Questions
21
What are positional parameters?
Answer: special variables for assigning arguments from the command line
22
To run the script, we should make it executable first by using _____
Answer: chmod +x
24
Which one of the following option is used for checking that the string is NULL string?
Answer: -z
26
Which of the following option is used for checking if the file is readable or not?
Answer: -r
27
To check if the file exists and is executable we have to use ___ option with test.
Answer: -x
28
____ option is used for checking whether a particular file is older than a specified file.
Answer: -ot
29
To spawn a child of our own choice for running the script, we can use ___ command.
Answer: sh
32
The complete set of positional parameters is stored in ______ as a single string.
Answer: $*
33
Which of the following is used for storing the number of positional parameters?
Answer: $#
34
Which of the following option is used for checking if the file is writable or not?
Answer: -w
35
In a system, if 5 people are currently using the vi editor. then the number of corresponding processes will be
Answer: 5
37
The permission bits of a file noname. can be set to _rws_ _x_ _x by the command.
Answer: None of the above
38
/bin/passwd has the user execution permission set to 's' because
Answer: All of these
