Question

17

chmod: invalid mode: `+a'

rated 0 times [ 17] [ 0] / answers: 1 / hits: 29022 / 1 Year ago, fri, may 26, 2023, 7:13:37

System: ( lsb_release -a )

Distributor ID: Ubuntu

Description:    Ubuntu 10.04.4 LTS

Release:        10.04

Codename:       lucid

This is my command:

sudo chmod +a "www-data allow delete,write,append,file_inherit,directory_inherit" app/cache app/logs

Docs:

http://symfony.com/doc/current/book/installation.html#configuration-and-setup

Error:

chmod: invalid mode: `+a'

Try `chmod --help' for more information.

Why doesn't this work? Isn't the +a standard chmod?

UPDATE:

Looks like this is a OSX only mod:

http://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man1/chmod.1.html

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istmasted

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answered 1 Year ago montwim · Accepted Answer

"+a" is not a standard argument, no. Follow the next step in the linked documentation.

sudo setfacl -R -m u:www-data:rwx -m u:`whoami`:rwx app/cache app/logs

sudo setfacl -dR -m u:www-data:rwx -m u:`whoami`:rwx app/cache app/logs

Info on what the "+a" does for chmods that use it:

+a The +a mode parses a new ACL entry from the next argument on the commandline and inserts it
into the canonical location in the ACL. If the supplied entry refers to an identity already
listed, the two entries are combined.