I noticed that a question about shell scripting was closed as "off-topic", but I don't understand the reason for this decision. Is it true that certain questions about shell scripting (such as this one) are considered "off-topic"? To me, it seems counter-intuitive for this question to be identified as "off-topic". Can this specific closing reason be justified, or should the question be reopened?
As far as I know, questions about shell scripting or Unix commands are considered on-topic on Stack Overflow. Is there some exception to this rule that I'm unaware of?