man pages section 1: User Commands
    
Y
 
 yacc - yet another compiler-compiler ( Index Term Link )
 
 yacc, create a tags file for use with ex and vi - ctags ( Index Term Link )
 
 yes/no answer
  prompts for yes/no answer - ckyorn ( Index Term Link )
  provides error message for yes/no answer - erryorn ( Index Term Link )
  provides help message for yes/no answer - helpyorn ( Index Term Link )
  validates yes/no answer - valyorn ( Index Term Link )
 
 yet another compiler-compiler - yacc ( Index Term Link )
 
 ypcat - print values in a NIS database ( Index Term Link )
 
 ypmatch - print the value of one or more keys from a NIS map ( Index Term Link )
 
 yppasswd - change your network password in the NIS database ( Index Term Link )
 
 ypwhich - return name of NIS server or map master ( Index Term Link )