<li> Run <code>uname -a</code> on various Unix machines to see the
OS type and the kernel version. </li>
- <li> Nice read on the
- <a href="http://www.catb.org/~esr/writings/taoup/html/ch02s01.html">Origins and
- History of Unix</a>, 1969-1995. </li>
-
<li> Explore the <a
href="https://upload.wikimedia.org/wikipedia/commons/7/77/Unix_history-simple.svg">Unix
time line</a>. </li>
href="http://www.gnu.org/cgi-bin/license-quiz.cgi">Free Software
licensing quiz</a>. </li>
- <li> Read the <a
- href="https://www.newyorker.com/business/currency/the-gnu-manifesto-turns-thirty">
- notes on the 30th anniversary</a> of the GNU Manifesto. </li>
-
- <li> Read the <a
- href="http://www.catb.org/~esr/writings/unix-koans/end-user.html">
- Koan of Master Foo and the End User</a>. </li>
-
<li> On a Debian or Ubuntu system, run <code>aptitude search
python</code> to list all python-related Ubuntu packages. Run
<code>aptitude show python-biopython</code> to see the description
<table>
<tr>
- <td> </td>
- <td> <em>Directories</em> </td>
- <td> <em>Non-directories</em> </td>
+ <th> </th>
+ <th> Directories </th>
+ <th> Non-directories </th>
</tr> <tr>
- <td> <code> r </code> </td>
+ <th> <code>r</code> </th>
<td> The permission to list the directory contents. More precisely,
this bit grants the permission to call <code>opendir(3)</code>
fail for other reasons, though.
</tr> <tr>
- <td> <code> w </code> </td>
+ <th> <code>w</code> </th>
<td> The permission to add or remove directory entries. That is,
to create new files or to remove existing files. Note that write
permissions. </td>
</tr> <tr>
- <td> <code> x </code> </td>
+ <th> <code>x</code> </th>
<td> The permission to <em>search</em> the directory. Searching
a directory means to access its entries, either by retrieving
<table>
<tr>
- <td> octal value </td>
- <td> symbolic representation </td>
- <td> meaning </td>
+ <th> Octal Value </th>
+ <th> Symbolic Representation </th>
+ <th> Meaning </th>
</tr> <tr>
<td> 0 </td>
<td> <code>---</code> </td>
SECTION(«Further Reading»)
<ul>
+ <li> <a
+ href="http://www.catb.org/~esr/writings/taoup/html/ch02s01.html">Origins
+ and History of Unix, 1969-1995</a> by Eric Steven Raymond. </li>
+
+ <li> <a
+ href="https://www.newyorker.com/business/currency/the-gnu-manifesto-turns-thirty">
+ The GNU Manifesto Turns Thirty</a>, by Maria Bustillos. </li>
+
+ <li> <a
+ href="http://www.catb.org/~esr/writings/unix-koans/end-user.html">
+ The Koan of Master Foo and the End User</a>. </li>
+
<li> <a href="https://lwn.net/Articles/411845/">Ghosts of Unix Past:
a historical search for design patterns</a>, by Neil Brown. </li>