International Language Environments Guide
    
U
 
 UIL ( Index Term Link )
 
 Unicode 3.1, support ( Index Term Link )
 
 Unicode overview ( Index Term Link )
 
 /usr/include/ctype.h, ctype macros ( Index Term Link )
 
 /usr/ucb/stty, use /bin/stty directory ( Index Term Link )
 
 UTC ( Index Term Link )
 
 UTF-8 encoding ( Index Term Link )
 
 utilities
  genmsg ( Index Term Link ) ( Index Term Link )
  locale ( Index Term Link )