Unix problems
- 1. Which command is used to display and create files?
Options- A. cat
- B. vi
- C. ed
- D. lyrix
- E. None of the above Discuss
Correct Answer: cat
- 2. Which of the following commands is used to display the directory attributes rather than its contents?
Options- A. ls -l -d
- B. ls -l
- C. ls -x
- D. ls -F
- E. None of the above Discuss
Correct Answer: ls -l -d
- 3. Which command is used to remove a file?
Options- A. remove
- B. rm
- C. mv
- D. del
- E. None of the above Discuss
Correct Answer: rm
- 4. While working with mail command, which command is used to save mail in a separate file?
Options- A. s
- B. r
- C. w
- D. d
- E. None of the above Discuss
Correct Answer: s
- 5. The cp command uses:
Options- A. standard input file
- B. standard output file
- C. both input and output file
- D. neither standard input nor standard output file
- E. None of the above Discuss
Correct Answer: neither standard input nor standard output file
- 6. Which of the following is not a communication command.
Options- A. write
- B. mesg
- C. mail
- D. grep
- E. None of the above Discuss
Correct Answer: grep
- 7. Which command is used to display the characteristics of a process?
Options- A. pid
- B. du
- C. ps
- D. au
- E. None of the above Discuss
Correct Answer: ps
- 8. Which command will be used with vi editor to insert text to left of cursor?
Options- A. s
- B. S
- C. a
- D. i
- E. None of the above Discuss
Correct Answer: i
- 9. Which command is used to make all files and sub-directories in the directory (progs) executable by all users?
Options- A. chmod -R a+x progs
- B. chmod -R 222 progs
- C. chmod -1 a+x progs
- D. chmod -x a+x progs
- E. None of the above Discuss
Correct Answer: chmod -R a+x progs
- 10. If you are to use [Control-c] as the interrupt key instead of [Del], then you will have to use
Options- A. tty ^c
- B. stty intr \^c
- C. stty echoe
- D. stty echo \^a
- E. None of the above Discuss
Correct Answer: stty intr \^c
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