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Full Discussion: Diff/head - not sure if this is the right command to use
Top Forums Shell Programming and Scripting Diff/head - not sure if this is the right command to use Post 302743861 by Don Cragun on Thursday 13th of December 2012 12:56:03 PM
Old 12-13-2012
The following seems to do what you want:
Code:
awk 'FNR==NR{f[FNR]=$0;next}
{       if(f[FNR] != $0) {
                end = FNR
                exit
        }
}
END{    if(end > 1) {
                printf("echo rm ")
                for(i = 1;i < end; i++)
                        printf(" '\''%s'\''", f[i]);
                printf("\n");
        } else  printf("echo \"ADRCI did not remove any files.\"\n")
}' x1.txt x2.txt | sh

Try it and if it looks like it identifies the correct set of files, change the first printf call in the END section from:
Code:
printf("echo rm ")

to:
Code:
printf("rm ")

 

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LEARN ABOUT CENTOS

rpmdev-diff

RPMDEV-DIFF(1)							   User Commands						    RPMDEV-DIFF(1)

NAME

       rpmdev-diff - manual page for rpmdev-diff version 1.4

SYNOPSIS

       rpmdev-diff [OPTION]... [DIFF-OPTIONS] FROM-ARCHIVE TO-ARCHIVE

DESCRIPTION

       rpmdev-diff diffs contents of two archives.

       See rpmdev-extract(1) for information about supported archive types.

OPTIONS

       -c, --contents
	      Diff contents of files in archives.  This is the default.

       -l, --list
	      Diff lists of files in archives.

       -L, --long-list
	      Diff long lists (akin to 'find -ls') of files in archives.

       -m, --metadata
	      Diff archive metadata (only implemented for rpms for now).

       -h, --help
	      Print help message and exit.

       -v, --version
	      Print version information and exit.

       diff-options
	      Options  passed  to  diff(1).  The first repeated argument of the above or the first argument starting with a '-' but not one of the
	      above starts diff-options, the first one not starting with it ends them.	Default: -Nup for contents (in addition to -r  which  will
	      always be passed), -U0 for others.

       More than one of -c, -l, -L, and -m may be specified.

REPORTING BUGS

       Report bugs to <https://bugzilla.redhat.com/>.

COPYRIGHT

       Copyright  (C)  2004-2010  Ville Skytta <ville.skytta@iki.fi> This program is free software; you can redistribute it and/or modify it under
       the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of  the  License,  or  (at  your
       option) any later version.

rpmdev-diff version 1.4 					     June 2014							    RPMDEV-DIFF(1)
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