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- Question
Which of the following commands is used to obtain a list of all files by modification time?
Options- A. ls -1
- B. ls -t
- C. ls -i
- D. ls -R
- E. None of the above
- Correct Answer
- ls -t
- 1. Which of the following directories contain all the Alias created by a user, including his login directory?
Options- A. /tmp
- B. /etc
- C. /usr
- D. /dev
- E. None of the above Discuss
- 2. Which of the following commands is used to display your working directory?
Options- A. dir
- B. prompt $p$g
- C. pwd
- D. path
- E. None of the above Discuss
- 3. Which command is used to change protection mode of files starting with the string emp and ending with 1,2, or 3?
Options- A. chmod u+x emp[1-3]
- B. chmod 777 emp*
- C. chmod u+r ??? emp
- D. chmod 222 emp?
- E. None of the above Discuss
- 4. Which command is used to display the top of the file?
Options- A. cat
- B. head
- C. more
- D. grep
- E. None of the above Discuss
- 5. Which of the following keys is used to replace a single character with new text?
Options- A. S
- B. s
- C. r
- D. C
- E. None of the above Discuss
- 6. Which symbol will be used with grep command to match the pattern pat at the beginning of a line?
Options- A. ^pat
- B. $pat
- C. pat$
- D. pat^
- E. None of the above Discuss
- 7. The agency that sits between the user and the UNIX system is called the
Options- A. logic
- B. profile
- C. shell
- D. erxc
- E. None of the above Discuss
- 8. Which command is used to remove the read permission of the file 'note' from both the group and others?
Options- A. chmod go+r note
- B. chmod go+rw note
- C. chmod go-x note
- D. chmod go-r note
- E. None of the above Discuss
- 9. Which column contains all details of the permissions of a file when you issue the ls -l command?
Options- A. second
- B. fourth
- C. third
- D. first
- E. None of the above Discuss
- 10. The command used to compare the files is known as
Options- A. comp
- B. cmp
- C. do
- D. ccp
- E. None of the above Discuss
Unix problems
Search Results
Correct Answer: /usr
Correct Answer: pwd
Correct Answer: chmod u+x emp[1-3]
Correct Answer: head
Explanation:
The head command displays the first few lines at the top of a file. It can be useful when you want a quick peek at a large file, as an alternative to opening the file.
Correct Answer: s
Correct Answer: ^pat
Correct Answer: shell
Correct Answer: chmod go-r note
Correct Answer: first
Explanation:
root@server [~]# ls -l .... -rw------- 1 root root 37 Dec 31 2009 .my.cnf -rw------- 1 root root 737 Aug 18 21:20 .mysql_history -rw-r--r-- 1 root root 264 Aug 18 16:51 .pearrc ....
Correct Answer: cmp
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