string |
. |
Wildcard - matches any character, except a newline |
| |
Matches a specific character or group of characters on either side |
\ |
Escape a special character |
e.g. Any word characters between literal brackets
\(\w+\)
e.g. 10 digits
.{10}
e.g. Match a
or b
a | b
e.g. Empty line:
^$