There is a link map on that link (hmmm, two different meanings of "link" there) that shows INDxxxxx CSECT names, so I think it establishes that IND is the component prefix.
FILE is pretty obvious, like the COPY in IEBCOPY. So the only remaining question is "why the dollar sign?" (Or pound sign, for those of you so geographically disposed.) At my old company we reverse-engineered the protocol. Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Phil Smith III Sent: Tuesday, November 27, 2018 8:47 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: IND$FILE -- where did the name come from? That link doesn't tell me anything about the name that I can see. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN