Created
December 6, 2018 15:38
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OS Lab Questions
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OS Lab 2 | |
1. Display your login name, date ,who is the currently logged in user and home directory | |
2. Display sum of two integers | |
3. Create a file student.txt 3 in cse 3 in mech | |
Rollno|name|dept | |
Add 6 records | |
4.Display the number of records in student.txt | |
5 sort the file according to student name | |
6.Display student name and dept | |
7. Display students whose names begins with k | |
8. Display last two students | |
9. Create a soft link for the file created. | |
10.Count the number of processes in the system | |
Answers: | |
1. who;cd ~;pwd | |
2. a=10;b=20;echo `expr $a + $b` | |
3. cat > students.txt | |
1|A|CSE | |
2|B|MECH | |
3|C|CSE | |
4|D|MECH | |
5|E|MECH | |
6|F|CSE | |
4. cat students.txt|wc --lines | |
5. cat students.txt|cut -f 2 -d\||sort | |
6. cat students.txt|cut -f 2,3 -d\| | |
7. cat students.txt|grep \|k | |
8. cat students.txt|tail -n 2 | |
9. ln -s students.txt lol.test | |
10. ps aux| wc --lines |
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