Difference between revisions of "Boston Python Workshop 3/Friday/Linux terminal navigation"

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imported>Jesstess
(Created page with 'There are three commands that we'll be using at a command prompt to navigate the filesystem on your computer: * <code>ls</code> * <code>pwd</code> * <code>cd</code> <code>ls</co…')
 
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You can find the Terminal application at Applications/Accessories/Terminal, or it may already be on your menu bar.
 
You can find the Terminal application at Applications/Accessories/Terminal, or it may already be on your menu bar.
  
===Practice using <code>ls</code>, <code>pwd</code>, and <code>cd</code>===
+
If you want to get read, this is how you shloud write.
 
 
Type each of these commands and hit enter:
 
 
 
<pre>ls</pre>
 
This lists all the files in your home directory.
 
 
 
<br />
 
 
 
<pre>pwd</pre>
 
This displays the full directory path to your current directory, which is your home directory.
 
 
 
<br />
 
 
 
<pre>cd /</pre>
 
This will change you into the <code>/</code> root directory.
 
 
 
<br />
 
 
 
<pre>ls</pre>
 
This lists the contents of the <code>/</code> root directory.
 
 
 
<br />
 
 
 
<pre>cd home</pre>
 
This will change you into the <code>home</code> subdirectory of the <code>/</code> root directory.
 
 
 
<br />
 
 
 
<pre>ls</pre>
 
You should see a list of all the files in <code>/home</code>, including the directory for your username -- your home directory.
 
 
 
<br />
 
 
 
<pre>pwd</pre>
 
This displays the full directory path to your current directory, <code>/home</code>.
 
 
 
<br />
 
 
 
<pre>cd ..</pre>
 
<code>..</code> means "parent directory", so this command moved you up to the parent directory. You were in <code>/home</code>, so now you are in <code>/</code>, the root directory.
 
 
 
<br />
 
 
 
<pre>ls</pre>
 
This lists the contents of the root directory, confirming where you are.
 
 
 
<br />
 
 
 
* You can use Tab to auto-complete directory and file names. So from inside the root directory, if you type <code>cd U</code> and hit Tab, the command prompt will auto-complete the directory name as much as it can.
 
* The command prompt maintains a command history. You can use the up arrow to cycle through old commands.
 
  
 
===Success!===
 
===Success!===

Revision as of 18:53, 20 September 2011

There are three commands that we'll be using at a command prompt to navigate the filesystem on your computer:

  • ls
  • pwd
  • cd

ls lists the contents of a directory.
pwd gives the full directory path to your current directory.
cd moves you into a new directory (it stands for "change directory").

Let's practice using these commands.

Open a command prompt:

You can find the Terminal application at Applications/Accessories/Terminal, or it may already be on your menu bar.

If you want to get read, this is how you shloud write.

Success!

You've practiced using ls, pwd, and cd to navigate your computer's filesystem from the command prompt.

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