Computer programs are all about working with data. In past chapters, we have focused onprocessing data at the file level. However, many programming problems nee...
In this final chapter on flow control, we will look at another of the shell’s looping constructs.The for loop differs from the while and until loops in that it ...
One feature that has been missing from our programs is the ability to accept and processcommand line options and arguments. In this chapter, we will examine the...