Updated: 2014-11-07 17:39 EST
whoami
groups
ls -la, chown, sudo
rwx
notationchmod
Reminder: There are now two quizzes that you need to complete on Blackboard as part of your term Quiz mark. A third quiz will be posted before the Final Exam.
Check the due date for each assignment and put a reminder in your agenda, calendar, and digital assistant.
The worksheets are available in four formats: Open Office (ODT), PDF, HTML, and Text. Only the Open Office format allows you “fill in the blanks” in the worksheet. The PDF format looks good but doesn’t allow you to type into the blanks in the worksheet. The HTML format is crude but useful for quick for viewing online.
Do NOT open the ODT files using any Microsoft products; they will mangle the format and mis-number the questions. Use the free Libre Office or Open Office programs to open these ODT documents. On campus, you can download Libre Office here.
PS1, cd, find, less, ls, man, mkdir, passwd, pwd, rmdir
cat, clear, cp, find, grep, history, less, man, mv, rm, sleep, touch
alias, sum
date, head, nl, tail, tr, wc
chmod, ls -lid, umask
vim
vim
vimtutor
program on the CLS.Take notes in class! Your in-class notes would go here.
Understanding pathnames and symlinks:
1. Ways of creating files in /tmp:
$ touch /tmp/file ; cp foo /tmp/tmpfile ; mv bar /tmp/tmpfile
2. Create a directory in /tmp:
$ mkdir /tmp/dir
3. Create a symlink in /tmp with target "linux":
$ ln -s linux /tmp/symlink
De-reference (relative path): /tmp/symlink -> /tmp/linux
4. Create a symlink in /tmp/a/b/bar with target "../../a/../foo":
$ ln -s ../../a/../foo /tmp/a/b/bar
De-reference: /tmp/a/b/bar -> /tmp/a/b/../../a/../foo -> /tmp/foo
diff
command from GNU Diffutils:
diff file1 file2
<
are in file on left (file1
) ; lines starting with >
are in file on right (file2
).vimdiff
meld
(and gvimdiff
for VI)foo
and print them one per linefind
to find all inodes with that number and delete.Patrick Ouellette will be giving a presentation on the 3rd year Security program in B370 on Tuesday, November 11th at 5:30pm. More information on the program is available here: http://www.algonquincollege.com/sat/program/computer-systems-technology-security/
Number of students who entered their own name incorrectly on the mark-sense form: 12
Number of students who entered the wrong test version number: 37
Number of students who got question #45 wrong even though the answer was given in the Test Instructions printed at the top of the test: 5
Class scores for 139 (out of 159 registered) students:
95.6 93.3 91.1 91.1 91.1 91.1 91.1 91.1 91.1 88.9 88.9 88.9 86.7 86.7 84.4 84.4 84.4 84.4 84.4 84.4 84.4 83.6 82.2 82.2 82.2 82.2 82.2 81.5 80 80 80 77.8 77.8 77.8 77.8 77.8 77.8 77.8 75.6 75.4 73.3 73.3 73.3 73.3 73.3 73.3 73.3 73.3 71.1 71.1 71.1 68.9 68.9 68.9 68.9 66.7 66.7 66.7 64.8 64.7 64.4 64.4 64.4 64.4 64.4 64.4 62.7 62.7 62.5 62.2 60.4 60 60 60 60 57.8 57.8 56.4 55.6 53.9 53.9 53.3 52.8 52.8 52.2 52.2 51.7 51.7 51.1 51.1 51.1 50.1 49.6 48.9 48.9 48.9 48 47.4 46.7 46.7 46.7 45.3 44.4 44.4 44.4 44.4 43.9 43.4 42.2 41.8 41.8 40 38.8 37.8 37.8 37.8 37.2 36.6 35.5 33.4 33.4 33.3 31.1 31.1 29.3 28.9 25.9 24.4 24.3 23.5 21.6 21.5 20.9 20 15.5 14.6 14.2 13.3 8.9
90% - 100% 9 *********
80% - 90% 22 **********************
70% - 80% 20 ********************
60% - 70% 24 ************************
50% - 60% 18 ******************
40% - 50% 19 *******************
30% - 40% 12 ************
20% - 30% 10 **********
10% - 20% 4 ****
0% - 10% 1 *