Create OS X user

gistfile1.txt

MYNAME=john
dscl . create /Users/$MYNAME
dscl . create /Users/$MYNAME  UserShell /bin/bash
dscl . create /Users/$MYNAME  UniqueID 600
dscl . create /Users/$MYNAME  PrimaryGroupID 20
dscl . create /Users/$MYNAME  NFSHomeDirectory /Users/$MYNAME
dscl . passwd /Users/$MYNAME  secret
dscl . append /Groups/admin GroupMembership $MYNAME
mkdir /Users/$MYNAME
chown $MYNAME:staff /Users/$MYNAME
visudo # add $MYNAME to sudofile