1) Which of the following command provides the list of the functions defined in the login session?
2) The keyword ‘local’ is used
to define a variable within a function for its local scope![]()
to redefine any global variable![]()
this is not a valid keyword![]()
none of the mentioned![]()
Answer : A Discuss
3) Functions improves the shell’s programmability significantly, because
when we invoke a function, it is already in the shell’s memory, therefore a function runs faster than seperate scripts![]()
function will not provides a piece of code for repetative tasks![]()
all of the mentioned![]()
none of the mentioned![]()
Answer : A Discuss
4) In the shell, by default, all variables are considered and stored as
5) Which command reads user input from the terminal and assign this value to a variable name?
6) Which one of the following statement is true about variables in shell?
variables do not require declaration before assigning value to them![]()
variables are case sensitive![]()
to extract the contents of a variable, we have to provide the variable a preceding $![]()
all of the mentioned![]()
Answer : D Discuss
7) Which one of the following is not a valid shell variable?
8) To redefine a variable, it can be removed from the list of variables by using the command
9) Which built-in command performs integer arithmetic in bash shell?
10) Which expression use the value of the enclosed arithmetic expression?