HP-UX Reference (11i v2 03/08) - 1 User Commands A-M (vol 1)

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ln(1) ln(1)

stat(2)). A readlink() call can be used to read the contents of the symbolic link (see

readlink(2)). Symbolic links may span ﬁle systems and refer to directories.

Access Control Lists (ACLs)

If optional ACL entries are associated with new_ﬁle,

ln displays a plus sign (+) after the access mode

when asking permission to overwrite the ﬁle.

If new_ﬁle is a new ﬁle, it inherits the access control list of ﬁle1, altered to reﬂect any difference in owner-

ship between the two ﬁles (see acl(5) and aclv(5)). In JFS ﬁle systems, new ﬁles created by

ln do not

inherit their parent directory’s default ACL entries (if any), but instead retain their original ACLs.

EXTERNAL INFLUENCES

Environment Variables

LC_CTYPE determines the interpretation of text as single byte and/or multibyte characters.

LANG and LC_CTYPE determine the local language equivalent of

y (for yes/no queries).

LANG determines the language in which messages are displayed.

LC_CTYPE is not speciﬁed in the environment or is set to the empty string, the value of

LANG is used

as a default for each unspeciﬁed or empty variable. If

LANG is not speciﬁed or is set to the empty string,

a default of

C (see lang(5)) is used instead of

LANG. If any internationalization variable contains an

invalid setting,

ln behaves as if all internationalization variables are set to

C. See environ(5).

International Code Set Support

Single byte and multibyte character code sets are supported.

EXAMPLES

The following command creates

file1 and file2 in dest_dir, which are linked back to the original

ﬁles file1 and file2:

ln -f file1 file2 dest_dir

If file1 and/or file2 exists in the destination directory, it is removed and replaced by a link to

file1

or file2, respectively. If existing ﬁle

file1 or file2 is a link to another ﬁle or a ﬁle with links, the

existing ﬁle remains. Only the link is broken and replaced by a new link to

file1

or file2.

WARNINGS

ln does not create hard links across ﬁle systems.

DEPENDENCIES

NFS

Access control lists of networked ﬁles are summarized (as returned in

st_mode by stat()), but not

copied to the new ﬁle. When using ln on such ﬁles, a + is not printed after the mode value when asking

for permission to overwrite a ﬁle.

AUTHOR

ln was developed by AT&T, the University of California, Berkeley and HP.