A-Shell v6.5 -- on Centos 7.9.2009 -- from AlphaLAN with AM62C terminal driver -- DIR v3.4(172) displays "I1" just in front of dot prompt when its results exceed 24 lines.

The same command -- from ATE with AM62CG driver - does not have this problem. Unfortunately, (AlphaLAN does not support the AM62CG driver.)

The problem is a little more mysterious than this: see below for results under a 50 line display.

The garbage is from the ESC sequence sent to the client terminal to activate ATE's vertical scroll bar (in cases where the DIR caused scrolling, which is why it doesn't always happen).

DIR actually had logic to detect whether the client supported the feature, but the logic had a loophole in it that the AM62C driver was falling into.

I've posted an update DIR.LIT 3.4(173) which should resolve that problem. You can download it by running the UPDCUR.LIT command while logged into SYS: within a 6.5 installation. (The DIR.LIT should be backwards compatible, so once you download it onto a 6.5 system, you can manually transfer it to a 6.4 system.)

Yay! That did that trick - problem gone! Thank you.

I rejoiced too soon. I still get "I1"s when I invoke certain command files which then cause scrolling.

For example: cmd:s.cmd

The problem does not occur in ATE, nor if I enter the same systat command at a dot prompt.

The problem was in a common function shared by DIR, SYSTAT, TYPE, and all the variations of COMPIL. They've now all be updated and can be downloaded via the UPDCUR utility.

Thank you. That seems to have solved the latest instance of the problem.