I'm trying to do a simple replace for all equal signs and subsequent characters until end of line: %s/\=.+\n/\n/. However this gives E866: (NFA regexp) Misplaced =.

If I try instead to simply replace all equal signs with %s/(\=)//, I get pattern not found though I know my text file contains equal signs.

Could someone tell me what I'm doing wrong? Thanks in advance

1 Answer 1


Presuming you are using the default and recommend setting of 'magic', you need to use = instead of \=, \+ instead of +, and \r instead of \n in the replacement text:

Try this:


But actually, you don't need to match and replace the newline, so this simplifies further:


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