Permissions - Revision history

Pbug: changing permissions

2008-05-24T11:46:51Z

changing permissions

← Older revision		Revision as of 04:46, 24 May 2008
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	[[Image:permission.jpg]]		[[Image:permission.jpg]]


			== Intro ==

	Permissions, also called mode, are the part of an [[inode]] that grant access to a file to different users in a system. Technically the mode is a 16 bit unsigned integer and has bits set for different inode modes. Most of the time this mode is manipulated in octal or a visual representation as output by the '''[[ls]]''' program. The type of file is also included in this here is a few examples:		Permissions, also called mode, are the part of an [[inode]] that grant access to a file to different users in a system. Technically the mode is a 16 bit unsigned integer and has bits set for different inode modes. Most of the time this mode is manipulated in octal or a visual representation as output by the '''[[ls]]''' program. The type of file is also included in this here is a few examples:
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	A symlink that looks like this "lrwxr-xr-x" in ls looks like this in octal mode:		A symlink that looks like this "lrwxr-xr-x" in ls looks like this in octal mode:
	0120755		0120755

			== Changing permissions ==

			One can use [[chmod]] to change the mode of a file. You use [[chown]] and [[chgrp]] to change the owner and group of the file.


	=== Example permissions ===		== Example permissions ==

	To most this will look very strange as we usually use the last 4 octal digits, here is a rundown on a few of them:		To most this will look very strange as we usually use the last 4 octal digits, here is a rundown on a few of them:

Pbug: technically

2008-05-24T10:06:31Z

technically

← Older revision		Revision as of 03:06, 24 May 2008
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	[[Image:permission.jpg]]		[[Image:permission.jpg]]

	Permissions, also called mode, are the part of an [[inode]] that grant access to a file to different users in a system. ~~The~~ mode is a 16 bit unsigned integer and has bits set for different inode modes. Most of the time this mode is manipulated in octal or a visual representation as output by the [[ls]] program. The type of file is also included in this here is a few examples:		Permissions, also called mode, are the part of an [[inode]] that grant access to a file to different users in a system. Technically the mode is a 16 bit unsigned integer and has bits set for different inode modes. Most of the time this mode is manipulated in octal or a visual representation as output by the '''[[ls]]''' program. The type of file is also included in this here is a few examples:

	A directory that looks like this "drwxr-xr-x" in ls looks like this in the octal mode:		A directory that looks like this "drwxr-xr-x" in ls looks like this in the octal mode:

Pbug: example header

2008-05-24T09:51:42Z

example header

← Older revision		Revision as of 02:51, 24 May 2008
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	A symlink that looks like this "lrwxr-xr-x" in ls looks like this in octal mode:		A symlink that looks like this "lrwxr-xr-x" in ls looks like this in octal mode:
	0120755		0120755


			=== Example permissions ===

	To most this will look very strange as we usually use the last 4 octal digits, here is a rundown on a few of them:		To most this will look very strange as we usually use the last 4 octal digits, here is a rundown on a few of them:

Pbug: add image

2008-05-24T09:44:50Z

add image

← Older revision		Revision as of 02:44, 24 May 2008
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			[[Image:permission.jpg]]

	Permissions, also called mode, are the part of an [[inode]] that grant access to a file to different users in a system. The mode is a 16 bit unsigned integer and has bits set for different inode modes. Most of the time this mode is manipulated in octal or a visual representation as output by the [[ls]] program. The type of file is also included in this here is a few examples:		Permissions, also called mode, are the part of an [[inode]] that grant access to a file to different users in a system. The mode is a 16 bit unsigned integer and has bits set for different inode modes. Most of the time this mode is manipulated in octal or a visual representation as output by the [[ls]] program. The type of file is also included in this here is a few examples:

Hawson at 21:58, 21 November 2005

2005-11-21T21:58:59Z

← Older revision		Revision as of 14:58, 21 November 2005
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	For more information about the modes see ''/usr/include/sys/stat.h'' for the S_* defines.		For more information about the modes see ''/usr/include/sys/stat.h'' for the S_* defines.

			Also see the page covering [[groups]].

Pbug at 10:56, 28 October 2005

2005-10-28T10:56:59Z

← Older revision		Revision as of 03:56, 28 October 2005
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	0755 "-rwxr-xr-x" file with permissions read-write-execute for owner, read-execute for group, read-execute for others.		0755 "-rwxr-xr-x" file with permissions read-write-execute for owner, read-execute for group, read-execute for others.

			For more information about the modes see ''/usr/include/sys/stat.h'' for the S_* defines.

Pbug at 10:56, 28 October 2005

2005-10-28T10:56:12Z

New page

Permissions, also called mode, are the part of an [[inode]] that grant access to a file to different users in a system. The mode is a 16 bit unsigned integer and has bits set for different inode modes. Most of the time this mode is manipulated in octal or a visual representation as output by the [[ls]] program. The type of file is also included in this here is a few examples:

A directory that looks like this "drwxr-xr-x" in ls looks like this in the octal mode:
040755

A symlink that looks like this "lrwxr-xr-x" in ls looks like this in octal mode:
0120755

To most this will look very strange as we usually use the last 4 octal digits, here is a rundown on a few of them:

04555 "-r-sr-xr-x" setuid to owner file with permissions read-execute for owner, read-execute for group, read-execute for others.

02555 "-r-xr-sr-x" setgid to group file with permissions read-execute for owner, read-execute for group, read-execute for others.

0755 "-rwxr-xr-x" file with permissions read-write-execute for owner, read-execute for group, read-execute for others.