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Home » GAT Subject » Aptitude Test - 223
Hassan
1.Which command is used to make all files and sub-directories in the directory (progs) executable by all users?
A. chmod -R a+x progs
B. chmod -R 222 progs
C. chmod -1 a+x progs
D. chmod -R a+x progs
2.Which command is used to display and create files?
A. cat
B. vi
C. ed
D. cat
3.The second set of the three permissions (r-) indicates that
A. group has read permission only
B. other has read permission only
C. owner has read permission only
D. group has read permission only
4.Which column contains all details of the permissions of a file when you issue the ls -l command?
A. second
B. fourth
C. third
D. second
5.Which of the following commands is used to display your working directory?
A. dir
B. prompt $p$g
C. pwd
D. dir
6.While working with mail command, which command is used to save mail in a separate file?
A. s
B. r
C. w
D. s
7.The command used to compare the files is known as
A. comp
B. cmp
C. do
D. comp
8.Which command is used to terminate a process?
A. shutdown
B. haltsys
C. cancel
D. shutdown
9.Which option will be used with sort command to start sorting ofter the nth column of the (m+l)th field?
A. -m.n
B. +m.n
C. + n.m+1
D. -m.n
10.The cp command uses:
A. standard input file
B. standard output file
C. both input and output file
D. standard input file
11.Which symbol will be used with grep command to match the pattern pat at the beginning of a line?
A. ^pat
B. $pat
C. pat$
D. ^pat
12.Which command is used to sort the lines of data in a file in reverse order
A. sort
B. sh
C. st
D. sort
13.Which command is used to display the top of the file?
A. cat
B. head
C. more
D. cat
14.Which command is used to copy all files having the string chap and any two characters after that to the progs directory?
A. cp chap?? progs
B. cp chap* progs
C. cp chap[12] /progs/*.*
D. cp chap?? progs
15.Which command is used to change protection mode of files starting with the string emp and ending with 1,2, or 3?
A. chmod u+x emp[1-3]
B. chmod 777 emp*
C. chmod u+r ??? emp
D. chmod u+x emp[1-3]
16.Which command is used to remove a directory?
A. rd
B. rmdir
C. dldir
D. rd
17.Which of the following keys is used to replace a single character with new text?
A. S
B. s
C. r
D. S
18.Which command is used to extract specific columns from the file?
A. cat
B. cut
C. grep
D. cat
19.Which command sends the word count of the file infile to the newfile.
A. wc infile >newfile
B. wc newfile
C. wc infile - newfile
D. wc infile >newfile
20.Which of the following commands is used to display the directory attributes rather than its contents?
A. ls -l -d
B. ls -l
C. ls -x
D. ls -l -d
21.Which of the following files will displayed by this command cat *ch*
A. patch
B. catch
C. .ch
D. patch
22.The Octal number to be given alogn with chmod command to make a file readable, writable and executable to the owner, readable and executable to group and others is:
A. 0
B. 755
C. 744
D. 0
23.If you are to use [Control-c] as the interrupt key instead of [Del], then you will have to use
A. tty ^c
B. stty intr ^c
C. stty echoe
D. tty ^c
24.Which of the following is not a communication command.
A. write
B. mesg
C. mail
D. write
25.Which of the following keys is used to move the cursor to the end of the paragraph.
A. }
B. {
C. |
D. }
26.The command which transcribes the standard input to the standard output and also makes a copy of the same in a file is
A. tee
B. tr
C. sort
D. tee
27.Which command is used to remove a file?
A. remove
B. rm
C. mv
D. remove
28.Which symbol is used to separate more than one command in the same command line?
A. $
B. #
C. :
D. $
29.The agency that sits between the user and the UNIX system is called the
A. logic
B. profile
C. shell
D. logic
30.Which of the following commands is used to update access and modification times of a file?
A. grep
B. wc
C. touch
D. grep
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