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Full Discussion: output difference in two files
Top Forums UNIX for Dummies Questions & Answers output difference in two files Post 302214348 by Franklin52 on Sunday 13th of July 2008 02:09:25 PM
Old 07-13-2008
You can do something like this:

Code:
#!/bin/sh

rm diff1 diff2

while read line; do
  grep "$line" file2 > /dev/null 2>&1
  case $? in
     1) echo "$line" >> diff1 ;;
  esac
done < file1

while read line; do
  grep "$line" file1 > /dev/null 2>&1
  case $? in
     1) echo "$line" >> diff2 ;;
  esac
done < file2

Or:

Code:
diff file1 file2|awk '/^</{print $2 > diff1}/^>/{print $2 > diff2}'

The differences are in the files diff1 and diff2.

Regards
 

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LEARN ABOUT NETBSD

cmp

CMP(1)							    BSD General Commands Manual 						    CMP(1)

NAME

     cmp -- compare two files

SYNOPSIS

     cmp [-l | -s] file1 file2 [skip1 [skip2]]

DESCRIPTION

     The cmp utility compares two files of any type and writes the results to the standard output.  By default, cmp is silent if the files are the
     same; if they differ, the byte and line number at which the first difference occurred is reported.

     Bytes and lines are numbered beginning with one.

     The following options are available:

     -l    Print the byte number (decimal) and the differing byte values (octal) for each difference.

     -s    Print nothing for differing files; return exit status only.

     The optional arguments skip1 and skip2 are the byte offsets from the beginning of file1 and file2, respectively, where the comparison will
     begin.  The offset is decimal by default, but may be expressed as an hexadecimal or octal value by preceding it with a leading ``0x'' or
     ``0''.

     The cmp utility exits with one of the following values:

     0	   The files are identical.

     1	   The files are different; this includes the case where one file is identical to the first part of the other.	In the latter case, if the
	   -s option has not been specified, cmp writes to standard output that EOF was reached in the shorter file (before any differences were
	   found).

     >1    An error occurred.

SEE ALSO

     diff(1), diff3(1)

STANDARDS

     The cmp utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.

BSD
								   June 6, 1993 							       BSD
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