For example if you need to seacrh for '(' character use '\(', that means escape character is '\'. Example:
varbinary\(max\)
At the beginning of each line:
^
At the end of each line
$
To find (or delete) everything after ']' charachter use following Regular expression:

\].*

My shortcut target looks like this:

"C:\Program Files (x86)\Notepad++\notepad++.exe" -multiInst

 

Taken from here.