The name of the link to check for the existence of.
The name does not support wildcard characters.
On Unix-like systems, if the first character is a ~ (tilde)
character optionally followed by a username, it is replaced by the
current or specified user's home directory.
Returns:
0
The link does not exist or it is not a link.
1
The link exists.
Example 8.29. RexxUtil — SysIsFileLink
ifSysIsFileLink(InputFile)thensay"Link Exists!"elsesay"Link does not exist."