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

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Q. expr is an _____ command.

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Q. ____ statement is used for shifting arguments left.

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

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

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

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

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

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

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

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

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Q. Given x=10 then,

x$x$ == $x$x.

The given statement is ____

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

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

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Q. Which of the following is false ?

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Q. test statement cannot ______

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

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

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

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Q. Which command is used by the system administrator to set the date of the system?

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