For this exercise, you are going to run a series of commands on a file and observe which time stamps are affected by which commands.

1. Make your 330/ws directory your current working directory.

2.a. Starting with the first command in the column on the left hand side of the chart

2.b. Perform the command listed in the Commands column on the left side of the chart.

3. Now apply each of the ls commands listed in the Commands row across the top of the chart. Apply each ls command to the file a2

4. Record the time stamp generated in the appropriate box.

5. After running the three ls commands, run the command


sleep 60

Time stamps are accurate only to the minute and this command will waste a minute doing nothing before allowing you to do the next step.

6. Move down one row

7. Repeat steps 2.b through 6 for all rows.
For the final command (mv a2 a2.m), apply the ls to the a2.m file.

8. Look down each column, circle the time stamp if it differs from previous row.