Chmod - Revision history

Admin: /* Reset web directory and file permissions */

2017-04-19T18:51:09Z

Reset web directory and file permissions

← Older revision		Revision as of 18:51, 19 April 2017
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	For directories (current directory and below):<br />		For directories (current directory and below):<br />
	<code>find `pwd` -type d -exec chmod ~~775~~ {} \;</code>		<code>find `pwd` -type d -exec chmod 755 {} \;</code>

	For files (current directory and below):<br />		For files (current directory and below):<br />
	<code>find `pwd` -type f -exec chmod 644 {} \;</code>		<code>find `pwd` -type f -exec chmod 644 {} \;</code>


	== References ==		== References ==

Admin at 18:22, 19 April 2017

2017-04-19T18:22:00Z

← Older revision		Revision as of 18:22, 19 April 2017
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	<code>chmod ug=rw logo.jpg</code> Assign the owner and group read and write permissions.		<code>chmod ug=rw logo.jpg</code> Assign the owner and group read and write permissions.


			== Reset web directory and file permissions ==

			To recursively reset permissions for directories and files:

			For directories (current directory and below):<br />
			<code>find `pwd` -type d -exec chmod 775 {} \;</code>

			For files (current directory and below):<br />
			<code>find `pwd` -type f -exec chmod 644 {} \;</code>


	== References ==		== References ==

Admin at 02:27, 24 December 2016

2016-12-24T02:27:11Z

← Older revision		Revision as of 02:27, 24 December 2016
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	Each place of the three digits represents the owner, the group, and other.		Each place of the three digits represents the owner, the group, and other.

			<pre>
	0 - No permission		0 - No permission
	* 1 - execute		* 1 - execute
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	6 - read and write		6 - read and write
	7 - read, write, and execute		7 - read, write, and execute
			</pre>

	You add the starred items above to get the higher numbers.		You add the starred items above to get the higher numbers.
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	=== Who: ===		=== Who: ===

			<pre>
	Letter Meaning		Letter Meaning
	u The user who owns the file (this means “you.”)		u The user who owns the file (this means “you.”)
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	o The other users		o The other users
	a all of the above (an abbreviation for ugo)		a all of the above (an abbreviation for ugo)
			</pre>

	=== Permissions: ===		=== Permissions: ===

	r Permission to read the file.		<pre>
			r Permission to read the file.
	w Permission to write (or delete) the file.		w Permission to write (or delete) the file.
	x Permission to execute the file, or, in the case of a directory, search it.		x Permission to execute the file, or, in the case of a directory, search it.
			</pre>

	=== Adding and Removing Permissions===		=== Adding and Removing Permissions===
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	You can add and subtract permissions using + and -		You can add and subtract permissions using + and -

			<pre>
	Operator Meaning		Operator Meaning
	= assign permissions		= assign permissions
	+ add permissions		+ add permissions
	- remove permissions		- remove permissions
			</pre>

	'''Examples:'''		'''Examples:'''

Admin at 02:25, 24 December 2016

2016-12-24T02:25:16Z

@@ Line 32: / Line 32: @@
 - (rwx------) The directory owner has full access. Nobody else has any rights. This setting is useful for directories that only the owner may use and must be kept private from others.
 == Symbolic (letters) ==
@@ Line 64: / Line 85: @@
 You can add and subtract permissions using + and -
 '''Examples:'''
@@ Line 72: / Line 98: @@
 <code>chmod a+wx calcs.txt</code> For all (owner, group, and other) add '''write''' and '''execute''' permissions.
 == References ==

Admin at 02:33, 21 December 2016

2016-12-21T02:33:12Z

← Older revision		Revision as of 02:33, 21 December 2016
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	<code>chmod og=rw index.html</code> Sets the group and other permissions at the same time to Read and Write.		<code>chmod og=rw index.html</code> Sets the group and other permissions at the same time to Read and Write.

	~~'''~~Who:~~'''~~		=== Who: ===

	Letter Meaning		Letter Meaning
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	a all of the above (an abbreviation for ugo)		a all of the above (an abbreviation for ugo)

	~~'''~~Permissions:~~'''~~		=== Permissions: ===

	r Permission to read the file.		r Permission to read the file.
	w Permission to write (or delete) the file.		w Permission to write (or delete) the file.
	x Permission to execute the file, or, in the case of a directory, search it.		x Permission to execute the file, or, in the case of a directory, search it.

			=== Adding and Removing Permissions===

			You can add and subtract permissions using + and -

			'''Examples:'''

			<code>chmod u+x</code> For '''you''', add '''execute''' permission.

			<code>chmod go-w support</code> For '''group''' and '''other''', subtract (remove) '''write''' permission.

			<code>chmod a+wx calcs.txt</code> For all (owner, group, and other) add '''write''' and '''execute''' permissions.

	== References ==		== References ==

Admin at 02:23, 21 December 2016

2016-12-21T02:23:30Z

← Older revision		Revision as of 02:23, 21 December 2016
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	chmod ''who''=''permissions'' ''filename''		chmod ''who''=''permissions'' ''filename''

			Examples:

			<code>chmod o=r mybackup.tgz</code> Change the permissions for '''Other''' to '''Read-only'''

			<code>chmod g= jdoe.txt</code> Remove group permissions (same as <code>chmod g=--- jdow.txt</code> )

			You can also adjust multiple permissions at once:

			<code>chmod og=rw index.html</code> Sets the group and other permissions at the same time to Read and Write.

	'''Who:'''		'''Who:'''

Admin at 02:15, 21 December 2016

2016-12-21T02:15:56Z

@@ Line 1: / Line 1: @@
 chmod manages file and directory permissions
 '''Example:'''
@@ Line 5: / Line 9: @@
 <code>chmod 644 myfile.txt</code>
-== Common Settings ==
+=== Common Settings ===
 '''Files:'''
@@ Line 28: / Line 32: @@
 - (rwx------) The directory owner has full access. Nobody else has any rights. This setting is useful for directories that only the owner may use and must be kept private from others.
 == References ==
@@ Line 33: / Line 55: @@
 <ol>
     <li>[http://man.he.net/?topic=chmod&section=all chmod man page]</li>
 </ol>

Admin at 02:05, 21 December 2016

2016-12-21T02:05:53Z

← Older revision		Revision as of 02:05, 21 December 2016
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	700 - (rwx------) The directory owner has full access. Nobody else has any rights. This setting is useful for directories that only the owner may use and must be kept private from others.		700 - (rwx------) The directory owner has full access. Nobody else has any rights. This setting is useful for directories that only the owner may use and must be kept private from others.

			== References ==

			<ol>
			<li>[http://man.he.net/?topic=chmod&section=all chmod man page]</li>
			</ol>

Admin at 02:03, 21 December 2016

2016-12-21T02:03:53Z

← Older revision		Revision as of 02:03, 21 December 2016
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	'''Files:'''		'''Files:'''

	777 - (rwxrwxrwx) No restrictions on permissions. Anybody may do anything. Generally not a desirable setting.		777 - (rwxrwxrwx) No restrictions on permissions. Anybody may do anything. Generally not a desirable setting.

	755 - (rwxr-xr-x) The file's owner may read, write, and execute the file. All others may read and execute the file. This setting is common for programs that are used by all users.		755 - (rwxr-xr-x) The file's owner may read, write, and execute the file. All others may read and execute the file. This setting is common for programs that are used by all users.

	700 - (rwx------) The file's owner may read, write, and execute the file. Nobody else has any rights. This setting is useful for programs that only the owner may use and must be kept private from others.		700 - (rwx------) The file's owner may read, write, and execute the file. Nobody else has any rights. This setting is useful for programs that only the owner may use and must be kept private from others.

	666 - (rw-rw-rw-) All users may read and write the file.		666 - (rw-rw-rw-) All users may read and write the file.

	644 - (rw-r--r--) The owner may read and write a file, while all others may only read the file. A common setting for data files that everybody may read, but only the owner may change.		644 - (rw-r--r--) The owner may read and write a file, while all others may only read the file. A common setting for data files that everybody may read, but only the owner may change.

	600 - (rw-------) The owner may read and write a file. All others have no rights. A common setting for data files that the owner wants to keep private.		600 - (rw-------) The owner may read and write a file. All others have no rights. A common setting for data files that the owner wants to keep private.

	'''Directories:'''		'''Directories:'''

	777 - (rwxrwxrwx) No restrictions on permissions. Anybody may list files, create new files in the directory and delete files in the directory. Generally not a good setting.		777 - (rwxrwxrwx) No restrictions on permissions. Anybody may list files, create new files in the directory and delete files in the directory. Generally not a good setting.

	755 - (rwxr-xr-x) The directory owner has full access. All others may list the directory, but cannot create files nor delete them. This setting is common for directories that you wish to share with other users.		755 - (rwxr-xr-x) The directory owner has full access. All others may list the directory, but cannot create files nor delete them. This setting is common for directories that you wish to share with other users.

	700 - (rwx------) The directory owner has full access. Nobody else has any rights. This setting is useful for directories that only the owner may use and must be kept private from others.		700 - (rwx------) The directory owner has full access. Nobody else has any rights. This setting is useful for directories that only the owner may use and must be kept private from others.

Admin: Created page with "chmod manages file and directory permissions '''Example:''' `chmod 644 myfile.txt` == Common Settings == '''Files:''' 777 - (rwxrwxrwx) No restrictions..."

2016-12-21T02:03:03Z

Created page with "chmod manages file and directory permissions '''Example:''' <code>chmod 644 myfile.txt</code> == Common Settings == '''Files:''' 777 - (rwxrwxrwx) No restrictions..."

New page

chmod manages file and directory permissions

'''Example:'''

<code>chmod 644 myfile.txt</code>

== Common Settings ==

'''Files:'''

777 - (rwxrwxrwx) No restrictions on permissions. Anybody may do anything. Generally not a desirable setting.

755 - (rwxr-xr-x) The file's owner may read, write, and execute the file. All others may read and execute the file. This setting is common for programs that are used by all users.

700 - (rwx------) The file's owner may read, write, and execute the file. Nobody else has any rights. This setting is useful for programs that only the owner may use and must be kept private from others.

666 - (rw-rw-rw-) All users may read and write the file.

644 - (rw-r--r--) The owner may read and write a file, while all others may only read the file. A common setting for data files that everybody may read, but only the owner may change.

600 - (rw-------) The owner may read and write a file. All others have no rights. A common setting for data files that the owner wants to keep private.

'''Directories:'''

777 - (rwxrwxrwx) No restrictions on permissions. Anybody may list files, create new files in the directory and delete files in the directory. Generally not a good setting.

755 - (rwxr-xr-x) The directory owner has full access. All others may list the directory, but cannot create files nor delete them. This setting is common for directories that you wish to share with other users.

700 - (rwx------) The directory owner has full access. Nobody else has any rights. This setting is useful for directories that only the owner may use and must be kept private from others.