Oh, I like it! Then you’ll understand my reference to PIP (Peripheral Interchange Program, IIRC), the Swiss Army Knife of commands. You used it to copy files, delete them, create them, list them, concatenate them, etc., as well as to create/delete directories, initialize volumes, format disks, send data to a terminal, send a file to a printer, and on and on. Someone once suggested some useful extensions to the command, like:
[ul]
[li]Genera (Symbolic’s Lisp Machine OS)[/li][li]VMS[/li][li]Solaris[/li][li]AIX[/li][li]Irix[/li][li]FreeBSD and OpenBSD[/li][li]Older versions of MacOS (when it was still on 68k’s)[/li][li]Assorted Linux distros[/li][li]Assorted Microsoft OS’s[/li][/ul]
In the order I was exposed to them:
Timex Sincliar 1000
Apple IIe
Commodore 64
Tandy TRS-80
MS-DOS 2.0
MS-DOS 3.2
MS-DOS 4.0
MS-DOS 5.0
MS-DOS 6.x
Windows 3.1 (If you can call it an OS)
VAX-VMS
Windows 95
Palm OS 3
Windows 98
Windows NT 4.0
Palm OS 5
Windows 2000 Server
Windows XP
Windows CE
Windows Server 2003
Red Hat Linux 7
HP-UX
Does it really count if you already knew the previous version of the OS? I knew MS-DOS 2.0 very well when version 3 came out and there was next to no learn curve. There was a bit of a learning curve when I had to learn Windows NT 4 though, mainly for the administrative and networking options.
Versions are splitting hairs IMO so I won’t use it to pad my resume:
CP/M (Apple language cards and Kaypro)
Apple DOS
whatever they were using on MACs before color.
PC/MS-DOS 2.11 and up inclusing proprietary flavors for Sanyo
DR-DOS
Windows* 2.0 to present
OS/2
HP-UX
Solaris/SunOS
MPE (proprietary HP)
Currently spending most of my time with MP-RAS (NCR’s flavor of Unix SvR4 for massively parallel clusters)