>> Hi all, >> I have a problem changing permissions to some files using chmod and now I >> have a doubt about the owner and group of a file, >> I´ll try to explain. >> I have 2 users, user1 and user2, both belongs to group1. >> I have a file with this permissions: >> -rwxrwxrwx 1 user1 group1 file.txt >> with user2 I can read, write this file. but If I try to change the permissions with this: >> chmod 770 file.txt I get the error: >> operation not permitted, >> so my doubt is, only the owner can change the permissions to a file? > > Think about the *meaning* of what you tried to do: you, as a member of the > group, but not as the owner, are trying to make it so that the owner cannot even look at the file, not execute, not write, not even read. Does > that make sense? That would be incorrect...he, as a member of the group, but not the owner, is trying to remove world rwx access (if he was trying to lock out the owner, he'd have placed the 0 at the front (i.e. 077). Permissions 770 give owner and group full access, and removes access for all others on the system (outside of root, that is). -- Mike Burger http://www.bubbanfriends.org Visit the Dog Pound II BBS telnet://dogpound2.citadel.org or http://dogpound2.citadel.org To be notified of updates to the web site, visit: https://www.bubbanfriends.org/mailman/listinfo/site-update or send a blank email message to: site-update-subscribe@xxxxxxxxxxxxxxxxx -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list