getacl(1) getacl(1)
NAME [Toc] [Back]
getacl - list access control lists (ACLs) for files (JFS File Systems
only)
SYNOPSIS [Toc] [Back]
/usr/bin/getacl [-ad] file...
DESCRIPTION [Toc] [Back]
For each argument that is a regular file, special file, or named pipe,
getacl displays the owner, group, and the Access Control List (ACL).
For each directory argument, getacl displays the owner, group, and the
ACL and/or the default ACL. Only directories contain default ACLs.
With the -a option specified, the filename, owner, group, and the ACL
of the file will be displayed. With the -d option specified, the
filename, owner, group, and the default ACL of the file, if it exists,
will be displayed. With options not specified, the filename, owner,
group, and both the ACL, and the default ACL, if it exists, will be
displayed.
This command may be executed on a file system that does not support
ACLs. It will report the ACL consisting of only the owning user,
owning group, class and other entries, based on the permission bits.
When multiple files are specified on the command line, a blank line
will separate the ACL for each file. The format of an ACL is:
# file: filename
# owner: uid
# group: gid
user::perm
user:uid:perm
group::perm
group:gid:perm
class:perm
other:perm
default:user::perm
default:user:uid:perm
default:group::perm
default:group:gid:perm
default:class:perm
default:other:perm
The first three lines show the filename, the file owner, and the file
owning group. Note that when only the -d option is specified, and the
file has no default ACL, only these three lines will be displayed.
The user entry without a user ID indicates the permissions that will
be granted to the owner of the file. One or more additional user
entries indicate the permissions that will be granted to the specified
users. The group entry without a group identifier indicates the
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getacl(1) getacl(1)
permissions that will be granted to the owning group of the file. One
or more additional group entries indicate the permissions that will be
granted to the specified groups. The other entry indicates the
permissions that will be granted to others.
The default entries (default:user, default:group, and default:other)
may only exist for directories, and indicate the default user, group,
and other entries that will be added to a file created within the
directory.
The uid is a login name, or a user ID if there is no entry for the uid
in the system's password file; gid is a group name, or a group ID if
there is no entry for the gid in the system's group file; and perm is
a three character string composed of the letters representing the
separate discretionary access rights: r (read), w (write), x
(execute/search), or the placeholder character -. The perm will be
displayed in the following order: rwx. If a permission is not granted
by an ACL entry, the placeholder character will appear.
The ACL entries will be displayed in the order in which they will be
evaluated when an access check is performed. The default ACL entries
which may exist on a directory have no effect on access checks.
The file owner permission bits represent the access that the owning
user ACL entry has. The file group class permission bits represent
the most access that any additional user entry, additional group
entry, or the owning group entry may grant. The file other permission
bits represent the access that the other ACL entry has. If a user
invokes the chmod command and changes the file group class permission
bits, the access granted by the additional ACL entries may be
restricted.
In order to indicate that the file group class permission bits
restrict an ACL entry, getacl will display, after each affected entry,
text in the form #effective:perm, where perm will show only the
permissions actually granted.
EXAMPLES [Toc] [Back]
Given file filea, with an ACL six entries long, the command
$ getacl filea
would print:
# file: filea
# owner: fletcher
# group: us
user::rwx
user:spy:---
user:archer:rw-
group::r--
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getacl(1) getacl(1)
class:rw-
other:---
Given file filea, with an ACL six entries long, after the command
chmod 700 filea was issued, the command
$ getacl filea
would print:
# file: filea
# owner: fletcher
# group: us
user::rwx
user:spy:---
user:archer:rw- #effective:---
group::r-- #effective:---
class:---
other:---
Given directory fileb, with an ACL containing default entries, the
command
$ getacl -d fileb
would print:
# file: fileb
# owner: fletcher
# group: us
default:user::rwx
default:user:spy:---
default:group::r--
default:other:---
Given directory fileb, the command
$ getacl fileb
would print:
# file: fileb
# owner: fletcher
# group: us
user::rwx
user:spy:---
user:archer:rw-
group::r--
other:---
default:user::rwx
default:user:spy:---
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getacl(1) getacl(1)
default:group::r--
default:other:---
NOTICES [Toc] [Back]
The output from getacl will be in the correct format for input to the
setacl command. If the output from getacl is redirected to a file,
the file may be used as input to setacl. In this way, a user may
easily assign one file's ACL to another file.
FILES [Toc] [Back]
/etc/passwd for user IDs
/etc/group for group IDs
SEE ALSO [Toc] [Back]
acl(2), aclsort(3C), chmod(1), ls(1), setacl(1).
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