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NAME
     twmerge, filemerge - twmerge is  a  window-based  file  com-
     parison and merging program

SYNOPSIS
     twmerge [ -b ] [ -r ] [ -tabsize number ] [ -diffopt [bwi] ]
     [ -a ancestor ] [ -f1 name ]
         [ -f2 name ] [ -l listfile ]
         [ leftfile [ rightfile [ outfile ] ] ] [ -V ]

DESCRIPTION
     twmerge, formerly known as FileMerge, is the graphical  user
     interface to diff(1), the utility for displaying differences
     between source files.  twmerge compares two files with  each
     other  or  with  a  common  ancestor  file and automatically
     merges the files into an output file which you can edit.

     You can start twmerge from a shell command line as described
     in  this  man page, from Sun TeamWare, or from Sun WorkShop.
     See the workshop(1) man page for details.

     You can specify the names of the input files and the name of
     the  output file at startup or from within the tool after it
     has started; however, to load files from a list you must use
     command-line options at startup.

OPTIONS
     -b   Causes twmerge to ignore trailing blanks (white  space)
          when comparing lines.

     -r   Starts twmerge in read-only mode. Only the  input  file
          text  panes  are  displayed;  the  output  text pane is
          absent.

     -tabsize  number
          Sets the number of spaces that twmerge  is  to  use  to
          represent  tabs.  If number is zero, tab characters are
          represented with the '^I' character sequence.

     -diffopt
          Specifies options to  be  passed  to  the  differencing
          engine.

          -b Causes twmerge to ignore trailing white  space  when
          comparing lines (identical to the filemerge -b option).

          -w Causes twmerge to ignore all white space  when  com-
          paring lines.

          -i Causes twmerge to  ignore  the  distinction  between
          upper and lower case letters when comparing lines.

     -a ancestor
          Specifies an existing ancestor file for the  two  files
          to be merged (called descendants of the ancestor file).
          The merged file is based on ancestor  and  the  changes
          made to it in the descendants.

     -f1 name1
          Sets the file name displayed for the  left,  or  child,
          pane.  This  option  is  useful when a list of files is
          being loaded (with the -l  option),  and  you  want  to
          display  a  name for reference only in the twmerge win-
          dow.

          For example, if you are loading files from  two  direc-
          tories  that correspond to two different revisions of a
          product, you could use the -f1 option  to  display  the
          name  Rev1  above  the  left pane and the -f2 option to
          display the name Rev2 above the right pane.

     -f2 name2
          Sets the file name displayed for the right, or  parent,
          file.

     -l listfile
          Specifies a file containing a list of  individual  file
          names.  This  option is useful for  merging entire pro-
          ject directories.

          twmerge uses the names in listfile to successively load
          files  from  directories  named  with  the leftfile and
          rightfile arguments, placing the output  files  in  the
          directory named with the outfile argument. The names in
          listfile must match file  names  in  the  leftfile  and
          rightfile  directories.  When used with the -a ancestor
          option, the ancestor argument should  be  a  directory:
          twmerge  looks for files in the ancestor directory that
          have the same names as those in listfile, and uses  the
          file  with  the  matching name as the ancestor file for
          each merge.

          To load successive files named in listfile, choose File
          -->  Load  Next From List. If you specify "-" for list-
          file, twmerge reads the list  of  files  from  standard
          input.

     leftfile
          The name of the child file to be loaded for comparison.
          When  used  with  the -l listfile option, leftfile is a
          directory of files, which you can  load  in  succession
          from the File menu.

     rightfile
          The name of the parent  file  to  be  loaded  for  com-
          parison.  When used with the -l listfile option, right-
          file is a directory of files, which  you  can  load  in
          succession from the File menu.

          Any of the three input files can be directories, but at
          least one of the three must be a simple file name. When
          you specify a directory for  input,  twmerge  uses  the
          file  name  to  find a corresponding file in the direc-
          tory.

     outfile
          Specifies the name of the merged output file. If you do
          not  specify  an  outfile, the output file is given the
          default name filemerge.out. If you want  to  specify  a
          different  name  when  you  save the file, use File -->
          Save As.

     -V   Displays the version being run.

SEE ALSO
     Sun TeamWare User's Guide

     diff(1), sdiff(1), workshop(1), textedit(1)

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