Q. To check if two files are linked to each other, we can use -ef option.

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Q. case statement should have a corresponding closing esac.

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Q. The ___ option in case statement matches any option not matched by the previous options.

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Q. case can also be used for matching multiple patterns.

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Q. case can also use wildcards to pattern matching.

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Q. Which command is used for computation and string handling?

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Q. expr can perform ____ arithmetic operations.

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Q. Which of the following is performed by expr string handling’s function?

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Q. The string to be worked upon is placed on the left of the colon when using expr string handling function.

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

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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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