How can I edit multiple lines with a specific pattern?

Question

I have a *.txt file with 10,000 lines. The lines are E-Mail and password divided by a ":", so like

E-Mail:Password

I want to delete the E-Mail addresses on every single line at once, so I end up with the passwords only. How can I do that?

Thanks in advance.

Answer 1

Try:

:%s/^[^:]*://

Matches from the start of the line all not-: until the first : and replaces them with nothing.

Answer 2

Ralf's answer is great. Here's another way you could do it as well:

:%norm df:

:%norm means type the following keys on every line. df: means delete until your find the next ':'.