Boston Python Workshop 8/Friday/Windows terminal navigation: Difference between revisions

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The filesystem on your computer is like a tree made up of folders (also called "directories") and files. The filesystem has a root directory called <tt>/</tt>, and everything on your computer lives in subdirectories of this root directory.
 
We often navigate the filesystem graphically by clicking on graphical folders. We can do the exact same navigation from the command lineterminal.
 
There are two commands that we'll be using atin a command promptterminal to navigate the filesystem on your computer:
* <code>dir</code>
* <code>cd</code>
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<b>Let's practice using these commands!</b>
 
===Open a command prompt:terminal===
 
* On Windows Vista or Windows 7: click on the Start menu (the Windows logo in the lower left of the screen), type <code>cmd</code> into the Search field directly above the Start menu button, and click on "cmd" in the search results above the Search field.
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===Tips===
 
* You can use Tab to auto-complete directory and file names. So from inside the root directory, if you type <code>cd Use</code> and hit Tab, the command promptterminal will auto-complete the directory name, and you can then hit enter to change into the <code>C:\Users</code> directory.
* The command promptterminal maintains a command history. You can use the up arrow to cycle through old commands.
* Note that the text that makes up the commandterminal prompt changes as you move around directories. The commandterminal prompt will always give the full directory path to your current directory.
 
===Check your understanding===
 
Answer these questions. Experiment at the commandterminal lineprompt if you need to! If you aren't sure about an answer, ask a helper.
 
# What directory are you in after starting a new command lineterminal prompt?
# After starting a new command lineterminal prompt, how would you get to the root directory?
# How do you check what files and directories are in your current working directory?
# If you are in directory <tt>C:\Users</tt>, and you want to get to <tt>C:\Users\jesstess\projects</tt>, how would you do that?
# What are 2 ways to avoid typing out a full navigation command? (hint: one requires that you've run the command before)
# What is the difference between a commandterminal prompt and a Python prompt?
 
===Success!===
 
You've practiced using <code>dir</code> and <code>cd</code> to navigate your computer's filesystem from the commandterminal prompt.
 
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