Q. To change the login shell in some system (like Linux) we can use ____ command.

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Q. Wildcards are special characters which are used to replace or represent one or more characters.

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Q. Which of the following is not a wild-card?

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Q. What does the following command do?
$ echo *

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Q. Which command would be most suitable to remove the following files?
dirx diry dirz dirzw

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Q. Which of the following files will not be deleted using “rm chap??” ?

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Q. Which of the following command will list all the hidden filenames in our directory having at least three characters after the dot (.) ?

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Q. * and ? cannot match ____

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Q. rm chap0[1234] will delete all of the following files.

chap01 chap02 chap03 chap04

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Q. Which of the following files will not be listed using the following command?

ls chap0[1-4]

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Q. Which of the following symbol is used for negating the character class?

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Q. Which of the following shell doesn’t support ! symbol for negating the character class?

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Q. The command cd * will work.

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Q. Providing a backslash (\) before the wild card to remove its special meaning is called _____

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Q. Enclosing the wild card or the entire pattern within quotes is called ___

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Q. Redirection is a process of switching of the standard stream of data.

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Q. How many files are used for representing different streams?

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Q. Which stream is connected to the display?

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Q. Which stream is used for representing error messages?

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Q. The command wc < sample.txt will count data from the file sample.txt.

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