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- Question
Which of the following commands is used to list contents of directories?
Options- A. ls
- B. lp
- C. dir
- D. tar
- E. None of the above
- Correct Answer
- ls
- 1. Which option is used with rm command to make the command prompt the user with each filename and a?, before acting on it
Options- A. -r
- B. -x
- C. -i
- D. -1
- E. None of the above Discuss
- 2. Which command sends the word count of the file infile to the newfile.
Options- A. wc infile >newfile
- B. wc <infile >newfile
- C. wc infile - newfile
- D. wc infile | newfile
- E. None of the above Discuss
- 3. The field separator in cut command is specified with
Options- A. -a option
- B. -d option
- C. -r option
- D. -x option
- E. None of the above Discuss
- 4. Which command is used to extract specific columns from the file?
Options- A. cat
- B. cut
- C. grep
- D. paste
- E. None of the above Discuss
- 5. Which command is used to count just the number of characters in a file?
Options- A. wc - 1
- B. wc -c
- C. wc -w
- D. wc -r
- E. None of the above Discuss
- 6. Which option will be used with sort command to start sorting ofter the nth column of the (m+l)th field?
Options- A. -m.n
- B. +m.n
- C. + n.m+1
- D. +(m+l).n
- E. None of the above Discuss
- 7. Which command is used to concatenate all files beginning with the string 'emp' and followed by a non-numeric characters?
Options- A. cat emp[!0-9]
- B. more [emp][!0-9]
- C. cat emp[x-z]
- D. cat emp[a-z]
- E. None of the above Discuss
- 8. Which command is used to copy all files having the string chap and any two characters after that to the progs directory?
Options- A. cp chap?? progs
- B. cp chap* progs
- C. cp chap[12] /progs/*.*
- D. cp chap?? /progs/*
- E. None of the above Discuss
- 9. Which command is used to display and create files?
Options- A. cat
- B. vi
- C. ed
- D. lyrix
- E. None of the above Discuss
- 10. 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
Unix problems
Search Results
Correct Answer: -i
Correct Answer: wc infile >newfile
Correct Answer: -d option
Correct Answer: cut
Correct Answer: wc -c
Correct Answer: +m.n
Correct Answer: cat emp[!0-9]
Correct Answer: cp chap?? progs
Correct Answer: cat
Correct Answer: ls -l -d
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