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- Question
The command that can be used to restrict incoming messages to a user is
Options- A. mesg
- B. grep
- C. halt
- D. sleep
- E. None of the above
- Correct Answer
- mesg
- 1. Major expressions used with find command to select file is it has been accessed in more than 375 days, is
Options- A. -atime +365
- B. -mtime + 365
- C. -atime -365
- D. -mtime -365
- E. None of the above Discuss
- 2. The special shell variable $* is used
Options- A. to exit status of ast command executed.
- B. to process number of the current shell
- C. to list the positional parameters
- D. to name the command being executed
- E. None of the above Discuss
- 3. Which of the following commands is used to have a two-way communication with any person who is currently logged in?
Options- A. mail
- B. mesg
- C. write
- D. grep
- E. None of the above Discuss
- 4. The UNIX file system stores a data in physical blocks of
Options- A. 1024 bytes
- B. 2048 bytes
- C. 512 bytes
- D. 256 bytes
- E. None of the above Discuss
- 5. You can append to a file instead of overwriting by using the
Options- A. > symbols
- B. >> symbols
- C. < symbols
- D. << symbols
- E. None of the above Discuss
- 6. Which command is used to display all the lines with the string 'sales' from the file empl.lst?
Options- A. cut sales empl.lst
- B. /sales > empl.lst
- C. grep sales empl.lst
- D. cat | /sales > empl.lst
- E. None of the above Discuss
- 7. Which command is used to save the standard output in a file, as well as display it on the terminal?
Options- A. more
- B. cat
- C. grep
- D. tee
- E. None of the above Discuss
- 8. The [line number G] key allows you
Options- A. to move cursor left by one position
- B. to move cursor right by one position
- C. to move cursor down by one line
- D. to move cursor to the beginning of the line specified by the number
- E. None of the above Discuss
- 9. Which command is used with vi editor to save file and remain in the editing mode?
Options- A. :q
- B. :w
- C. q!
- D. :x
- E. None of the above Discuss
- 10. Which command is used to terminate all processes in your own system except the login shell?
Options- A. kill 1
- B. kill 0
- C. cancel all
- D. cancel 1
- E. None of the above Discuss
Unix problems
Search Results
Correct Answer: -atime +365
Correct Answer: to list the positional parameters
Correct Answer: write
Correct Answer: 512 bytes
Correct Answer: >> symbols
Correct Answer: grep sales empl.lst
Correct Answer: tee
Correct Answer: to move cursor to the beginning of the line specified by the number
Correct Answer: :w
Correct Answer: kill 0
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