TOP
                    /   \
                LEV1A   LEV1B
               /             \
            LEV2A           LEV2B
         


Figure 1 - Changes from Unix Make to Digital/VMS MMS.
         
UNIX  =  =  =  =  =  =  >>>   VAX
         
/dir/sub1/sub2/file           [dir.sub1.sub2]file
         
../file                       [-]file
         
../dir/file                   [-.dir]file
         
./dir/file                    [.dir]file
         
cc -o file1 file2 file3       cc /obj=file1 file2,file3
ld -o file1 file2 file3       link /exe=file1 file2,file3
         
cc -O -I path -Ditem          cc /optimize /include=path -
                                      /define=item
         
.SUFFIXES: list               .SUFFIXES
                              .SUFFIXES list
         
include file                  .INCLUDE file
         
# comment                     ! comment
         
ar cr lib files               library/create lib
                              library/replace files

mv file path_or_file          copy file path_or_file
         
cd path                       set default path
cd ..                         set default [-]
cd path_w/o_period            set default [.path_w/o_period]
         
command1 ; command2           command1    ! only one per line
                              command2

label:                        label :     ! requires space

make -f file                  mms /description=file
make item="stuff"             mms /macro="item=stuff"

rm file                       delete file;   ! latest version
                              delete file;*  ! all versions
 

Figure 2 - UnixIO and Curses Calls Supplied with Vax C Compiler.

UNIXIO

close           creat           dup             dup2
open            read            write           lseek
fileno          fstat           stat            getname
isapipe         isatty          ttyname

CURSES

[w]addch        [w]addstr       box             [w]clear
clearok         [w]clrattr      [w]clrtobot     [w]clrtoeol
[no]crmode      [w]delch        [w]deleteln     delwin
[no]echo        endwin          [w]erase        [w]getch
[w]getstr       getyx           [w]inch         initscr
[w]insch        [w]insertln     [w]insstr       longname
leaveok         [w]move         mv[w]addch      mv[w]addstr
mvcur           mv[w]delch      mv[w]getch      mv[w]getstr
mv[w]inch       mv[w]insch      mv[w]insstr     mvwin
newwin          [no]nl          overlay         overwrite
[w]printw       [no]raw         [w]refresh      [w]scanw
scroll          scrollok        [w]setattr      subwin
[w]standend     [w]standout     touchwin        wrapok