(a) Use date command to print the current date and time. (b) Use date command to

Question

(a) Use date command to print the current date and time. (b) Use date command to print the current date and time in the following format: 2018-09-12 18-13-11s where this would be recorded on September 12, 2018 at 18 hours 13 minutes and 11 secondls (c) Use a Unix command that prints your current username. (d) Use a Unix command that prints your current userID (e) Use the Unix command cat to create a file named info.txt that has exactly four lines. These four lines, from line 1 to line 4, are: your first name, your last name, your CS userid, and your banner number (f) Use cat to show the content of the file created. (8) Use a Unix command to show the lines (h) Enter a Unix command to verify that this file has exactly four lines. Your command from file info.txt sorted alphabetically. should print a single integer (to the monitor) that is the number of lines in this file followed by a space character and then the file name.

Explanation / Answer

Answers:

In shell scripting

a) UNIX command to print date and time -

now=$(date)

echo "$now"

b) echo "$ date +"%Y-%m-%d %H-%M-%S"

c) echo "$USER"

d) uid="$(id -u)"

echo "User name ID (UID) : $uid"

-u flag tells you to give only ID.

** according to chegg policy I can only answer max of 4. post rest as separate question

%H hour (00..23)

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