Class 5 Quiz

Question 1

What would you type at the command line if you wanted to know the network name of the Unix computer you were using?

Answer 1

hostname

Question 2

Name one of the two pager programs that allow you to read a long file one screenful at a time.

Answer 2

more or less

Question 3

If you started typing the name of a file on the command line and wanted Unix to supply the rest, what would you do?

Answer 3

hit the Tab key

Question 4

What would you type at the command line if you wanted to find all lines in the file results.txt that contained the word “homework”?

Answer 4

grep homework results.txt

Question 5

What would you type at the command line if you wanted to find all lines in the file results.txt that did not contain the word “homework”?

Answer 5

grep -v homework results.txt

Question 6

What would you type at the command line if you wanted to see the first 10 lines of the file log.txt?

Answer 6

head log.txt

Question 7

What would you type at the command line if you wanted to see the last 10 lines of the file log.txt?

Answer 7

tail log.txt

Question 8

What would you type at the command line if you wanted to see all the lines in the file results.txt in sorted order?

Answer 8

sort results.txt

Question 9

What would you type at the command line if you wanted to see all the lines in numbers.txt sorted in reverse numeric order?

Answer 9

sort -nr numbers.txt