File Permissions - Revision history

Coconut: /* lil_cain and file permissions */

2008-11-04T16:55:00Z

lil_cain and file permissions

← Older revision		Revision as of 16:55, 4 November 2008
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	<-->		<-->
	Actually, what I was looking for is stat. It's a far better tool for individual files.		Actually, what I was looking for is stat. It's a far better tool for individual files.

			<--->
			Orly? I just remember "thanks".

	[[Category:Helpdesk]]		[[Category:Helpdesk]]

Lil cain: /* lil_cain and file permissions */

2008-06-30T13:09:14Z

lil_cain and file permissions

← Older revision		Revision as of 13:09, 30 June 2008
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	ls is one of the most basic commands EVAR!!1!!!11 lil_cain U DESERVE NO R00T!1!!		ls is one of the most basic commands EVAR!!1!!!11 lil_cain U DESERVE NO R00T!1!!

			<-->
			Actually, what I was looking for is stat. It's a far better tool for individual files.

	[[Category:Helpdesk]]		[[Category:Helpdesk]]

Coconut: /* lil_cain and file permissions */

2008-01-11T22:27:03Z

lil_cain and file permissions

← Older revision		Revision as of 22:27, 11 January 2008
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	ls -al		ls -al

	~~This~~ is one of the most basic commands EVAR!!1!!!11 lil_cain U DESERVE NO R00T!1!!		ls is one of the most basic commands EVAR!!1!!!11 lil_cain U DESERVE NO R00T!1!!

	[[Category:Helpdesk]]		[[Category:Helpdesk]]

Coconut at 22:26, 11 January 2008

2008-01-11T22:26:34Z

← Older revision		Revision as of 22:26, 11 January 2008
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	You can get more detailed information on chmod by typing man chmod at the prompt and of course, contact [[Helpdesk]] if you have any problems.		You can get more detailed information on chmod by typing man chmod at the prompt and of course, contact [[Helpdesk]] if you have any problems.

			== lil_cain and file permissions ==

			One day in #lobby, lil_cain, at this point an elected systems administrator, decided he was having trouble with Linux and asked the kind people of RedBrick for help. His question was something along the lines of "how do I check the permissions for a file in a directory?"

			Now, as everyone knows, you can check the permissions of all files in a directory using either

			ls -l

			or

			ls -al

			This is one of the most basic commands EVAR!!1!!!11 lil_cain U DESERVE NO R00T!1!!

	[[Category:Helpdesk]]		[[Category:Helpdesk]]

Undone at 04:27, 25 March 2007

2007-03-25T04:27:46Z

← Older revision		Revision as of 04:27, 25 March 2007
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	You can get more detailed information on chmod by typing man chmod at the prompt and of course, contact [[Helpdesk]] if you have any problems.		You can get more detailed information on chmod by typing man chmod at the prompt and of course, contact [[Helpdesk]] if you have any problems.

			[[Category:Helpdesk]]

Undone: /* Who can I give these permissions to? */

2006-12-16T01:51:47Z

Who can I give these permissions to?

← Older revision		Revision as of 01:51, 16 December 2006
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	* Others		* Others

	Basically, this means everyone else~~. e.g.~~ those outside of your group~~, or another~~ very important example is webpages~~. You~~ need to specify others to allow people to view your HTML files.		Basically, this means everyone else, eg - those outside of your group. Another very important example is webpages as you need to specify others to allow people to view your HTML files.

	* All		* All

Undone: /* What are file permissions? */

2006-12-16T01:49:51Z

What are file permissions?

← Older revision		Revision as of 01:49, 16 December 2006
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	== What are file permissions? ==		== What are file permissions? ==

	File permissions are important, they specify what you let people do to your files. There are generally three types of file permissions:		File permissions are rather important as they specify what you let people do to your files. There are generally three types of file permissions:

	* Read Permission		* Read Permission

Undone: /* How do I set permissions? */

2006-12-16T01:48:50Z

How do I set permissions?

← Older revision		Revision as of 01:48, 16 December 2006
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	-rwxr--r--		-rwxr--r--

	and so on.		and so on. These are the permissions that you've set. There are ten spaces there for characters if you notice. The first 'bit' as we call it, tells us if it's a directory. If there's a 'd' there, then it is a directory, otherwise, if there's a '-' there, then it's a file.

	These are the permissions that you've set. There are ten spaces there for characters if you notice. The first 'bit' as we call it, tells us if it's a directory. If there's a 'd' there, then it is a directory, otherwise, if there's a '-' there, then it's a file.

	Now, divide the remaining nine characters into three groups of three. The first group of three represent the permissions for 'user', the next three for 'group' and the last three for 'others'. The first 'bit' of any of these three groups represent whether that group has 'read' permission (a '-' means no). The next bit means 'write' permission, and the third bit means 'execute' permission.		Now, divide the remaining nine characters into three groups of three. The first group of three represent the permissions for 'user', the next three for 'group' and the last three for 'others'. The first 'bit' of any of these three groups represent whether that group has 'read' permission (a '-' means no). The next bit means 'write' permission, and the third bit means 'execute' permission.

Undone: /* How do I set permissions? */

2006-12-16T01:48:21Z

How do I set permissions?

← Older revision		Revision as of 01:48, 16 December 2006
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	Permission Binary Octal		Permission Binary Octal

	rwx 111 7		rwx 111 7
	rw- 110 6		rw- 110 6
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	--- 000 0		--- 000 0

	So all you have to do is stick the numbers together for the three groups, some examples would be		So all you have to do is stick the numbers together for the three groups, some examples would be rwxr-xr-x, which is rwx r-x r-x, or 111 101 101, or in octal, 755 which means that to set the permission for rxwr-xr-x, you type:

	rwxr-xr-x which is rwx r-x r-x or 111 101 101 or in octal, 755 which means that to set the permission for rxwr-xr-x, you type:

	chmod 755 filename		chmod 755 filename

Undone: /* What permissions should I use for webpages? */

2006-12-16T01:47:32Z

What permissions should I use for webpages?

← Older revision		Revision as of 01:47, 16 December 2006
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	For webpages, you should remember the following:		For webpages, you should remember the following:

	Your home directory (~) should be go+x or 711, so use the command chmod 711 ~ (return). Your public_html folder must also be go+x or 711, so again, use chmod 711 ~/public_html (return). All subfolders of your public_html to be used by your website must be go+x or 711 as well...		Your home directory (~) should be go+x or 711, so use the command chmod 711 ~ (return). Your public_html folder must also be go+x or 711, so again, use chmod 711 ~/public_html (return). All subfolders of your public_html to be used by your website must be go+x or 711 as well... See [[Webspace]] for more info on webpages on Redbrick.

	Finally, all files, eg HTML files, must be go+r or 644. You can use a recursive chmod to change all files in public_html or subdirectories of public_html to have permission 644, by using the command chmod 644 ~/public_html/*.		Finally, all files, eg HTML files, must be go+r or 644. You can use a recursive chmod to change all files in public_html or subdirectories of public_html to have permission 644, by using the command chmod 644 ~/public_html/*.

	You can get more detailed information on chmod by typing man chmod at the prompt and of course, contact [[Helpdesk]] if you have any problems.		You can get more detailed information on chmod by typing man chmod at the prompt and of course, contact [[Helpdesk]] if you have any problems.