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| CS604 ASSIGNMENT NO 1 WITH SOLUTION |
TOTAL MARKS 20
| Instructions: Please read the following instructions carefully before submitting the assignment. It should be clear that your assignment will not get any credit if: § The assignment is submitted after the due date. § The submitted assignment does not open or file is corrupt. § Assignment is copied (partial or full) from any source (websites, forums, students, etc.) Note: Lecture No. 1 to 6 are covered in this assignment. You have to upload only .doc file. Assignment in any other format (extension) will not be accepted and will be awarded with zero marks. Objective: The objective of this assignment is to provide hands on experience of: § To learn and understand the basic concept of an Operating System § To learn Directory Structure of Operating System For any query about the assignment, contact at CS604@vu.edu.pk Assignment Assignment Questions: Question No 1 12 Marks The following figure shows the directory structure in a UNIX/Linux system. Suppose a user Zulfiqar has a subdirectory Courses, under his home directory. This Courses directory contains subdirectories for the different courses that he has taken for teaching i.e. (CS204 and CS604). |
| If Zulfiqar is currently in the Courses directory then write UNIX/Linux commands to perform each of the following tasks. Solution1. How he can displays information about a current directory (including descendants) or files; wildcards supported? ~teacher \zulfiqar\courses #ls-i 2. How he can change file access and modification times? ~teacher \zulfiqar\course #touch-a file1 ~teacher \zulfiqar\course #ls-m file1 3. How he can change directory and refer to the directory for cs604 course? ~teacher \zulfiqar\courses #cd cs604 4. Right after the login, how he can concatenate or display files? ~teacher \zulfiqar\courses #cat file1.txt ~teacher \zulfiqar\courses # cat file1.txt file2.txt 5. How he can display the absolute pathname of his working directory? ~teacher \zulfiqar\courses\cs604 #pwd 6. How can he remove an empty directory under cs604 directory? ~teacher \zulfiqar\course\cs604 #rmdir slides Question No 2 08 Marks Draw three state transition diagram of the following: 1. Diagram in which a process completes its execution with in its time line. 2. Diagram in which process never block itself / never get blocked and completes its execution. SOLUTION |
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