sdiff Command
  
  
  Purpose
  
  Compares two files and displays the differences in a side-by-side
  format.
  
   Syntax
  
  sdiff [  -l |  -s ] [  -o OutFile ] [  -w Number ] File1 File2
  
  Description
  
  The sdiff command reads the files specified by the File1 and
  File2 parameters, uses the  diff command to compare them, and
  writes the results to standard output  in  a side-by-side format.
  The sdiff command displays each line of the two files with a
  series of spaces between them if the lines are identical, a <
  (less than sign) in the field of spaces if the line only exists
  in File1, a > (greater than sign) if the line only exists in
  File2, and a | (vertical bar) for lines that are different.
  
  When you specify the  -o flag, the sdiff command produces a third
  file by merging the files, specified by the File1 and File2
  parameters, according to your instructions.
  
  Note:	The sdiff command invokes the diff -b command to compare
  two input files.  The -b flag causes the diff command to ignore
  trailing spaces and tab characters, and to consider other strings
  of spaces as equal.
  
  Flags
  
  -l	Displays only the left side when lines are identical.
  
  -o OutFile	Creates a third file, specified by the OutFile parame-
  ter, by a controlled line-by-line merging of the two files speci-
  fied by the File1 and the File2 parameters.  The following sub-
  commands govern the creation of this file:
  
  e	Starts the ed command with an empty file.
  
  e b	Starts the ed command with both sides.
  
  e l	Starts the ed command with the left side.
  
  e r	Starts the ed command with the right side.
  
  l	Adds the left side to the output file (the OutFile parameter).
  
  r	Adds the right side to the output file (the OutFile parameter).
  
  s	Stops displaying identical lines.
  
  v	Begins displaying identical lines.
  
  q	Exits the program.
  
  Each time you exit from the ed command, the sdiff command writes
  the resulting edited file to the end of OutFile.  If you fail to
  save the changes before exiting, the sdiff command writes the
  initial input to OutFile.
  
  -s	Does not display identical lines.
  
  -w Number	Sets the width of the output line to the Number parame-
  ter.  The default value of Number is 130 characters.
  
  Examples
  
  1.	To print a comparison of two files, enter:
  
  sdiff chap1.bak chap1 
  
  This displays a side-by-side listing that compares each line of
  the chap1.bak and chap1 files.
  
  2.	To display only the lines that differ, enter:
  
  sdiff -s -w 80 chap1.bak chap1
  
  This displays the differences at the work station.  The -w 80
  flag and parameter sets the page width to 80 columns.  The -s
  flag tells the sdiff command not to display lines that are ident-
  ical in both files.
  
  3.	To selectively combine parts of two files, enter:
  
  sdiff -s -w 80 -o chap1.combo chap1.bak chap1
  
  This combines the chap1.bak and chap1 files into a new file
  called chap1.combo.  For each group of differing lines, the sdiff
  command  prompts you which group to keep or whether you  want  to
  edit them using the ed command.
  
  Implementation Specifics
  
  This command is part of Base Operating System (BOS) Runtime.
  
  Files
  
  /usr/bin/sdiff	Indicates the sdiff command.
  
  Related Information
  
   Files Overview in AIX Version 3.2 System User's Guide: Base and
  Devices.
  
   Input and Output Redirection Overview in AIX Version 3.2 System
  User's Guide: Base and Devices.
  
  The  diff command,  ed command.