Linux/Unix Program 1, Computer Programming, Programming Languages

**This programming assignment is for use in the LINUX/UNIX environment!!

Introduction:
System administration often requires custom written programs and tools. One problem a system admin faces is deleting oversized files on the system.

Assignment Description:
This assignment is to write a program to find files that exceed a given threshold in size. This tool will allow the system admin to find those files that are dominating the usage of the file system.

Program Requirements:
1) The program will take 2 arguments, an options argument and a size argument.
2) The size argument is a number representing the threshold size. For example, if 10 is entered, it will find all files larger than 10 megabytes.
3) The options are to be as follows:
1. -f (this option will display the file name
2. -s (this option will calculate the summary of all file sizes)
3. -t (this option will display the total summary only.
These arguments may be entered in single option fashion or multiple. Example:

$filesize -sf 10

-This will display all files over 10 megabytes and include a summary of all files sizes.
The output is as follows:

80 /home/smith/Tools/decode.tgz
28 /home/smith/Tools/parse_code.a

**NOTE: that decode.tgz is 80 MB and parse_code.a is 28 MB.

4) The program will take the file list in as a stream from the standard input. The "find" command will be used to create the stream, but no options will be allowed to be used.
The "find" command is used here as a simplifying element of the program.
5) The program will use the "stat" system call to filter out dir/block/link/socket files and only return "regular" files.
6) The program will use the "stat" system call to get the file size.



SAMPLE CODE THAT CAN BE USED (You Don''t HAVE to use this):

For POSIX environment:

struct stat sb;
int result = 1; /* result */
if (msg) msg[0] = ''\0'';
if (stat(FN,&sb) == 0) {
if (S_ISDIR (sb)) result = 0;
else if (S_ISFIFO(sb)) result = 0;
else if (S_ISBLK (sb)) result = 0;
else if (S_ISSOCK(sb)) result = 0;
}
}
Posted Date: 2/2/2012 2:11:48 PM | Location : United States







Related Discussions:- Linux/Unix Program 1, Computer Programming, Assignment Help, Ask Question on Linux/Unix Program 1, Computer Programming, Get Answer, Expert's Help, Linux/Unix Program 1, Computer Programming Discussions

Write discussion on Linux/Unix Program 1, Computer Programming
Your posts are moderated
Related Questions
There actually isn't all that much to this section. All we are going to do now is work a quick illustration using Laplace transforms for a 3 rd order differential equation therefo

Assignment for Networing&camunication

The creation of the menu will involve writing procedural code, using decision logic, writing a loop, and using the case statement.  Although it is not required for grading, it is r

need someone to write a simple cobol program for me..urgent

In combat simulation software, exploding land mines cause damage to military vehicles. In addition to the damage done to the vehicles themselves, we are interested in the number of

Suppose L is a context-free language and L' is regular. Show that L∩ L' is a context- free language. Specifically, if you're given a PDA diagram of L and a DFA diagram for L' , des


For this assignment you will read a file expression.txt and create an expression tree. The expression will be a valid infix expression with the all the necessary parentheses so tha

Extend the SpaceRocks game and provide a warp feature which allows the ship to jump to a random location to escape a rock. The warp feature is only activated once the shields have

1.  Use mathematical induction to prove Whenever n is a positive integer. 2.  Use loop invariant to prove that the program for computing the sum of 1,...,n is correct.