Jan Kończak

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<style>.wU{font-weight:bold;color:#00ff00}.wH{color:#cdcd00}.wD{color:#0000ee}
.wP{margin:-2px; border: 2px solid red}
.wS{border-radius: 8px; margin:-2px; border: 2px solid red}
.wN{border-radius: 8px; margin:-2px; border: 2px solid #aaa; background:
linear-gradient(to left top, transparent 47%, #aaa 47%, #aaa 53%, transparent 53%)}
.wG{border-radius: 8px; margin:-2px; border: 2px solid #aaa; background:
linear-gradient(to right top, transparent 47%, #aaa 47%, #aaa 53%, transparent 53%)}
p{margin-top:0}pre{margin-bottom:0}
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<pre>
<span class="wU">roo</span>@<span class="wH">host</span><span class="wD"> ~ $</span> whoami
<span class="wS">roo</span>
<span class="wU">roo</span>@<span class="wH">host</span><span class="wD"> ~ $</span> groups
bipedal jumping
<span class="wU">roo</span>@<span class="wH">host</span><span class="wD"> ~ $</span> ls -l
total 4
d<span class="wP">rwx</span>r-x--x 5 <span class="wS">roo</span> jumping 160 Mar 16 20:04 myDir
-<span class="wP">rw-</span>---r-- 1 <span class="wS">roo</span> jumping 249 Mar 16 20:03 someFile
<span class="wU">roo</span>@<span class="wH">host</span><span class="wD"> ~ $</span> stat myDir
  File: myDir
  Size: 160     Blocks: 0         IO Block: 4096   directory
Device: 0,30    Inode: 90         Links: 5
Access: (0<span class="wP">7</span>51/d<span class="wP">rwx</span>r-x--x)  Uid: (1234/  <span class="wS">roo</span>)  Gid: (123/ jumping)
<span class="wU">roo</span>@<span class="wH">host</span><span class="wD"> ~ $</span> stat someFile
  File: someFile
  Size: 249     Blocks: 8         IO Block: 4096   regular file
Device: 0,30    Inode: 91         Links: 1
Access: (0<span class="wP">6</span>04/-<span class="wP">rw-</span>---r--)  Uid: (1234/  <span class="wS">roo</span>)  Gid: (123/ jumping)
</pre>
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Użytkownik ''roo'' jest właścicielem pliku, więc patrzy **tylko** na pierwszy zestaw uprawnień.

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<pre>
<span class="wU">tigger</span>@<span class="wH">host</span><span class="wD"> ~ $</span> whoami
<span class="wN">tigger</span>
<span class="wU">tigger</span>@<span class="wH">host</span><span class="wD"> ~ $</span> groups
<span class="wS">jumping</span> happy
<span class="wU">tigger</span>@<span class="wH">host</span><span class="wD"> ~ $</span> ls -l
total 4
drwx<span class="wP">r-x</span>--x 5 <span class="wN">roo</span> <span class="wS">jumping</span> 160 Mar 16 20:04 myDir
-rw-<span class="wP">---</span>r-- 1 <span class="wN">roo</span> <span class="wS">jumping</span> 249 Mar 16 20:03 someFile
<span class="wU">tigger</span>@<span class="wH">host</span><span class="wD"> ~ $</span> stat myDir
  File: myDir
  Size: 160     Blocks: 0         IO Block: 4096   directory
Device: 0,30    Inode: 90         Links: 5
Access: (07<span class="wP">5</span>1/drwx<span class="wP">r-x</span>--x)  Uid: (1234/  <span class="wN">roo</span>)  Gid: (123/ <span class="wS">jumping</span>)
<span class="wU">tigger</span>@<span class="wH">host</span><span class="wD"> ~ $</span> stat someFile
  File: someFile
  Size: 249     Blocks: 8         IO Block: 4096   regular file
Device: 0,30    Inode: 91         Links: 1
Access: (06<span class="wP">0</span>4/-rw-<span class="wP">---</span>r--)  Uid: (1234/  <span class="wN">roo</span>)  Gid: (123/ <span class="wS">jumping</span>)
</pre>
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Użytkownik ''tigger'' **nie** jest właścicielem pliku, ale jest w grupie ''jumping'' do której należy plik, więc patrzy **tylko** na środkowy zestaw uprawnień.

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<pre>
<span class="wU">eeyore</span>@<span class="wH">host</span><span class="wD"> ~ $</span> whoami
<span class="wN">eeyore</span>
<span class="wU">eeyore</span>@<span class="wH">host</span><span class="wD"> ~ $</span> groups
<span class="wG">quadruped</span> <span class="wG">glum</span>
<span class="wU">eeyore</span>@<span class="wH">host</span><span class="wD"> ~ $</span> ls -l
total 4
drwxr-x<span class="wP">--x</span> 5 <span class="wN">roo</span> <span class="wG">jumping</span> 160 Mar 16 20:04 myDir
-rw----<span class="wP">r--</span> 1 <span class="wN">roo</span> <span class="wG">jumping</span> 249 Mar 16 20:03 someFile
<span class="wU">eeyore</span>@<span class="wH">host</span><span class="wD"> ~ $</span> stat myDir
  File: myDir
  Size: 160     Blocks: 0         IO Block: 4096   directory
Device: 0,30    Inode: 90         Links: 5
Access: (075<span class="wP">1</span>/drwxr-x<span class="wP">--x</span>)  Uid: (1234/  <span class="wN">roo</span>)  Gid: (123/ <span class="wG">jumping</span>)
<span class="wU">eeyore</span>@<span class="wH">host</span><span class="wD"> ~ $</span> stat someFile
  File: someFile
  Size: 249     Blocks: 8         IO Block: 4096   regular file
Device: 0,30    Inode: 91         Links: 1
Access: (060<span class="wP">4</span>/-rw----<span class="wP">r--</span>)  Uid: (1234/  <span class="wN">roo</span>)  Gid: (123/ <span class="wG">jumping</span>)
</pre>
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Użytkownik ''eeyore'' **nie** jest właścicielem pliku i **nie** jest w grupie ''jumping'' do której należy plik, więc patrzy **tylko** na ostatni zestaw uprawnień.
Jan Kończak

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