91. mailx command is used for sending and receiving emails.
92. All the user information is stored in . . . . . . . .
93. What does -i option do?
94. ':w' command can be used to write selected lines.
95. A file can be recognized as an ordinary file or directory by . . . . . . . . symbol.
96. Like chmod, chown and chgrp can also use . . . . . . . . option.
97. Which of the followings command(s) is used to kill the login shell?
98. Which of the following command is used to delete a single line?
99. A system call is a routine built into the kernel and performs a basic function.
100. The . . . . . . . . variable stores the name of the file currently being processed.
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