Q. The asterisk is a metacharacter which in the command "ls *.txt" means

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Q. A metacharacter is any character that

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Q. Which of the following Unix utilities are not commonly used to process regular expressions?

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Q. Which programming language has a powerful regular expression engine?

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Q. Which meta-noncharacter is used to indicate the end of the line?

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Q. Which meta-noncharacter is used to indicate the beginning of the line?

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Q. The character separating fields is called a

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Q. "Awk" is a program that is primarily concerned with formatting output. It is designed to work best with pieces of data called

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Q. The command "cd" (change directory) will return an exit status.

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Q. What special variable has the exit status?

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Q. Another name for exit status is

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Q. Passing information between programs is called.

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Q. A more complete means of communication between programs is called.

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Q. Which of the following is necessary in order to send a signal?

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Q. A signal trap is a set of instructions

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Q. Which special variable contains the PID of its own process?

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Q. Each signal name begins with the letters

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Q. Which signal is used to kill a running process?

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Q. What is a shell script?

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Q. Shell scripts need to be saved with an extension .sh .

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