expr is a shell command that evaluates arithmetic expression, given as argument to it. The multiplication symbol *, will be treated as metacharacter by shell
Q. No. :
15
Question :
In vi editor to move forward to beginning of word
A :
b is used
B :
e is used
C :
w is used
D :
f is used
Answer: C
Q. No. :
16
Question :
Which of the following file names cannot be displayed if ls * is run?
A :
-Xy
B :
#x
C :
.x
D :
hidden
Answer: C
Q. No. :
17
Question :
which command is used to go to end of line in vi editor?
A :
e
B :
w
C :
$
D :
b
Answer: C
Q. No. :
18
Question :
The command cat > x
A :
is invalid
B :
creates a file x and displays an error message
C :
creates a file x and waits for the user to give input from keyboard
D :
none
Answer: C
Q. No. :
19
Question :
To assign all premissions to the owner, read and write premissions to the group, and only execute permissions to the others