The following links may be established locally to conform to the configuration of the system. This is merely a tabulation of existing practice, and does not constitute a recommendation. However, if they exist, they should have the following uses.
/proc/self/fd/99symbolicxxx foo /dev/mouse mouse port symbolic Current mouse device
/dev/tape tape device symbolic Current tape device
/dev/cdrom CD-ROM device symbolic Current CD-ROM device
/dev/modem modem port symbolic Current dialout device
/dev/root root device symbolic Current root filesystem
/dev/swap swap device symbolic Current swap device
/dev/modem should not be used for a modem which supports dialin as well as dialout, as it tends to cause lock file problems. If it exists, /dev/modem should point to the appropriate dialout (alternate) device.