d$! DO SCIDEF $! Provides a set of standard definitions of SCI services. ,$! $! This procedure defines a number of Known commands that may $! be useful. All of these can be exectued, either via DO or other X$! means. The commands defined are as follows: $! $! ASSU COST CRT CYCLE EXE FIND $! ICE INFO KILL MAIL $! MAR PIP QUE RAT L$! RNO SH SOS TREE USAGE $! WHO $! x$! note.. It also defines DEFDIR to the current directory so that the $! user can "SET DEF DEFDIR" and return to his original directory. @$! $!-end.of.info- $ 4$ who :== mcr who.exe $ usage:== @sci_com:usage $ tree :== @sci_com:tree . $ sos :== @sci_com:sos $ rno :== @sci_com:rno ( $ rat :== @sci_com:rat $ que :== @sci_com:que $ pip :== mcr pip.exe T $ mar :== macro $ mail :== mcr mail.exe  $ kill :== @sci_com:kill $ ice :== mcr ice $ find :== @sci_com:find  $ exe :== @sci_com:exe H $ cycle:== @sci_com:cycle $ cost :== @sci_com:cost t$ assu :== assign/user