link — call link function
[XSI] link file1 file2
The link utility shall perform the function call:
link(file1, file2);A user may need appropriate privileges to invoke the link utility.
None.
The following operands shall be supported:
- file1
- The pathname of an existing file.
- file2
- The pathname of the new directory entry to be created.
Not used.
Not used.
The following environment variables shall affect the execution of link:
- LANG
- Provide a default value for the internationalization variables that are unset or null. (See XBD 8.2 Internationalization Variables for the precedence of internationalization variables used to determine the values of locale categories.)
- LC_ALL
- If set to a non-empty string value, override the values of all the other internationalization variables.
- LC_CTYPE
- Determine the locale for the interpretation of sequences of bytes of text data as characters (for example, single-byte as opposed to multi-byte characters in arguments).
- LC_MESSAGES
Determine the locale that should be used to affect the format and contents of diagnostic messages written to standard error.- NLSPATH
- Determine the location of messages objects and message catalogs.
Default.
None.
The standard error shall be used only for diagnostic messages.
None.
None.
The following exit values shall be returned:
- 0
- Successful completion.
- >0
- An error occurred.
Default.
None.
None.
None.
If this utility is directed to create a new directory entry that contains any bytes that have the encoded value of a <newline> character, implementations are encouraged to treat this as an error. A future version of this standard may require implementations to treat this as an error.
XSH link
First released in Issue 5.
Austin Group Defect 251 is applied, encouraging implementations to disallow the creation of filenames containing any bytes that have the encoded value of a <newline> character.
Austin Group Defect 1122 is applied, changing the description of NLSPATH .
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