Reading text file, comparing a value in a line, and placing only part of the line in a variable? Post: 302840791

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LEARN ABOUT FREEBSD

diff3

DIFF3(1)							   User Commands							  DIFF3(1)

NAME

       diff3 - compare three files line by line

SYNOPSIS

       diff3 [OPTION]... MYFILE OLDFILE YOURFILE

DESCRIPTION

       Compare three files line by line.

       -e  --ed
	      Output unmerged changes from OLDFILE to YOURFILE into MYFILE.

       -E  --show-overlap
	      Output unmerged changes, bracketing conflicts.

       -A  --show-all
	      Output all changes, bracketing conflicts.

       -x  --overlap-only
	      Output overlapping changes.

       -X     Output overlapping changes, bracketing them.

       -3  --easy-only
	      Output unmerged nonoverlapping changes.

       -m  --merge
	      Output merged file instead of ed script (default -A).

       -L LABEL  --label=LABEL
	      Use LABEL instead of file name.

       -i     Append `w' and `q' commands to ed scripts.

       -a  --text
	      Treat all files as text.

       --strip-trailing-cr
	      Strip trailing carriage return on input.

       -T  --initial-tab
	      Make tabs line up by prepending a tab.

       --diff-program=PROGRAM
	      Use PROGRAM to compare files.

       -v  --version
	      Output version info.

       --help Output this help.

       If a FILE is `-', read standard input.  Exit status is 0 if successful, 1 if conflicts, 2 if trouble.

AUTHOR

       Written by Randy Smith.

REPORTING BUGS

       Report bugs to <bug-gnu-utils@gnu.org>.

COPYRIGHT

       Copyright (C) 2004 Free Software Foundation, Inc.
       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

SEE ALSO

       The full documentation for diff3 is maintained as a Texinfo manual.  If the info and diff3 programs are properly installed  at  your  site,
       the command

	      info diff3

       should give you access to the complete manual.

diffutils 2.8.7 						    April 2004								  DIFF3(1)