UNIX for Dummies Questions & Answers

Hi,

I have a .txt file which has to be compared with a folder and print the difference to some other .txt file.

I did try with the diff command..i mean

diff /tmp/aaa/bbb.txt /space/aaa/bbb/

/***bbb.txt contains all the files names which may or may not exist in the folder bbb..so i need to capture the files that does not in the folder***/

it gives me an error mesg saying..

diff : /space/aaa/bbb/ /bbb.txt : No such file or directory.

Can you help me out with some other command?

Thanks,
Kumar

The man pages of diff says

Code:

SYNOPSIS
       diff [options] from-file to-file

       If from-file is a directory and to-file is not, diff compares the file
       in  from-file whose file name is that of to-file, and vice versa.  The
       non-directory file must not be -.

You may want to use something like this..

Code:

#! /bin/ksh

while read file
do
  [ ! -f "/space/aaa/bbb/${file}" ] && echo "${file} not present in /space/aaa/bbb"
done < /tmp/aaa/bbb.txt

Assuming bbb.txt contains a single filename per line.

The best bet would be somthing like this...

Thnx.Dennis