Q. Which symbol is used for finding the length of the string?

View solution

Q. Which of the following pattern is used for extracting a substring using expr?

View solution

Q. expr is an _____ command.

View solution

Q. ____ statement is used for shifting arguments left.

View solution

Q. Which one of the following is an internal command?

View solution

Q. Which symbol is used with the set command for command substitution?

View solution

Q. The ____ allows us to read data from the same file containing the script.

View solution

Q. Which of the following command doesn’t accept a filename as an argument?

View solution

Q. We can use the here document with interactive programs also.

View solution

Q. Any command using standard input can take the input from here document.

View solution

Q. ____ command is the appropriate way to interrupt a program.

View solution

Q. Suppose x =10, then what will be the value of x$x$?

View solution

Q. Given x=10 then,

x$x$ == $x$x.

The given statement is ____

View solution

Q. A shell script stopped running when we change its name. Why?

View solution

Q. Where is the exit status of a command stored?

View solution

Q. Which of the following is false ?

View solution

Q. test statement cannot ______

View solution

Q. ____ option is used with test for checking if the file exists and has the size greater than zero.

View solution

Q. Every time shift command is used, the leftmost variable is lost.

View solution

Q. User’s environment mode created using su – is terminated using ____

View solution