UNIX for Dummies Questions & Answers

Hello,

I have two folders.
One has 1183 text files (folder A).
The other (folder B) has 1160 of those 1183 files (the contents in these 1160 files are identical to the contents in the corresponding files in the other folder, but the names of the files in this folder are completely different from the names in the other folder)

I want to figure out which 23 files are missing in the second folder (presumably unix can examine each file in folder A and see whether or not folder B has a file with the same contents... and keep doing this until it finds the 23 files that are in folder A that are not in folder B).

How would I go about doing something like this ??

Any help, suggestions, or discussions would be greatly appreciated,

juliette salexa

Try:

Code:

fdupes A B

This will find all files that do match. Perhaps you can take it from there?

Code:

#!/bin/bash

tmp=$(mktemp)
tmp1=$(mktemp); tmp2=$(mktemp)

for f in d1/*; do
    echo $(md5sum "${f}") >> ${tmp}
done
sort -k1 ${tmp} > ${tmp1}

echo '' > ${tmp}
for f in d2/*; do
    echo $(md5sum "${f}") >> ${tmp}
done
sort -k1 ${tmp} > ${tmp2}

!!! That script misses the last part. !!!
It md5sum every file in directories d1 and d2 and save those in 2 temporary files
I completely fail at writing the last part: an awk script that compares ${tmp1} and ${tmp2} (at least the first field (the md5))
Can any awk guru write one for me?