[1987d72] | 1 | <sect1 id="ch06-creatingdirs">
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| 2 | <title>Creating directories</title>
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| 3 | <?dbhtml filename="creatingdirs.html" dir="chapter06"?>
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| 4 |
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[2c094d6] | 5 | <para>Let's now create some structure in our LFS file system. Let's create
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[44c2fd8] | 6 | a directory tree. Issuing the following commands will create a more or less
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| 7 | standard tree:</para>
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[1987d72] | 8 |
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[cfdcaef7] | 9 | <para><screen><userinput>mkdir -p /{bin,boot,dev/{pts,shm},etc/opt,home,lib,mnt,proc}
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[4a7a683] | 10 | mkdir -p /{root,sbin,tmp,usr/local,var,opt}
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[1987d72] | 11 | for dirname in /usr /usr/local
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| 12 | do
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| 13 | mkdir $dirname/{bin,etc,include,lib,sbin,share,src}
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| 14 | ln -s share/{man,doc,info} $dirname
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| 15 | mkdir $dirname/share/{dict,doc,info,locale,man}
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| 16 | mkdir $dirname/share/{nls,misc,terminfo,zoneinfo}
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| 17 | mkdir $dirname/share/man/man{1,2,3,4,5,6,7,8}
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[4a7a683] | 18 | done
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| 19 | mkdir /var/{lock,log,mail,run,spool}
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| 20 | mkdir -p /var/{tmp,opt,cache,lib/misc,local}
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| 21 | mkdir /opt/{bin,doc,include,info}
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[a27ec48] | 22 | mkdir -p /opt/{lib,man/man{1,2,3,4,5,6,7,8}}</userinput></screen></para>
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[1987d72] | 23 |
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[2c094d6] | 24 | <para>Directories are, by default, created with permission mode 755, but this
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[44c2fd8] | 25 | isn't desirable for all directories. We will make two changes: one to the home
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| 26 | directory of root, and another to the directories for temporary files.</para>
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[1987d72] | 27 |
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[4a7a683] | 28 | <para><screen><userinput>chmod 0750 /root
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[a358a47] | 29 | chmod 1777 /tmp /var/tmp</userinput></screen></para>
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[1987d72] | 30 |
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[da849d1] | 31 | <para>The first mode change ensures that not just anybody can enter the
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[44c2fd8] | 32 | <filename class="directory">/root</filename> directory -- the same
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[2c094d6] | 33 | as a normal user would do with his or her home directory.
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[44c2fd8] | 34 | The second mode change makes sure that any user can write to the
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| 35 | <filename class="directory">/tmp</filename> and
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| 36 | <filename class="directory">/var/tmp</filename> directories, but
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[2c094d6] | 37 | cannot remove other users' files from them. The latter is prohibited
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[44c2fd8] | 38 | by the so-called "sticky bit" -- the highest bit in the 1777 bit mask.</para>
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| 39 |
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[1987d72] | 40 | <sect2>
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[44c2fd8] | 41 | <title>FHS compliance note</title>
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| 42 |
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| 43 | <para>We have based our directory tree on the FHS standard (available at
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| 44 | <ulink url="http://www.pathname.com/fhs/"/>). Besides the above created
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| 45 | tree this standard stipulates the existence of
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| 46 | <filename class="directory">/usr/local/games</filename> and
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| 47 | <filename class="directory">/usr/share/games</filename>, but we don't
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| 48 | much like these for a base system. However, feel free to make your system
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| 49 | FHS-compliant. As to the structure of the
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[2c094d6] | 50 | <filename class="directory">/usr/local/share</filename> subdirectory, the FHS
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[44c2fd8] | 51 | isn't precise, so we created here the directories that we think are needed.</para>
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[1987d72] | 52 |
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| 53 | </sect2>
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| 54 |
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| 55 | </sect1>
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| 56 |
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