Why does Red Hat Enterprise Linux console display error bash unary operator expected message while login?

Solution Unverified - Updated -


  • While login with user in Red Hat Enterprise Linux 6, it shows messages as follows.
[test@rhel ~]$ su - testuser
logname: no login name
-bash: [: =: unary operator expected
logname: no login name
bash: [: =: unary operator expected


  • Red Hat Enterprise Linux 6

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