ul Command
  
  
  Purpose
  
  Performs underlining.
  
   Syntax
  
  ul [  -i ] [  -t Terminal ] [ File ... ]
  
  Description
  
  The ul command reads the named files specified by the File param-
  eter (or standard  input  if no file is given) and translates oc-
  currences of underscores to the sequence that indicates underlin-
  ing for the terminal in use, as specified by the TERM environment
  variable.
  
  Flags
  
  -i 	Causes the ul command to indicate underlining by a separate
  line containing appropriate _  (underline  characters).  Use this
  to see the underlining present in an nroff command output stream
  on a CRT terminal.
  
  -t Terminal	Overrides the terminal type specified in the environ-
  ment.  The  terminfo file is read to determine the appropriate
  sequences  for  underlining.    If the terminal is  incapable  of
  underlining, but is capable of a standout mode, then that mode is
  used  instead.  If the terminal can overstrike  or  automatically
  underline, the ul command acts like the cat command and displays
  on the screen.  If the terminal cannot underline  and no alterna-
  tives are available, underlining is ignored.
  
  	If the -t flag is not specified, the ul command translates for
  the terminal type specified by the TERM environment variable.  If
  the value of the Terminal variable is not a valid terminal type,
  the ul command translates for a dumb terminal.
  
  Implementation Specifics
  
  This command is part of Formatting Tools in the Text Formatting
  System.
  
  Files
  
  /usr/share/lib/terminfo directory	Contains the terminal capabili-
  ties database.
  
  Related Information
  
  The  cat command,  colcrt command,  man command,  nroff command.
  
  The  terminfo file.
  
   Text Formatting Overview in AIX Version 3.2 Text Formatting
  Reference.