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add content in ls and cd

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git-svn-id: svn+ssh://atelier.inf.usi.ch/home/bevilj/group-1@78 a672b425-5310-4d7a-af5c-997e18724b81
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marina 2018-11-09 18:42:56 +00:00
parent d308afa623
commit cdf5bdf43e
2 changed files with 86 additions and 29 deletions
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32
site/pages/cmd/basic/cd.html
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@ -3,17 +3,27 @@ layout: page
category_title: Basic commands
category-page: basic
tags: directory change navigate
author: Joey Bevilacqua
author: Marinelli Alessandro
title: CD
previous-page: pages/cmd/basic/ls.html
next-page: pages/cmd/basic/ls.html
---
<p>The <code>cd</code> command is used to change directories</p>
<ul>
<li>Item 1</li>
<li>Item 2</li>
<li>Hello</li>
</ul>
{% highlight bash linenos %}
cp -R a b/c/a
{% endhighlight %}
<p>The <code>cd</code> command is used to change the working directory<br>
The name stands for <i>Change Directory</i>. </p>
<h2>Syntax</h2>
<p>The default cd command syntax is:
<pre>cd [flags] [path]</pre>
Where [flags] are the cd flags, read below for more info,and [path] is the
path (absolute or relative), of the directory which we want to make as working directoty</p>
<h2>Usage</h2> <br>
<h3> Change the working directory</h3>
<p> Let's see how to use the command <code> cd </code> in order to change the working directory</p>
<pre>
Device-Name:~ YourName$ cd Desktop/Multimedia.Folder/
Device-Name:Multimedia.Folder YourName$
</pre>
<p> As you can see, we changed the working directory from ~ (which stands for HOME),
to <code>Multimedia.Folder</code>. Now our Shell will work on the directory <code>Multimedia.Folder</code>
until a new <code>cd</code> will occour. </p>
<p> <b> Notice: </b> If you want to move to a directory which is not contained in <thead>
current working directory, you <u>MUST</u> use the absolute path.</p>

83
site/pages/cmd/basic/ls.html
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@ -3,24 +3,71 @@ layout: page
category_title: Basic commands
category-page: basic
tags: directory list
author: Claudio Maggioni
author: Marinelli Alessandro
title: LS
next-page: pages/cmd/basic/cd.html
previous-page: pages/cmd/basic/cd.html
---
<p>The ls command is used to list files</p>
<ul>
<li>Item 1</li>
<li>Item 2</li>
<li>Hello</li>
</ul>
{% highlight ruby linenos %}
def show
puts "Outputting a very lo-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-ong lo-o-o-o-o-o-o-o-o-o-o-o-o-o-o-o-ong line"
@widget = Widget(params[:id])
respond_to do |format|
format.html # show.html.erb
format.json { render json: @widget }
end
end
{% endhighlight %}
<p>The <code>ls</code> command is used to list a directory content or a file.<br>
The name stands for <i>LiSt</i>.
<h2>Syntax</h2>
<p>The default ls command syntax is:
<pre>ls [flags] [path]</pre>
Where [flags] are the ls flags, read below for more info,and [path] is the
(optional) path (absolute or relative).If no path is provided the current
directory is listed.</p>
<h2>Usage</h2> <br>
<h3> List the elements on the current working directory </h3>
<p> Let's see how to show a list containing the elements included in the
current working directory</p>
<pre>
Device-name:Multimedia.Folder YourName$ ls
Other Multimedia This is a file,not a folder.jpg
Photos Videos
</pre>
<p> As you can see, typing <code> ls</code> in the Unix Shell, will give as output
the list of elements contained in the actual working directory,which,in our case, is a folder named <u><code>Multimedia.folder</code></u>.<br>
Elements listed can be files (look for exemple at the element<u><code> This is a file,not a folder.jpg</code></u>),
such as other directories
(look for example at the folder <u> <code> Photos</code></u> ).
<h3> List the elements contained in a directory </h3>
<pre>
Device-name:Multimedia.Folder YourName$ ls Photos
01.jpg 02.jpg
03.jpg 04.jpg
</pre>
<p> As you can see, now the Unix Shell is showing us the elements contained
in the folder <u> <code> Photos</code></u>. </p>
<p> <storng> Notice: </strong> <u> <code> Photos</code></u> is a valid path
because it is actually the relative path of a folder contained in the current working directory.<br>
You have to put the absolute path if you want to list elements which are not contained in the
current working directory </p>
<h3> Show hidden files </h3>
<p> You can include hidden files (those which name starts with ".") in the displayed list using the <u><code>-a</code></u> flag </p>
<pre>
Device-name:Multimedia.Folder YourName$ ls -a Photos
. 01.png
.. 02.png
.DS_Store 03.png
.secret.png 04.jpg
</pre>
<p>As you can see, now the SHELL shows more files for the same directory</p>
<h3> Show list in long format </h3>
<pre>
Device-Name:Photos YourName$ ls -l
total 10816
-rw-r--r--@ 1 YourName YourGroup 3143706 4 Ott 13:28 01.png
-rw-r--r--@ 1 YourName YourGroup 2269193 28 Ott 18:58 02.png
-rw-r--r--@ 1 YourName YourGroup 37900 28 Ott 22:07 03.png
-rw-r--r--@ 1 YourName YourGroup 75924 20 Ott 16:01 04.jpg
</pre>
<p> If the <u><code>-l</code></u> flag is given, the following information will be displayed for
each file: file mode, number of links, owner name, group name, number of
bytes in the file, abbreviated month, day-of-month file was last modi-
fied, hour file last modified, minute file last modified, and the path-
name. In addition, for each directory whose contents are displayed, the
total number of 512-byte blocks used by the files in the directory is
displayed on a line by itself, immediately before the information for the
files in the directory. </p>