@juno First-time vim user?
@juno I think I see where you went wrong. tclsh isn't an editor. It's a kind of shell based on tcl (tool control language) as in TCL/TK.
@juno Wait. You probably knew tclsh wasn't an editor. Sorry.
@starbreaker :laughing: Yep, I did.
My takeaway from all this was to never assume 100% compatibility between modern Linux and some ancient UNIX variant.
@starbreaker 😆 It was tclsh on an old AIX machine.
Perhaps ironically, vim is my preferred editor.