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Extended permissions (ACL)

cheat sheet · Linux · acl https://lab.dimsanych.ru/en/wiki/acl/

Cheat sheet

getfacl file show ACL (+ in ls -l)
setfacl -m u:user:rw file grant a user
setfacl -m g:grp:rx dir grant a group
setfacl -d -m u:user:rw dir inheritance (default ACL)
setfacl -m m::rwx file raise the mask
setfacl -b file remove all ACL entries
getfacl -R dir > acl.bak save the tree's ACL to a file
setfacl --restore=acl.bak restore ACL from a file