CSCI 1300 Computer Science 1: Programming
Spring 2004
Karl Winklmann

Here are some useful commands.

     Example                         Effect

     mkdir 1300project               create a new directory
     cd 1300project                  change to a directory
     cd ..                           change to "parent" directory
     d:                              change drive
     copy main.cxx assign2.cxx       copy a file
     ren Makefile.txt Makefile       change name
     more r.bat                      scroll through file
     del main.exe                    delete a file
     dir                             list directory contents
     tree /f                         show directory and subdirectories
                                          and files
     help tree                       get information about a command
     dir | more                      the 'more' presents the output
                                          one screenful at a time
     

Very useful, you can put a list of commands into a file and then execute those commands by typing the file name. The file extension needs to be "BAT", short for "batch". For example, if R.BAT contains

     if EXIST main.exe DEL main.exe
     if EXIST main.o DEL main.o
     g++ -g -c -Wall main.cxx
     bgi++ -o main.exe main.o
     if EXIST main.exe main

then simply typing R will recompile and (if no compilation errors occurred) run your newly compiled program main. The first two lines delete main.o and main.exe so that in case of compilation errors you don't end up executing the old main. The "if EXIST" part avoids error messages if the file to be deleted does not exist. [The second line was added after this page was first posted.]