password forgot

Hi, I forgot my password in git, such as resetting? Thank You Luciano

error

Hi, please, what should I do to fix this error? thanks Luko ~ $ git init error: malformed value for push.default: aguas error: Must be one of nothing, matching, simple, upstream or current. fatal: bad config variable 'push.default' in file '/Users/imac/.gitconfig' at line 16 -bash: __git_ps1: c