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Mason Faucett 2012 Unix/Linux Fundamentals Opus
MAJOR: Computer Science
Introduction
Hello all, my name is Mason Faucett and i'm here to learn a lot more about UNIX/LINUX than i know already. With this online course and the book i have hopefully i will achieve that goal. A little bit about me is that i'm 18, and i love computers, or anything electronic really. I'm a fast learner so my Boces instructor said. I've taken Computer Essentials and Network Fundamentals in Boces and I am Network+ and A+ certified for life. If you have any questions about computers or what they can do ask me i'll gladly try my hardest to find an answer. I'm not mean at all and i'm a pretty easy going person. I am shy so if you wanna talk to me in public you might have to start up the conversation.
Part 1
Entries
Entry 1: January 24, 2012
Today I experienced some trouble with the Class Chat. The ctrl + a release both tap d wasn't working on my original chat so i made a new one. With the new chat up I first tested that i could detatch from the chat with ctrl + a release both tap d and it worked so i was happy. But sadly, when i reattched to the chat i realized i couldn't type anything. So after again making a new one that works correctly now i still can't get rid of the one that i can't type /quit in. Hopefully the answer will dawn upon me sooner than later but having to take the long way into talking to my class mates is well worth it for their help.
Entry 2: January 25, 2012
Today Wedge helped me learn a new command “the 'kill' command”. A little bit about the “kill” command: kill: usage: kill [-s sigspec | -n signum | -sigspec] pid | jobspec … or kill -l [sigspec]. What the kill command does is that it your having trouble with a bash (like i was with the screen) you issue this command to terminate the process. The reason why it was related to the course is because that I was having trouble with my screen that i couldn't do anything in. After wedge issued the kill command on the process I didn't have to use screen -r 23478 to re-attatch myself to the classroom chat screen that worked. Maybe the kill command can help you guys out if you have a troublesome bash.
Entry 3: February 5, 2012
This is my attempt to make an ASCII tree of my home directory.
Entry 4: Feburary 29, 2012
Lately the labs and case studies have been easier to understand. I don't really know why but I think it's because the way I have been thinking lately (more out of the box) has really helped in figuring out the “puzzles” in the labs. I don't really know much of languages but I have been learning on how to write in pseudocode (←-sp?) and if it doesn't make any sense to anybody let me know and i will try and make it more clear to them.
Keywords
unix Keywords
Keyword "cd"
Definition
My definition of the command “cd” is that it is an abbreviation of change directory. With just the command “cd” it will, by default, change the directory to the home directory. If the command “cd src” is used then the directory will be changed (like in the demonstration). With the command “cd ..” the directory will go to the one previous the one it is currently in. (as shown in the demonstration again). Also the command cd can be used to change to directories in directories such as my example, “cd src/src/unix” which will take my directory and change it to “lab46:~/src/src/unix$”
Demonstration
lab46:~$ cd src lab46:~/src$ cd .. lab46:~$ cd src/src/unix lab46:~/src/src/unix$
Keyword "pwd"
Definition
The command “pwd” means that it will show the path that the current working directory is in. The directory path to the home directory, for me, is “/home/mfaucet2”. As the command “cd” is used the pwd output is either longer or shorter.
Demonstration
Demonstration of the chosen keyword.
lab46:~$ pwd /home/mfaucet2 lab46:~$ cd src lab46:~/src$ pwd /home/mfaucet2/src lab46:~/src$ cd /home/mfaucet2 lab46:~$ pwd /home/mfaucet2 lab46:~$ cd .. lab46:/home$ pwd /home lab46:/home$ cd .. lab46:/$ pwd / lab46:/$
Keyword "mv"
Definition
The “mv” command is just a sorter way to say move. The “mv” command has two functions; One function is to move the command (obviously). The second function is to rename the file/directory/archive/what-ever. A way that I found to use the “mv” command is the following: mv “filename” -t (I think “-t” is “to”) “new filename or new directory location” and voila the file is moved.
Demonstration
Demonstration of the chosen keyword.
lab46:~$ ls Maildir badname file.txt.gz shell archive1.tar.gz badname.tar.gz lab2 src archive2.zip courses.html lyrics.mp3 src.bak archives **example.txt** public_html the answer.txt lab46:~$ mv example.txt example1.txt lab46:~$ ls Maildir badname file.txt.gz shell archive1.tar.gz badname.tar.gz lab2 src archive2.zip courses.html lyrics.mp3 src.bak archives **example1.txt** public_html the answer.txt lab46:~$ mv example1.txt -t src lab46:~$ ls Maildir archives courses.html lyrics.mp3 src archive1.tar.gz badname file.txt.gz public_html src.bak archive2.zip badname.tar.gz lab2 shell the answer.txt lab46:~$ cd src lab46:~/src$ ls **example1.txt** src lab46:~/src$
Keyword "touch"
Definition
“touch” isn't touching a file or directory or archive. The command “touch” is how files are created. Using the “touch” command can be used to create 1 - x amount of files all in the same command.
Demonstration
Demonstration of the chosen keyword.
lab46:~/messaround$ touch example.txt lab46:~/messaround$ ls example.txt lab46:~/messaround$ touch example1.txt example2.txt example3.txt lab46:~/messaround$ ls example.txt example1.txt example2.txt example3.txt lab46:~/messaround$
Keyword "motd"
Definition
“motd” is the message of the day. It is displayed after the user logs in or after using the command “motd”.
Demonstration
lab46:~$ motd __ _ _ _ __ . . . . . . . . . . . . . . . . . . . . . . . . . | | __ _| |__ / | |_/ / . Basic System Usage: Type 'usage' at prompt . | |__/ _` | '_ \\_ _/ _ \ . Events and News: Type 'news' at prompt . |_____\__,_|_.__/ |_|\___/ . Broken E-mail? Type 'fixmail' at prompt . --------------------------- . Check Lab46 Mail: Type 'alpine' at prompt . c o r n i n g - c c . e d u . . . . . . . . . . . . . . . . . . . . . . . . . Lab46 is the Computer & Information Science Department's Student Development Server for Computer-related coursework, projects, and exploration. For more information, please check out: .. . . . . . . . . . .. . Lab46 Web Page: http://lab46.corning-cc.edu/ . . Lab46 Help Form: http://lab46.corning-cc.edu/help_request . . Help E-mail: haas@corning-cc.edu or wedge@lab46.corning-cc.edu . .. . . . . . . . . . .. lab46:~$
Keyword "ctrl a + d"
Definition
Another way to logout, or exiting a screen.
Demonstration
Demonstration of the chosen keyword.
lab46:~$ screen -r [detached from 23478.pts-5.lab46] lab46:~$
lab46:~$ logout
The above is what it shown in a split second after pressing “ctrl a + d”
Keyword "screen"
Definition
A simple way to enter a irssi chat after setting one up.
Demonstration
Demonstration of the chosen keyword.
lab46:~$ screen -ls There is a screen on: 23478.pts-5.lab46 (01/24/2012 12:43:26 PM) (Detached) 1 Socket in /var/run/screen/S-mfaucet2. lab46:~$ screen -r 23478 [detached from 23478.pts-5.lab46] lab46:~$ screen -ls There is a screen on: 23478.pts-5.lab46 (01/24/2012 12:43:26 PM) (Detached) 1 Socket in /var/run/screen/S-mfaucet2. lab46:~$ screen -d There is a screen on: 23478.pts-5.lab46 (01/24/2012 12:43:25 PM) (Detached) There is no screen to be detached. lab46:~$
Keyword "alpine"
Definition
My definition of “alpine” is the Unix mailing system.
Demonstration
ALPINE 2.00 MAIN MENU Folder: INBOX 14 Messages + ? HELP - Get help using Alpine C COMPOSE MESSAGE - Compose and send a message I MESSAGE INDEX - View messages in current folder L FOLDER LIST - Select a folder to view A ADDRESS BOOK - Update address book S SETUP - Configure Alpine Options Q QUIT - Leave the Alpine program Copyright 2006-2008 University of Washington [Folder "INBOX" opened with 14 messages] ? Help P PrevCmd R RelNotes O OTHER CMDS > [ListFldrs] N NextCmd K KBLock
unix Objective
Objective
To learn more about how Unix functions and learn the commands to help make everyday work easier.
Definition
The easiest way to find out the functions of Unix is to play around with them. Some help with work that needs to be done and other help make the experience more enjoyable. All around Unix just helps makes doing things easier.
Method
In order to help me achieve higher learning in Unix i will have to do the assignments for the Unix Fundamentals class. In order to do these I will have to be fully engaged in critical thinking and completely indulged in the work that needs to be done.
Measurement
After following my method of achieving higher learning in Unix I have now understood the most recently due assignments after learning how Unix commands work. To achieve this I did what my method said and have handed in my assignments on time.
Analysis
The keywords in the above part of the opus are commands that I have become more familiar with and are more comfortable using those commands without making a huge mess in my virtual machine, like I was when the class first started out.
Experiments
Experiment 1
Question
Can I remove more than 1 file while using the “rm” command?
Resources
None used
Hypothesis
I believe that I can remove more than 1 file at a time using the “rm” command because with the “touch” command I can create more files with 1 command.
Experiment
I have already created files using the touch command and I will use the rm command to see if i can remove them all at once.
Data
lab46:~/messaround$ ls example.txt example1.txt example2.txt example3.txt lab46:~/messaround$ rm example.txt example1.txt example2.txt example3.txt rm: remove regular empty file `example.txt'? yes rm: remove regular empty file `example1.txt'? yes rm: remove regular empty file `example2.txt'? yes rm: remove regular empty file `example3.txt'? yes lab46:~/messaround$ ls lab46:~/messaround$
Analysis
My hypothesis was correct and through typing the file names after the first I was prompted to delete them all, but it was still prompting me one at a time for each file.
Conclusions
I have discovered that the touch command along with the rm command have some similarities with each other in that they can both manipulate multiple files at once.
Experiment 2
Question
Am I able to remove a directory while it still has files in it?
Resources
None used
Hypothesis
I believe I will be able to remove the directory that has files in it because it would be like removing a folder in a GUI environment, where if it has files in it the user would just be prompted if he/she would want to remove the folder or in a CLI enviroment a directory.
Experiment
I have a mess around directory that has nothing important in it and have four files that are blank. After using the rmdir command on /messaround hopefully the directory will be removed.
Data
lab46:~/messaround$ ls example.txt example1.txt example2.txt example3.txt lab46:~/messaround$ cd .. lab46:~$ rmdir messaround rmdir: failed to remove `messaround': Directory not empty lab46:~$
Analysis
My hypothesis was incorrect. The directories in a cli are different than folders in a gui environment; tho they have the same purpose.
Conclusions
I have found that in order to remove a directory, whatever is in it must also be removed in order to remove the directory.
Experiment 3
Question
Can I attach to an active screen?
Resources
None used
Hypothesis
I don't believe I can attach to an active screen, because I'm technically already on it. i would have to detach myself then reattach myself to the screen.
Experiment
I'm going to exit out of the screen by exiting my virtual machine and seeing if the screen is attached. If it is I can further go the experiment by using screen -r to reattach myself to the screen, if not I will have to use screen -d then screen -r to reattach myself to the screen.
Data
lab46:~$ screen -ls There is a screen on: 23478.pts-5.lab46 (01/24/2012 12:43:26 PM) 1 Socket in /var/run/screen/S-mfaucet2.
lab46:~$ screen -r There is a screen on: 23478.pts-5.lab46 (01/24/2012 12:43:26 PM) (Attached) There is no screen to be resumed. lab46:~$ screen -d [23478.pts-5.lab46 detached.] lab46:~$ screen -ls There is a screen on: 23478.pts-5.lab46 (01/24/2012 12:43:26 PM) (Detached) 1 Socket in /var/run/screen/S-mfaucet2. lab46:~$ screen -r [detached from 23478.pts-5.lab46] lab46:~$
Analysis
Based on the data collected: My hypothesis was correct as shown above. I could not attach to a attached screen because it was already on. After detaching the screen i was then able to attach myself to the detached screen.
Conclusions
I have learned that screens are like different sections of the server. If they are accessed when somebody is already on their screen they will either have to: make another screen, detach from the active screen and reattach themselves to it, or use screen -x to override the attached screen error.
Part 2
Entries
Entry 5: March 2nd, 2012
Today I tried my first time doing scripting. I liked doing the scripting a lot and I believe it strengthened my decision in learning more in the programming field. At first i did have trouble starting with the logic and syntax that needed to be used to have the scripting work, but once I got used to it it was fairly easy.
Entry 6: March 9th, 2012
Today I learned how to make a bot. I really liked the bot in several irc's that i've been in before by their interaction knowing it was just me talking to a computer. After figuring out how to download the phenny file to PuTTY and not my computer I felt comfortable using some scripting to give the bot more functionality.
Entry 7: March 16th, 2012
Today I attempted to use the command “find” I had a lot of trouble using this command because i forgot about the STDERR (2>) and the path “/dev/null”. after wedge mentioned to me that it should help get rid of the errors from the output of “find” the command was very easy to use. This command along with grep work very nicely in finding files and words in those files.
Entry 8: March 23rd, 2012
Today in Unix Fundamentals I learned how to construct a website from using the PuTTY public.html directory. This interested me a lot in web design because I've always liked tinkering with websites even in my years at the Boces camput in Hornell. Maybe is programming isn't the thing for me I may take a direction in web design.
Keywords
unix Keywords
Keyword "df"
Definition
df locates all of the running directories used by a users system and each directories disk space usage.
Demonstration
lab46:~$ df Filesystem Size Used Avail Use% Mounted on /dev/xvda1 4.0G 2.5G 1.4G 65% / tmpfs 766M 0 766M 0% /lib/init/rw udev 738M 36K 738M 1% /dev tmpfs 766M 4.0K 766M 1% /dev/shm /dev/xvda2 248M 13M 223M 6% /tmp nfs:/home 2.8T 1.4T 1.4T 49% /home nfs:/lib/mail 2.8T 1.4T 1.4T 49% /var/mail lab46:~$
Keyword "who"
Definition
The who command shows who is currently logged on and if their messaging is on(+) or off(-).
Demonstration
Demonstration of the chosen keyword.
lab46:~$ who NAME LINE TIME IDLE PID COMMENT jjohns43 + pts/24 2012-01-23 12:18 08:45 701 (cpe-74-65-82-173:S.0) jjohns43 + pts/26 2012-02-29 14:40 old 21533 (cpe-74-65-82-173:S.1) thakes3 + pts/32 2012-03-16 15:39 03:44 6464 (:pts/8:S.0) wedge - pts/72 2012-04-01 09:42 00:32 10102 (telstar.lair.lan) tedmist1 + pts/74 2012-04-01 12:53 00:34 13120 (cpe-67-252-119-108.stny.res.rr.com) mfaucet2 + pts/87 2012-04-01 14:36 . 14073 (189.sub-166-248-14.myvzw.com) jjohns43 + pts/82 2012-02-27 11:03 08:45 26118 (cpe-74-65-82-173:S.0) jjohns43 + pts/93 2012-02-27 11:13 08:45 26196 (cpe-74-65-82-173:S.0) lab46:~$
Keyword "tty"
Definition
The command “tty” prints the file name of the terminal connected to the standard input
Demonstration
lab46:~$ tty /dev/pts/87 lab46:~$
Keyword "mesg"
Definition
The “mesg” command without y or n displays whether messaging to the user is available. With mesg y mesg is turned on. With mesg n mesg is turned off.
Demonstration
lab46:~$ mesg is y lab46:~$ mesg n lab46:~$ mesg is n lab46:~$ mesg y lab46:~$ mesg is y lab46:~$
Keyword ctrl + C
Definition
Stops a command from running.
Demonstration
lab46:~$ cat ^C lab46:~$
Keyword "/dev/null"
Definition
A directory where anything unneeded can be piped to.
Demonstration
lab46:/$ find / -name "hello" 2> /dev/null /home/mfaucet2/devel/hello /home/bkenne11/hello /home/bkenne11/devel/hello /var/public/unix/patterns/hello /var/public/unix/scripting/hello /var/public/cs265/hello /var/public/cs265/hello/hello /usr/share/doc/libtcltk-ruby1.9.1/examples/demos-en/hello /usr/share/doc/libtcltk-ruby1.9.1/examples/demos-jp/hello /usr/share/doc/tk8.4/examples/hello lab46:/$
Keyword "gcc"
Definition
gcc is a command that compiles code in C.
Demonstration
lab46:~/devel$ gcc -o test test.c lab46:~/devel$ ls test test.c lab46:~/devel$
Keyword "chmod
Definition
The command “chmod” changes the permissions of a file or directory. This command is needed to make a script usable.
Demonstration
lab46:~/scripts$ ls guess.sh lab46:~/scripts$ ./guess.sh -bash: ./guess.sh: Permission denied lab46:~/scripts$ chmod -c 755 guess.sh mode of `guess.sh' changed to 0755 (rwxr-xr-x) lab46:~/scripts$ ./guess.sh hello lab46:~/scripts$
unix Objective
Objective
To learn more about how Unix functions and learn the commands to help make everyday work easier.
Definition
The easiest way to find out the functions of Unix is to play around with them. Some help with work that needs to be done and other help make the experience more enjoyable. All around Unix just helps makes doing things easier.
Method
In order to help me achieve higher learning in Unix i will have to do the assignments for the Unix Fundamentals class. In order to do these I will have to be fully engaged in critical thinking and completely indulged in the work that needs to be done.
Measurement
After following my method of achieving higher learning in Unix I have now understood the most recently due assignments after learning how Unix commands work. To achieve this I did what my method said and have handed in my assignments on time.
Analysis
The keywords in the above part of the opus are commands that I have become more familiar with and are more comfortable using those commands without making a huge mess in my virtual machine, like I was when the class first started out.
Experiments
Experiment 4
Question
Can I run more then 1 command at a time?
Resources
None
Hypothesis
I believe I should be able to run more than one command through the use of “;”
Experiment
I am going to show what is in the current home directory, make a file, show the file made in the home directory, then remove the directory all at the same time, without using a script.
Data
lab46:~$ ls;touch file;ls;rm file;ls Maildir devel messaround phenny public_html scripts compat labwork multifile phenny.tar.bz2 restart.sh src Maildir devel labwork multifile phenny.tar.bz2 restart.sh src compat file messaround phenny public_html scripts rm: remove regular empty file `file'? yes Maildir devel messaround phenny public_html scripts compat labwork multifile phenny.tar.bz2 restart.sh src lab46:~$
Analysis
My hypothesis was correct and my hypothesis was applicable. There isn't more than I originally thought.
Conclusions
I discovered that if a user wants to run more than one command at a time, the use of “;” is needed to accomplish such task.
Experiment 5
Question
Can I access any other users home directory? And if not can I change those permissions?
Resources
None
Hypothesis
I believe I won't be able to access any other users home directory because I am not the system administrator or the creator of that directory. Files that I don't have access to I won't have the permission to change the permissions.
Experiment
I am going to use a random student's directory, besides my own, and see if i can access it through using the “cd” command. If I can not I will try to change that students permissions to 755 using “chmod”
Data
lab46:/home$ cd mmatt -bash: cd: mmatt: Permission denied lab46:/home$ chmod -c 755 mmatt chmod: changing permissions of `mmatt': Operation not permitted lab46:/home$
Analysis
My hypothesis was correct and applicable.
Conclusions
What I found out from the experiment is that because I do not have rights to open the directory I don't have rights to change my rights/permissions that doesn't belong to me using chmod.
Retest 2
Perform the following steps:
State Experiment
Whose existing experiment are you going to retest? Provide the URL, note the author, and restate their question.
Resources
Evaluate their resources and commentary. Answer the following questions:
- Do you feel the given resources are adequate in providing sufficient background information?
- Are there additional resources you've found that you can add to the resources list?
- Does the original experimenter appear to have obtained a necessary fundamental understanding of the concepts leading up to their stated experiment?
- If you find a deviation in opinion, state why you think this might exist.
Hypothesis
State their experiment's hypothesis. Answer the following questions:
- Do you feel their hypothesis is adequate in capturing the essence of what they're trying to discover?
- What improvements could you make to their hypothesis, if any?
Experiment
Follow the steps given to recreate the original experiment. Answer the following questions:
- Are the instructions correct in successfully achieving the results?
- Is there room for improvement in the experiment instructions/description? What suggestions would you make?
- Would you make any alterations to the structure of the experiment to yield better results? What, and why?
Data
Publish the data you have gained from your performing of the experiment here.
Analysis
Answer the following:
- Does the data seem in-line with the published data from the original author?
- Can you explain any deviations?
- How about any sources of error?
- Is the stated hypothesis adequate?
Conclusions
Answer the following:
- What conclusions can you make based on performing the experiment?
- Do you feel the experiment was adequate in obtaining a further understanding of a concept?
- Does the original author appear to have gotten some value out of performing the experiment?
- Any suggestions or observations that could improve this particular process (in general, or specifically you, or specifically for the original author).
Part 3
Entries
Entry 9: April Day, 2012
This is a sample format for a dated entry. Please substitute the actual date for “Month Day, Year”, and duplicate the level 4 heading to make additional entries.
As an aid, feel free to use the following questions to help you generate content for your entries:
- What action or concept of significance, as related to the course, did you experience on this date?
- Why was this significant?
- What concepts are you dealing with that may not make perfect sense?
- What challenges are you facing with respect to the course?
Remember that 4 is just the minimum number of entries. Feel free to have more.
Entry 10: April Day, 2012
This is a sample format for a dated entry. Please substitute the actual date for “Month Day, Year”, and duplicate the level 4 heading to make additional entries.
As an aid, feel free to use the following questions to help you generate content for your entries:
- What action or concept of significance, as related to the course, did you experience on this date?
- Why was this significant?
- What concepts are you dealing with that may not make perfect sense?
- What challenges are you facing with respect to the course?
Remember that 4 is just the minimum number of entries. Feel free to have more.
Entry 11: April Day, 2012
This is a sample format for a dated entry. Please substitute the actual date for “Month Day, Year”, and duplicate the level 4 heading to make additional entries.
As an aid, feel free to use the following questions to help you generate content for your entries:
- What action or concept of significance, as related to the course, did you experience on this date?
- Why was this significant?
- What concepts are you dealing with that may not make perfect sense?
- What challenges are you facing with respect to the course?
Remember that 4 is just the minimum number of entries. Feel free to have more.
Entry 12: April Day, 2012
This is a sample format for a dated entry. Please substitute the actual date for “Month Day, Year”, and duplicate the level 4 heading to make additional entries.
As an aid, feel free to use the following questions to help you generate content for your entries:
- What action or concept of significance, as related to the course, did you experience on this date?
- Why was this significant?
- What concepts are you dealing with that may not make perfect sense?
- What challenges are you facing with respect to the course?
Remember that 4 is just the minimum number of entries. Feel free to have more.
unix Keywords
unix Keyword 17
Identification of chosen keyword (unless you update the section heading above).
Definition
Definition (in your own words) of the chosen keyword.
Demonstration
Demonstration of the chosen keyword.
If you wish to aid your definition with a code sample, you can do so by using a wiki code block, an example follows:
/* * Sample code block */ #include <stdio.h> int main() { return(0); }
Alternatively (or additionally), if you want to demonstrate something on the command-line, you can do so as follows:
lab46:~$ cd src lab46:~/src$ gcc -o hello hello.c lab46:~/src$ ./hello Hello, World! lab46:~/src$
unix Keyword 18
Identification of chosen keyword (unless you update the section heading above).
Definition
Definition (in your own words) of the chosen keyword.
Demonstration
Demonstration of the chosen keyword.
If you wish to aid your definition with a code sample, you can do so by using a wiki code block, an example follows:
/* * Sample code block */ #include <stdio.h> int main() { return(0); }
Alternatively (or additionally), if you want to demonstrate something on the command-line, you can do so as follows:
lab46:~$ cd src lab46:~/src$ gcc -o hello hello.c lab46:~/src$ ./hello Hello, World! lab46:~/src$
unix Keyword 19
Identification of chosen keyword (unless you update the section heading above).
Definition
Definition (in your own words) of the chosen keyword.
Demonstration
Demonstration of the chosen keyword.
If you wish to aid your definition with a code sample, you can do so by using a wiki code block, an example follows:
/* * Sample code block */ #include <stdio.h> int main() { return(0); }
Alternatively (or additionally), if you want to demonstrate something on the command-line, you can do so as follows:
lab46:~$ cd src lab46:~/src$ gcc -o hello hello.c lab46:~/src$ ./hello Hello, World! lab46:~/src$
unix Keyword 20
Identification of chosen keyword (unless you update the section heading above).
Definition
Definition (in your own words) of the chosen keyword.
Demonstration
Demonstration of the chosen keyword.
If you wish to aid your definition with a code sample, you can do so by using a wiki code block, an example follows:
/* * Sample code block */ #include <stdio.h> int main() { return(0); }
Alternatively (or additionally), if you want to demonstrate something on the command-line, you can do so as follows:
lab46:~$ cd src lab46:~/src$ gcc -o hello hello.c lab46:~/src$ ./hello Hello, World! lab46:~/src$
unix Keyword 21
Identification of chosen keyword (unless you update the section heading above).
Definition
Definition (in your own words) of the chosen keyword.
Demonstration
Demonstration of the chosen keyword.
If you wish to aid your definition with a code sample, you can do so by using a wiki code block, an example follows:
/* * Sample code block */ #include <stdio.h> int main() { return(0); }
Alternatively (or additionally), if you want to demonstrate something on the command-line, you can do so as follows:
lab46:~$ cd src lab46:~/src$ gcc -o hello hello.c lab46:~/src$ ./hello Hello, World! lab46:~/src$
unix Keyword 22
Identification of chosen keyword (unless you update the section heading above).
Definition
Definition (in your own words) of the chosen keyword.
Demonstration
Demonstration of the chosen keyword.
If you wish to aid your definition with a code sample, you can do so by using a wiki code block, an example follows:
/* * Sample code block */ #include <stdio.h> int main() { return(0); }
Alternatively (or additionally), if you want to demonstrate something on the command-line, you can do so as follows:
lab46:~$ cd src lab46:~/src$ gcc -o hello hello.c lab46:~/src$ ./hello Hello, World! lab46:~/src$
unix Keyword 23
Identification of chosen keyword (unless you update the section heading above).
Definition
Definition (in your own words) of the chosen keyword.
Demonstration
Demonstration of the chosen keyword.
If you wish to aid your definition with a code sample, you can do so by using a wiki code block, an example follows:
/* * Sample code block */ #include <stdio.h> int main() { return(0); }
Alternatively (or additionally), if you want to demonstrate something on the command-line, you can do so as follows:
lab46:~$ cd src lab46:~/src$ gcc -o hello hello.c lab46:~/src$ ./hello Hello, World! lab46:~/src$
unix Keyword 24
Identification of chosen keyword (unless you update the section heading above).
Definition
Definition (in your own words) of the chosen keyword.
Demonstration
Demonstration of the chosen keyword.
If you wish to aid your definition with a code sample, you can do so by using a wiki code block, an example follows:
/* * Sample code block */ #include <stdio.h> int main() { return(0); }
Alternatively (or additionally), if you want to demonstrate something on the command-line, you can do so as follows:
lab46:~$ cd src lab46:~/src$ gcc -o hello hello.c lab46:~/src$ ./hello Hello, World! lab46:~/src$
unix Objective
unix Objective
State the course objective
Definition
In your own words, define what that objective entails.
Method
State the method you will use for measuring successful academic/intellectual achievement of this objective.
Measurement
Follow your method and obtain a measurement. Document the results here.
Analysis
Reflect upon your results of the measurement to ascertain your achievement of the particular course objective.
- How did you do?
- Is there room for improvement?
- Could the measurement process be enhanced to be more effective?
- Do you think this enhancement would be efficient to employ?
- Could the course objective be altered to be more applicable? How would you alter it?
Experiments
Experiment 7
Question
What is the question you'd like to pose for experimentation? State it here.
Resources
Collect information and resources (such as URLs of web resources), and comment on knowledge obtained that you think will provide useful background information to aid in performing the experiment.
Hypothesis
Based on what you've read with respect to your original posed question, what do you think will be the result of your experiment (ie an educated guess based on the facts known). This is done before actually performing the experiment.
State your rationale.
Experiment
How are you going to test your hypothesis? What is the structure of your experiment?
Data
Perform your experiment, and collect/document the results here.
Analysis
Based on the data collected:
- Was your hypothesis correct?
- Was your hypothesis not applicable?
- Is there more going on than you originally thought? (shortcomings in hypothesis)
- What shortcomings might there be in your experiment?
- What shortcomings might there be in your data?
Conclusions
What can you ascertain based on the experiment performed and data collected? Document your findings here; make a statement as to any discoveries you've made.
Experiment 8
Question
What is the question you'd like to pose for experimentation? State it here.
Resources
Collect information and resources (such as URLs of web resources), and comment on knowledge obtained that you think will provide useful background information to aid in performing the experiment.
Hypothesis
Based on what you've read with respect to your original posed question, what do you think will be the result of your experiment (ie an educated guess based on the facts known). This is done before actually performing the experiment.
State your rationale.
Experiment
How are you going to test your hypothesis? What is the structure of your experiment?
Data
Perform your experiment, and collect/document the results here.
Analysis
Based on the data collected:
- Was your hypothesis correct?
- Was your hypothesis not applicable?
- Is there more going on than you originally thought? (shortcomings in hypothesis)
- What shortcomings might there be in your experiment?
- What shortcomings might there be in your data?
Conclusions
What can you ascertain based on the experiment performed and data collected? Document your findings here; make a statement as to any discoveries you've made.
Retest 3
Perform the following steps:
State Experiment
Whose existing experiment are you going to retest? Provide the URL, note the author, and restate their question.
Resources
Evaluate their resources and commentary. Answer the following questions:
- Do you feel the given resources are adequate in providing sufficient background information?
- Are there additional resources you've found that you can add to the resources list?
- Does the original experimenter appear to have obtained a necessary fundamental understanding of the concepts leading up to their stated experiment?
- If you find a deviation in opinion, state why you think this might exist.
Hypothesis
State their experiment's hypothesis. Answer the following questions:
- Do you feel their hypothesis is adequate in capturing the essence of what they're trying to discover?
- What improvements could you make to their hypothesis, if any?
Experiment
Follow the steps given to recreate the original experiment. Answer the following questions:
- Are the instructions correct in successfully achieving the results?
- Is there room for improvement in the experiment instructions/description? What suggestions would you make?
- Would you make any alterations to the structure of the experiment to yield better results? What, and why?
Data
Publish the data you have gained from your performing of the experiment here.
Analysis
Answer the following:
- Does the data seem in-line with the published data from the original author?
- Can you explain any deviations?
- How about any sources of error?
- Is the stated hypothesis adequate?
Conclusions
Answer the following:
- What conclusions can you make based on performing the experiment?
- Do you feel the experiment was adequate in obtaining a further understanding of a concept?
- Does the original author appear to have gotten some value out of performing the experiment?
- Any suggestions or observations that could improve this particular process (in general, or specifically you, or specifically for the original author).
