Question

For each item, answer the question and show the command(s) you used. Place your answers in a word processing document. Clearly number/label each answer. For each item, answer the question by showing the command(s) used and the output (or typed answer). 1. Use the whatis command to determine the purpose of the Is command. 2. Use the man to determine what the-R option does when used with the date command. 3. Use the man program to determine what option you can use with the cal command to print the current, previous, and next months with a single command. 4. Use the cal command to determine on what day of the week you were born.

Answer 1

Whatis command is helpful to get brief information about Linux commands or functions. Whatis command displays man page single line description for command that matches string passed as a command line argument to whatis command. Whatis command searches for string in its index databases which is maintained by mandb program.

-R output date and time in RFC 2822 format. Example: Mon, 14 Aug 2006 02:34:56 -0600

date -R

cal -3 Display the previous, current and next month surrounding today.

ncal -w -d 1984-06

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