1 Readings, Assignments, Labs, and ToDoIndex

• Read (at least) these things (All The Words):
  • Week 04 Notes HTML
  • Unix Shell I/O Redirection (including Pipes)
  • Startup Files: .bash_profile and .bashrc
  • List of Commands
• Read (All The Words), Do, and Save (but not for hand-in):
  • Lab Worksheet #04 ODT
  • Lab Worksheet #04 PDF
  • Quizzes will ask you about your answers in your saved worksheets.
• Read (All The Words), Do, and then Submit via Blackboard:
  • Assignment #04 - more command line and GLOB work
• READ ALL THE WORDS

2 Midterm Test #1 - Week 5 - Monday October 1 - 15%Index

• Midterm test dates are posted on the Course Home Page.
• Midterm Test #1 (Mon Oct 1) covers:
  • Week 02 Notes HTML
  • Assignment #02
  • Week 03 Notes HTML
  • Lab Worksheet #03 ODT
  • Assignment #03
  • Lab Worksheet #04 ODT
  • Assignment #04
• See the Practice Test #1 PDF and answer file in the Class Notes.
• You must read the Test Instructions before the test for important directions on how to enter your answers and the test version number on the mark-sense forms.

3 Lecture Notes for This WeekIndex

• Review last week. Did you do everything assigned last week?

• Send me the Rap video! If you license it for public view, I’ll post it.
  • videos published: CST8207 Rap Videos
  • any more?

4 Real Sysadmin WorkIndex

• Using the sleep command to delay an action: I was rebuilding a RAID1 array, and needed to temporarily stop the nightly disk-scan job, so that the RAID1 rebuild could finish on time.
  I used the estimated time to schedule a restart of the disk-scan 80 minutes from now, so that I wouldn’t forget:

# kill -STOP 22768
# cat /proc/mdstat
md3 : active raid1 sda4[2] sdb4[1]
1441603520 blocks [2/1] [_U]
[==================>..]  recovery = 91.2% (1316017856/1441603520)
finish=62.2min speed=33644K/sec
# ( sleep 80m; kill -CONT 22768 ) &
# exit