UNIX for Dummies Questions & Answers

Hi All,

i am new on this forum, can someone please answer the following questions as i am also new for UNIX, you help would be much appreciated:
1. How do you delete the full directory hierarchy?
2. How do you find out all process run by user Kamran ?
3. how would you extract something tar.gz file ?
4. How could you search a string in a file?
5. how could you return a line count from csv file ?
6. Given a csv file with Colum c1 to c5, how could you return only c1, c2 and c5?
7. How can you show the delta between two text files?
8. how can you display non printing character in a text file?
9. How would you create a symbolic link?
10. how would you list row between 100 and 120 of large logerroe.log file?
11. How would you list the contains of directory includes all of its sub directories, providing full details and sorted by modification time?
12. how could you do find replace from command line ?
13. How could you run a script on scheduled time
14. someone spread several copies of binaries throughout the system, several of them possible in your path, how would you know which binaries you are using when calling from command line ?
15. how would you setup the value of environment variable to output of a command
if someone can help me for the answers it would be really great help, as i need the answer asap.

Many thanks

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