Talk:Basic Linux Command Line for Builders - Revision history

Luiz: /* Parts of a Command */

2010-04-30T21:23:13Z

Parts of a Command

Luiz: /* to begin the class */

2010-04-16T19:38:58Z

to begin the class

Luiz: /* to begin the class */

2010-04-16T19:31:56Z

to begin the class

Luiz: /* to begin the class */

2010-04-16T19:31:19Z

to begin the class

Luiz: /* moving around */

2010-04-16T19:27:00Z

moving around

Luiz: /* listing, linking, removing, tab completion: */

2010-04-16T19:23:23Z

listing, linking, removing, tab completion:

Luiz: /* Parts of a Command */

2010-04-16T19:16:44Z

Parts of a Command

Luiz: /* to begin the class */

2010-04-16T19:11:16Z

to begin the class

Luiz: /* more tab-completion, text editors, modules file: */

2010-04-09T22:34:06Z

more tab-completion, text editors, modules file:

Luiz: /* Parts of a Command */

2010-04-09T22:30:32Z

Parts of a Command

@@ Line 44: / Line 44: @@
 ===Parts of a Command===
 * Go over the parts of a command. ie: command -options target(s)
 * '''command''' - The name of the program being run is the start of a line and must be separated from the options and target by a space or spaces. These are almost

@@ Line 18: / Line 18: @@
 ==to begin the class==
 * Talk about why you would bother to use the  command line.
 ** Its much easier to do certain things, like move many files of the same type from different locations to a single folder (like pooling your photos or music, for example).
@@ Line 36: / Line 37: @@
 ** dollar sign means a user without special priveleges (# is administrative, or root)
 * Mention that the Linux command line is case sensitive.  Meaning A and a are not the same letters.
 ==Make a File==

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 * Talk about why you would bother to use the  command line.
 ** Its much easier to do certain things, like move many files of the same type from different locations to a single folder (like pooling your photos or music, for example).
-** Some things you can only do it the command line
+** Some things you can only do in the command line
 ** GUIs change, but the terminal commands usually stay the same for looooooong periods of time
 ** If you stick with learning about how computers work, its an easier and more powerful way to string commands together (like a big macro).

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 ==to begin the class==
 This assumes you're at a terminal in the Free Geek classroom.
 * log in, close the web browser.

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 *cd D<tab>      (becomes '''cd Desktop''')
 *ls
-*cd ..
+*cd .. (goes backwards, or up)
 *ls
 *cd /
@@ Line 81: / Line 81: @@
 *: You are now in the root of the filesystem.  Point out the directories and their uses.
 *Now you let the student know that most of their personal stuff with be in /home/username/some_directory and that talking about what lives in what directory is a subject of a later class.
-*cd ~
+*cd ~ (goes home)
 *ls
 ===Filesystem structure===
-The Linux filesystem is arranged as a bush starting from the roots and moving through branches to leaves. There are not letters representing hard drives.   The filesystem starts with "/" which is the root of the filesystem. Each branch has a name (and looks like a folder if using a GUI).  Some branches are hidden so that people feel less inclined to monkey with them (recall ls -a).  *Note* - Now is good time to explain the difference between the root user and the root of the filesystem.
+The Linux filesystem is arranged as a bush starting from the roots and moving through branches to leaves. There are not letters representing hard drives.   The filesystem starts with "/" which is the root of the filesystem (or roots of a bush). Each branch has a name (and looks like a folder if using a GUI).  Some branches are hidden so that people feel less inclined to monkey with them (recall ls -a) and to save time.  *Note* - Now is good time to explain the difference between the root user and the root of the filesystem.
 * '''absolute path''' - The location of a file or directory in the filesystem starting from root.  This always starts with a "/"
 ::/home/guest/files/example.txt
 * '''relative path''' - The location of a file or directory starting from you current working directory.  It never starts with a "/".  The following example assumes you are in /home/guest
 ::files/example.txt
 * Some stuff, especially stuff critical to the functioning of the operating system, will not let you read or write it (you don't have permission).

@@ Line 64: / Line 64: @@
 * <code>ls -l</code> (note that yourname points to Desktop)
-Note: periodically remind them about [[tab completion]] if they're not picking it up- it's a real arthritis-saver.
+Note: periodically remind them about [[tab completion]] if they're not picking it up- it's a real arthritis-saver.  It also means you do not have to memorize nearly as much.
 * <code>ls D<tab></code>
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 * <code>[[rm]] yourname</code>
 * <code>ls</code> (note that it removed yourname)
 == moving around ==

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 * Command, option, path (argument) ... can move options and paths around, but usually you will leave the path at the end in case you mistype it and need to correct it (up arrow).
 * Have student type ls /home.  This allows the student to see a practical use of ls (in this case its to see that names of the users on the computer).
 ==listing, linking, removing, tab completion:==

@@ Line 24: / Line 24: @@
 ::<small>''If you're on a [[FreekBox|FreekBox3]], you can open an xterminal by clicking on the button on the taskbar that looks like a monitor with a black screen.''  On an Ubuntu box, go to Applications>Accessories>Terminal</small>
 * Go over the parts of a command prompt. ie: user@system:location$
 * Mention that the Linux command line is case sensitive.  Meaning A and a are not the same letters.

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 ==more tab-completion, text editors, modules file:==
-now we're going to use a text editor, which is basically like a very simple word processor- no bold, underlining or italics- just plain old text. (in this example i use nano, since that's what most build instructors end up teaching.  mcedit is another text editor that would work)
+now we're going to use a text editor, which is basically like a very simple word processor- no bold, underlining or italics- just plain old text. (in this example i use nano, since that's what most build instructors end up teaching.  mcedit is another text editor that would work).  Tab completion works like "word-wheeling" in iTunes (most people have used iTunes).
 * nano /etc/m hit tab twice. (note all the possible completions)
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 * ctrl-x to exit.
 * nano modules (note that your changes were saved there)
 ==system configuration via tab-completion:==