Internationalization

System-defined words

The UnixWare system uses a number of special words to identify system resources, user and group names, process IDs, peripherals, and other information. The following should be specified only with characters from the primary code set:

process ID numbers
message queue, semaphore, and shared memory identifiers
external symbol names and fill patterns for the cc and as commands
layer names
user names
group names

Although the following can be specified with supplementary code set characters, we recommend against it:

passwords
names of devices, terminals, and special devices
printer names and printer class names
system names
disk pack, diskette, and tape label/volume names
names visible to other machines on a network
environment variable names

The following can be specified with primary or supplementary code set characters, subject to length limitations imposed by the file system:

file names
directory names
command names
file system names

File name prefixes of the form s., or suffixes of the form .c, must be specified with characters from the primary code set.