Programming Assignment # 1

C and UNIX

 

The purpose of this assignment is to get you more familiar with Unix/Linux and those constructs of C that are not part of C++.

Write a C program (on a Unix/Linux system) that counts and displays the number of words, non-white space characters, and/or lines in a text file. The name of the input file is to be provided to the program as a command line argument. In addition, the program takes option flags to determine what actions to take. The command format is as follows:

                        command    [-clw]    inputfile

where the presence of a flag indicates the following actions:


c:  display the number of characters in inputfile.


l:   display the number of lines in inputfile. 


w: display the number of words in inputfile.

Flags can be specified in any order.  If no flags are specifyed, the command will by default display the number of characters, words, and lines. For any other format, the program should generate an appropriate error message.   Similarly, if the input file can  not be read the program should generate an appropriate error message.

For this project, I highly recommend that you use one of the common Unix editors: vi, emacs, or Pico.  Check out these references for the vi editor and emacs and pico

Be sure to document your program. Documentation should include: (1) The name of the author of the program (your name) and the date it was written, (2) a concise description of what the program does, (3) a clear description of its limitations if it does not meet all specifications, and (4) comments of critical code and data declarations. The same should also be done for each function written in the program. I will not grade any program that does not include the name of its author or a description of what it does.

Posted Date: 9/11/2012 12:48:09 PM | Location : United States

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Programming Assignment # 1 C and UNIX The purpose of this assignment is to get you more familiar with Unix/Linux and those constructs of C that are not part of C++. Write a C program (on a Unix/Linux system) that counts and displays the number of words, non-white space characters, and/or lines in a text file. The name of the input file is to be provided to the program as a command line argument. In addition, the program takes option flags to determine what actions to take. The command format is as follows: command [-clw] inputfile where the presence of a flag indicates the following actions: c: display the number of characters in inputfile. l: display the number of lines in inputfile. w: display the number of words in inputfile. Solution: #include #include #include #define MAX_ROW 5 #define MAX_COL 80 void main(){ char name[MAX_ROW][MAX_COL],c; int lines=1; //bcoz. first line will be left to count.int words=1; //bcoz. first word will be left to count.int chars=1; //bcoz. first char will be left to count. clrscr(); cout<<"===Input Status===\n"; cout<<"Enter string termanate by # : "; cin.get(c); //Finding no. of lineswhile(c != '#'){ cin.get(c); chars++; if(c==' ' || c=='\n') words++; if(c=='\n') lines++; } cout<<"\n"< cout<<"-------------------------------------\n"; cout.setf(ios::left,ios::adjustfield); cout<<"\n"< cout.setf(ios::right,ios::adjustfield); cout< cout.setf(ios::left,ios::adjustfield); cout<<"\n"< cout.setf(ios::right,ios::adjustfield); cout< cout.setf(ios::left,ios::adjustfield); cout<<"\n"< cout.setf(ios::right,ios::adjustfield); cout< getch(); } Posted by diana | Posted Date: 9/12/2012 12:55:12 AM

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