regex - use sed to search and replace patterns via regular expressions -


trying replace within file including password space.

 password=xx%40%25pkz3l2jta http

tried following sed command, using regular expression http://en.wikipedia.org/wiki/regular_expression

  sed 's/password=(.)+/ /g' $file

and

  sed 's/password=[^ ]+/ /g' $file

none of above works. why?

try -r argument:

sed -r 's/password=[^ ]+/ /g' $file

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