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77.
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Groups are logical expressions of organization. They tie users together and provide group-based, rather than user-based permissions. Common groups include <emphasis>admin</emphasis>, <emphasis>audio</emphasis>, <emphasis>mail</emphasis>.
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(no translation yet)
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Located in
../docs/basics/C/basics.xml:329(para)
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78.
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Permissions
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(no translation yet)
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Located in
docs/basics/C/basics.xml:339(title)
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79.
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In a multi-user environment, security of user and system data is important. Linux has three specific, or distinct, classes:
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(no translation yet)
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Located in
docs/basics/C/basics.xml:340(para)
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80.
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<emphasis role="strong">r</emphasis> - <emphasis>read</emphasis> permission which grants the ability to read a file.
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(no translation yet)
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Located in
docs/basics/C/basics.xml:346(para)
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81.
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<emphasis role="strong">w</emphasis> - <emphasis>write</emphasis> permission which grants the ability to modify a file.
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(no translation yet)
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Located in
docs/basics/C/basics.xml:352(para)
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82.
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<emphasis role="strong">x</emphasis> - <emphasis>execute</emphasis> permission which grants the ability to execute a file.
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(no translation yet)
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Located in
docs/basics/C/basics.xml:358(para)
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83.
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The list above shows the symbolic notation of each permission in <emphasis role="strong">bold</emphasis> text. Each permission also has an octal notation:
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(no translation yet)
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Located in
docs/basics/C/basics.xml:364(para)
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84.
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<emphasis role="strong">r</emphasis> - <emphasis>4</emphasis>
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(no translation yet)
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Located in
docs/basics/C/basics.xml:370(para)
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85.
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<emphasis role="strong">w</emphasis> - <emphasis>2</emphasis>
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(no translation yet)
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Located in
docs/basics/C/basics.xml:375(para)
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86.
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<emphasis role="strong">x</emphasis> - <emphasis>1</emphasis>
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(no translation yet)
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Located in
docs/basics/C/basics.xml:380(para)
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