Q. readonly command is used to protect a variable from reassignment.

View solution

Q. C shell uses which command for assigning values to variables?

View solution

Q. The variable assignment as x = 10 (whitespace on both sides of =) will work if we are not using C shell?

View solution

Q. ____ command displays all the variables available in the current shell.

View solution

Q. Environment variable names can be defined only in uppercase.

View solution

Q. The shell has ____ prompts.

View solution

Q. Which one of the following command will change our primary prompt from $ to C> ?

View solution

Q. Which environment variable is used to display our username?

View solution

Q. Which one of the following is not an environment variable?

View solution

Q. Which escape sequence is used with PS1 to show the hostname of our computer?

View solution

Q. Which of the following shells support the use of aliases?

View solution

Q. We can display an alias definition by using an alias with the name.

View solution

Q. Which command is used in bash and Korn shells to display the previously used commands?

View solution

Q. To display the last five used commands, which one of the following commands is used (in bash shell)?

View solution

Q. Which of the following symbols are used for accessing previous commands by event numbers?

View solution

Q. We can use relative addressing while executing previous commands.

View solution

Q. We can also execute previous commands by context.

View solution

Q. Which symbol is used as a shorthand for using the last argument to the previous command?

View solution

Q. To reverse any setting updated by set command we can use ____ symbol.

View solution

Q. The ____ acts as a shorthand representation of the home directory.

View solution