Which character(s) cannot be placed in variable names? 1 year agoby Linux Questions Which character(s) cannot be placed in variable names? › Category: Introduction to Linux I › Which character(s) cannot be placed in variable names? Vote Up 0 Vote Down Linux Questions Staff asked 1 year ago Which character(s) cannot be placed in variable names? Hyphen (“-“) character Numeric characters Underscore (“_”) character Upper-case alpha characters Lower-case alpha characters Please login or Register to submit your answer Username or Email Address Password Remember Me FacebookXGoogle+PinterestLinkedIn