Unix problems
- 1. The command used to remove the directory is;
Options- A. rmdir
- B. rd
- C. remove
- D. rdir
- E. None of the above Discuss
Correct Answer: rmdir
- 2. The cat command is used to
Options- A. capture a file
- B. display a file
- C. print a file
- D. copy a file
- E. None of the above Discuss
Correct Answer: display a file
- 3. Which of the following shell's wildcards are used to match any number of characters including none?
Options- A. [ijk]
- B. [!ijk]
- C. ?
- D. *
- E. None of the above Discuss
Correct Answer: *
- 4. Which of following commands is used for an automatic reminder service?
Options- A. write
- B. mesg
- C. calendar
- D. mail
- E. None of the above Discuss
Correct Answer: calendar
- 5. Which symbol will be used with grep command to match the pattern pat at the end of a line?
Options- A. ^pat
- B. $pat
- C. pat$
- D. pat^
- E. None of the above Discuss
Correct Answer: pat$
- 6. The first set of the three permissions (rw) pertains to the owner of the file, indicating that the owner has
Options- A. executable permission only
- B. write and executable permissions
- C. both read and executable permissions.
- D. both read and write permissions
- E. None of the above Discuss
Correct Answer: both read and write permissions
- 7. Which command is used with vi editor to move the cursor to the left?
Options- A. i
- B. j
- C. k
- D. h
- E. None of the above Discuss
Correct Answer: h
- 8. Which command is used with vi editor scroll half page backward?
Options- A. [Control-d]
- B. [Control - u]
- C. [Control-c]
- D. [Control -P]
- E. None of the above Discuss
Correct Answer: [Control - u]
- 9. Which option is used with cmp command to give a detailed list of the byte number and the differing bytes in octal for each character that differs in both the files?
Options- A. -l
- B. -d
- C. -r
- D. -b
- E. None of the above Discuss
Correct Answer: -l
- 10. Which of the following command is used to go to home directory?
Options- A. cd..
- B. cd/
- C. cd
- D. cd HOME.
- E. None of the above Discuss
Correct Answer: cd
More in Computer Science:
Programming
Copyright ©CuriousTab. All rights reserved.