Last login: Tue Dec 4 15:09:03 on ttys008
Math-Tuttle-OSX:~ smtuttle$ cd humboldt/
Math-Tuttle-OSX:humboldt smtuttle$ cd f12cs279
Math-Tuttle-OSX:f12cs279 smtuttle$ cd 279lectures/
Math-Tuttle-OSX:279lectures smtuttle$ cd 279lect15-1
Math-Tuttle-OSX:279lect15-1 smtuttle$ date
Tue Dec 4 15:13:57 PST 2012
Math-Tuttle-OSX:279lect15-1 smtuttle$ date +%m
12
Math-Tuttle-OSX:279lect15-1 smtuttle$ date +%a
Tue
Math-Tuttle-OSX:279lect15-1 smtuttle$ date +%A
Tuesday
Math-Tuttle-OSX:279lect15-1 smtuttle$ date +%B
December
Math-Tuttle-OSX:279lect15-1 smtuttle$ date +%b
Dec
Math-Tuttle-OSX:279lect15-1 smtuttle$ date +%D
12/04/12
Math-Tuttle-OSX:279lect15-1 smtuttle$ date '+It is now %T on %h %d, 20%y% (%a).%nThank you for your interest'
It is now 15:20:04 on Dec 04, 2012 (Tue).
Thank you for your interest
Math-Tuttle-OSX:279lect15-1 smtuttle$ today=`date +%a`
Math-Tuttle-OSX:279lect15-1 smtuttle$ echo $today
Tue
Math-Tuttle-OSX:279lect15-1 smtuttle$ echo "log entry" >> log_${today}.txt
Math-Tuttle-OSX:279lect15-1 smtuttle$ ls
279lect15-1.odt
279lect15-1.pdf
log_Tue.txt
Math-Tuttle-OSX:279lect15-1 smtuttle$ more log_Tue.txt
log entry
Math-Tuttle-OSX:279lect15-1 smtuttle$ cal
December 2012
Su Mo Tu We Th Fr Sa
1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31
Math-Tuttle-OSX:279lect15-1 smtuttle$ cal 12 2013
December 2013
Su Mo Tu We Th Fr Sa
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31
Math-Tuttle-OSX:279lect15-1 smtuttle$ cal 2001
2001
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 6 1 2 3 1 2 3
7 8 9 10 11 12 13 4 5 6 7 8 9 10 4 5 6 7 8 9 10
14 15 16 17 18 19 20 11 12 13 14 15 16 17 11 12 13 14 15 16 17
21 22 23 24 25 26 27 18 19 20 21 22 23 24 18 19 20 21 22 23 24
28 29 30 31 25 26 27 28 25 26 27 28 29 30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 6 7 1 2 3 4 5 1 2
8 9 10 11 12 13 14 6 7 8 9 10 11 12 3 4 5 6 7 8 9
15 16 17 18 19 20 21 13 14 15 16 17 18 19 10 11 12 13 14 15 16
22 23 24 25 26 27 28 20 21 22 23 24 25 26 17 18 19 20 21 22 23
29 30 27 28 29 30 31 24 25 26 27 28 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 6 7 1 2 3 4 1
8 9 10 11 12 13 14 5 6 7 8 9 10 11 2 3 4 5 6 7 8
15 16 17 18 19 20 21 12 13 14 15 16 17 18 9 10 11 12 13 14 15
22 23 24 25 26 27 28 19 20 21 22 23 24 25 16 17 18 19 20 21 22
29 30 31 26 27 28 29 30 31 23 24 25 26 27 28 29
30
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 3 4 5 6 1 2 3 1
7 8 9 10 11 12 13 4 5 6 7 8 9 10 2 3 4 5 6 7 8
14 15 16 17 18 19 20 11 12 13 14 15 16 17 9 10 11 12 13 14 15
21 22 23 24 25 26 27 18 19 20 21 22 23 24 16 17 18 19 20 21 22
28 29 30 31 25 26 27 28 29 30 23 24 25 26 27 28 29
30 31
Math-Tuttle-OSX:279lect15-1 smtuttle$ cal 1
1
January February March
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 1 2 3 4 5 1 2 3 4 5
2 3 4 5 6 7 8 6 7 8 9 10 11 12 6 7 8 9 10 11 12
9 10 11 12 13 14 15 13 14 15 16 17 18 19 13 14 15 16 17 18 19
16 17 18 19 20 21 22 20 21 22 23 24 25 26 20 21 22 23 24 25 26
23 24 25 26 27 28 29 27 28 27 28 29 30 31
30 31
April May June
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 1 2 3 4 5 6 7 1 2 3 4
3 4 5 6 7 8 9 8 9 10 11 12 13 14 5 6 7 8 9 10 11
10 11 12 13 14 15 16 15 16 17 18 19 20 21 12 13 14 15 16 17 18
17 18 19 20 21 22 23 22 23 24 25 26 27 28 19 20 21 22 23 24 25
24 25 26 27 28 29 30 29 30 31 26 27 28 29 30
July August September
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 2 1 2 3 4 5 6 1 2 3
3 4 5 6 7 8 9 7 8 9 10 11 12 13 4 5 6 7 8 9 10
10 11 12 13 14 15 16 14 15 16 17 18 19 20 11 12 13 14 15 16 17
17 18 19 20 21 22 23 21 22 23 24 25 26 27 18 19 20 21 22 23 24
24 25 26 27 28 29 30 28 29 30 31 25 26 27 28 29 30
31
October November December
Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa
1 1 2 3 4 5 1 2 3
2 3 4 5 6 7 8 6 7 8 9 10 11 12 4 5 6 7 8 9 10
9 10 11 12 13 14 15 13 14 15 16 17 18 19 11 12 13 14 15 16 17
16 17 18 19 20 21 22 20 21 22 23 24 25 26 18 19 20 21 22 23 24
23 24 25 26 27 28 29 27 28 29 30 25 26 27 28 29 30 31
30 31
Math-Tuttle-OSX:279lect15-1 smtuttle$ cal 7 1776
July 1776
Su Mo Tu We Th Fr Sa
1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31
Math-Tuttle-OSX:279lect15-1 smtuttle$ man cal
Math-Tuttle-OSX:279lect15-1 smtuttle$ man printf
Math-Tuttle-OSX:279lect15-1 smtuttle$ textfile=log_Tue.txt
Math-Tuttle-OSX:279lect15-1 smtuttle$ printf "The file %s contains %i lines.\n" $textfile `wc -l < $textfile`
The file log_Tue.txt contains 1 lines.
Math-Tuttle-OSX:279lect15-1 smtuttle$ printf "%.3f" 13.7
13.700Math-Tuttle-OSX:279lect15-1 smtuttle$ printf "%.3f \n" 1.456789
1.457
Math-Tuttle-OSX:279lect15-1 smtuttle$ printf "%7s" moo
mooMath-Tuttle-OSX:279lect15-1 smtuttle$ printf "%7s \n" m
moo
Math-Tuttle-OSX:279lect15-1 smtuttle$ df
Filesystem 512-blocks Used Available Capacity Mounted on
/dev/disk0s2 975093952 256328176 718253776 27% /
devfs 378 378 0 100% /dev
map -hosts 0 0 0 100% /net
map auto_home 0 0 0 100% /home
localhost:/BjdpUwC5t2FfSjtgqRjmMR 975093952 975093952 0 100% /Volumes/MobileBackups
Math-Tuttle-OSX:279lect15-1 smtuttle$ ssh st10@nrs-projects.humboldt.edu
st10@nrs-projects.humboldt.edu's password:
Last login: Tue Dec 4 09:06:42 2012 from nrs-labs.humboldt.edu
[st10@nrs-projects ~]$ df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
28324436 20156748 6711408 76% /
/dev/sda1 101086 26917 68950 29% /boot
tmpfs 1029324 0 1029324 0% /dev/shm
[st10@nrs-projects ~]$ exit
logout
Connection to nrs-projects.humboldt.edu closed.
Math-Tuttle-OSX:279lect15-1 smtuttle$ cd ..
Math-Tuttle-OSX:279lectures smtuttle$ cd ..
Math-Tuttle-OSX:f12cs279 smtuttle$ du -a 279lectures
16 279lectures/.DS_Store
24 279lectures/279lect01-2/279lect01-2-history-local.txt
8 279lectures/279lect01-2/279lect01-2-projected.txt
8 279lectures/279lect01-2/279lect01-2-projected.txt~
8 279lectures/279lect01-2/279lect01-2-projected_txt.html
24 279lectures/279lect01-2/279lect01-2-q1-to-convert.doc
112 279lectures/279lect01-2/279lect01-2-q1-to-convert.odt
24 279lectures/279lect01-2/279lect01-2-q2-to-convert.doc
104 279lectures/279lect01-2/279lect01-2-q2-to-convert.odt
224 279lectures/279lect01-2/279lect01-2.odt
400 279lectures/279lect01-2/279lect01-2.pdf
8 279lectures/279lect01-2/edited-279lect01-2-history-local.txt
24 279lectures/279lect01-2/edited-279lect01-2-history-local.txt~
0 279lectures/279lect01-2/play
968 279lectures/279lect01-2
... chopped really long output...
400 279lectures/279lect15-1/279lect15-1.pdf
8 279lectures/279lect15-1/log_Tue.txt
1072 279lectures/279lect15-1
31456 279lectures
Math-Tuttle-OSX:f12cs279 smtuttle$ du -s 279lectures
31456 279lectures
Math-Tuttle-OSX:f12cs279 smtuttle$ du -a 279lectures | sort -n0 279lectures/279lect01-2/play
0 279lectures/279lect02-1/play
0 279lectures/279lect02-2/play
0 279lectures/279lect03-2/279lect03-2-history.txt~
0 279lectures/279lect03-2/play
0 279lectures/279lect04-1/play
...chopped really long output...
1616 279lectures/279lect08-2
1792 279lectures/279lect14-1
1856 279lectures/279lect07-1
1864 279lectures/279lect04-1
31456 279lectures
Math-Tuttle-OSX:f12cs279 smtuttle$ du -a 279lectures | sort -nr
31456 279lectures
1864 279lectures/279lect04-1
1856 279lectures/279lect07-1
1792 279lectures/279lect14-1
1616 279lectures/279lect08-2
1536 279lectures/279lect11-2
1488 279lectures/279lect05-2
1464 279lectures/279lect10-2
1448 279lectures/279lect12-2
1440 279lectures/279lect10-1
... chopped really long output ...
0 279lectures/279lect04-2/play
0 279lectures/279lect04-1/play
0 279lectures/279lect03-2/play
0 279lectures/279lect03-2/279lect03-2-history.txt~
0 279lectures/279lect02-2/play
0 279lectures/279lect02-1/play
0 279lectures/279lect01-2/play
Math-Tuttle-OSX:f12cs279 smtuttle$ du -a 279lectures | sort -nr | head
31456 279lectures
1864 279lectures/279lect04-1
1856 279lectures/279lect07-1
1792 279lectures/279lect14-1
1616 279lectures/279lect08-2
1536 279lectures/279lect11-2
1488 279lectures/279lect05-2
1464 279lectures/279lect10-2
1448 279lectures/279lect12-2
1440 279lectures/279lect10-1
Math-Tuttle-OSX:f12cs279 smtuttle$ uname
Darwin
Math-Tuttle-OSX:f12cs279 smtuttle$ uname -a
Darwin Math-Tuttle-OSX.local 11.4.2 Darwin Kernel Version 11.4.2: Thu Aug 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64 x86_64
Math-Tuttle-OSX:f12cs279 smtuttle$ !ssh
ssh st10@nrs-projects.humboldt.edu
st10@nrs-projects.humboldt.edu's password:
Last login: Tue Dec 4 15:44:30 2012 from 137.150.7.22
[st10@nrs-projects ~]$ uname
Linux
[st10@nrs-projects ~]$ uname -a
Linux nrs-projects.humboldt.edu 2.6.18-308.1.1.el5 #1 SMP Fri Feb 17 16:51:01 EST 2012 x86_64 x86_64 x86_64 GNU/Linux
[st10@nrs-projects ~]$ sudo find / -name sudoers
[sudo] password for st10:
/etc/sudoers
[st10@nrs-projects ~]$ ls -l /etc/sudoers
-r--r----- 1 root root 3192 Jul 20 2010 /etc/sudoers
[st10@nrs-projects ~]$ cat /etc/sudoers
cat: /etc/sudoers: Permission denied
[st10@nrs-projects ~]$ man su
[st10@nrs-projects ~]$ sudo useradd 279dummy
[sudo] password for st10:
sudo: useradd: command not found
[st10@nrs-projects ~]$ sudo /usr/sbin/useradd 279dummy
[st10@nrs-projects ~]$ ls ~279dummy
ls: /home/279dummy: Permission denied
[st10@nrs-projects ~]$ sudo ls ~279dummy
[st10@nrs-projects ~]$ sudo ls -l ~279dummy
total 0
[st10@nrs-projects ~]$ sudo ls -ld ~279dummy
drwx------ 3 279dummy 279dummy 4096 Dec 4 16:09 /home/279dummy
[st10@nrs-projects ~]$ sudo /usr/bin/passwd 279dummy
Changing password for user 279dummy.
New UNIX password:
BAD PASSWORD: it is too short
Retype new UNIX password:
Sorry, passwords do not match.
New UNIX password:
BAD PASSWORD: it is too short
Retype new UNIX password:
passwd: all authentication tokens updated successfully.
[st10@nrs-projects ~]$ exit
logout
Connection to nrs-projects.humboldt.edu closed.
Math-Tuttle-OSX:f12cs279 smtuttle$ ssh 279dummy@nrs-projects.humboldt.edu
279dummy@nrs-projects.humboldt.edu's password:
[279dummy@nrs-projects ~]$ ls
[279dummy@nrs-projects ~]$ ls -a
. .. .bash_logout .bash_profile .bashrc .emacs .mozilla
[279dummy@nrs-projects ~]$ group
-bash: group: command not found
[279dummy@nrs-projects ~]$ cd /etc
[279dummy@nrs-projects etc]$ cat group | grep 279dummy
279dummy:x:641: