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Full Discussion: Script to compare 2 files and prints difference as output sidebyside
Top Forums Shell Programming and Scripting Script to compare 2 files and prints difference as output sidebyside Post 302755315 by Yoda on Saturday 12th of January 2013 01:55:14 PM
Old 01-12-2013
Using diff command is the best option here. But if you want an o/p as per your requirement, then here is another approach:
Code:
c=0
paste -d"@" OLD_FILE NEW_FILE | while IFS=@ read o_line n_line
do
        c=$(( c + 1 ))
        if [ "$o_line" != "$n_line" ]
        then
                echo "Line $c is different:"
                echo "OLD_FILE: $o_line NEW_FILE: $n_line\n"
        fi
done

Last edited by Yoda; 01-12-2013 at 04:11 PM.. Reason: Changed the field separator
 

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LEARN ABOUT SUNOS

echo

echo(3XCURSES)						  X/Open Curses Library Functions					    echo(3XCURSES)

NAME

       echo, noecho - enable/disable terminal echo

SYNOPSIS

       cc [ flag... ] file... -I /usr/xpg4/include -L /usr/xpg4/lib 
       -R /usr/xpg4/lib -lcurses [ library... ]

       c89 [ flag... ] file... -lcurses [ library... ]

       #include <curses.h>

       int echo(void);

       int noecho(void);

DESCRIPTION

       The  echo()  function enables Echo mode for the current screen. The noecho() function disables Echo mode for the current screen. Initially,
       curses software echo mode is enabled and hardware echo mode of the tty driver is disabled. The echo() and noecho() functions control  soft-
       ware echo only. Hardware echo must remain disabled for the duration of the application, else the behavior is undefined.

RETURN VALUES

       Upon successful completion, these functions return OK. Otherwise, they return ERR.

ERRORS

       No errors are defined.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Unsafe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       getch(3XCURSES), getstr(3XCURSES), initscr(3XCURSES), libcurses(3XCURSES), scanw(3XCURSES), attributes(5), standards(5)

SunOS 5.10							    5 Jun 2002							    echo(3XCURSES)
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