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1.

The command which transcribes the standard input to the standard output and also makes a copy of the same in a file is

Answer» The tee command reads standard input, then writes its content to standard output and simultaneously copies it into the specified file(s) or variables.
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2.

Which command is used to display the top of the file?

Answer» The head command displays the first few lines at the top of a file. It can be useful when you want a quick peek at a large file, as an alternative to opening the file.
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3.

Which column contains all details of the permissions of a file when you issue the ls -l command?

Answer» root@server [~]# ls -l .... -rw------- 1 root root 37 Dec 31 2009 .my.cnf -rw------- 1 root root 737 Aug 18 21:20 .mysql_history -rw-r--r-- 1 root root 264 Aug 18 16:51 .pearrc ....
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