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- Question
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
- Correct Answer
- write
- 1. 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
- 2. 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
- 3. Which command allows you to view your file 24 lines at a time?
Options- A. more
- B. pg
- C. cat
- D. lp
- E. None of the above Discuss
- 4. Which command is used to move all files to the bin sub-directory of the parent directory?
Options- A. mv *.* /bin/
- B. mv * /bin/*
- C. mv * ../bin
- D. mv * ../bin *.*
- E. None of the above Discuss
- 5. Which of the following signs is used to back up over typing errors in vi?
Options- A. @
- B. #
- C. $
- D. !
- E. None of the above Discuss
- 6. 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
- 7. 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
- 8. 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 Discuss
- 9. 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
- 10. 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
Unix problems
Search Results
Correct Answer: 512 bytes
Correct Answer: >> symbols
Correct Answer: pg
Correct Answer: mv * ../bin
Correct Answer: #
Correct Answer: to list the positional parameters
Correct Answer: -atime +365
Correct Answer: mesg
Correct Answer: grep sales empl.lst
Correct Answer: tee
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