Mark Galeck <mark_gal...@pacbell.net> wrote, on 06 Sep 2016: > > Robert Elz graciously pointed out that 2.9.4 implictly says that ( is in fact > an operator, which solves my problem. Thank you to Robert!
No need to rely on something implicit. "Operator" has a definition in XBD chapter 3: 3.256 Operator In the shell command language, either a control operator or a redirection operator. This leads to: 3.113 Control Operator In the shell command language, a token that performs a control function. It is one of the following symbols: & && ( ) ; ;; newline | || The end-of-input indicator used internally by the shell is also considered a control operator. -- Geoff Clare <g.cl...@opengroup.org> The Open Group, Apex Plaza, Forbury Road, Reading, RG1 1AX, England
