Recursive copy to a RANDOM name Post: 302248557

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Top Forums UNIX for Dummies Questions & Answers Recursive copy to a RANDOM name Post 302248557 by Perderabo on Saturday 18th of October 2008 09:46:24 AM

10-18-2008

Administrator Emeritus

There are a few problems here. A directory with 80,000 files will behave very slowly with most file systems. Directory accesses are almost always sequential. And those file names are asking for trouble. If you really want to do this, make a practice directory hierarchy will only a hundred files or so and try it out there.

Code:

$ find pix
pix
pix/a
pix/a/a.gif
pix/a.jpg
pix/b
pix/b/a.gif
pix/b/xyz 001 [1]  .jpg
pix/b.jpg
pix/c
pix/c/a.gif
pix/c.jpg
pix/d.jpg
pix/e.jpg
pix/f.jpg
pix/g.jpg
pix/h.jpg
pix/i.jpg
pix/j.jpg
pix/k.jpg
pix/l.jpg
pix/m.jpg
pix/n.jpg
pix/o.jpg
pix/p.jpg
pix/q.jpg
pix/r.jpg
pix/s.jpg
pix/t.jpg
pix/u.jpg
pix/v.jpg
pix/w.jpg
pix/x.jpg
pix/xyz 001 [1]  .jpg
pix/xyz 001 [2]  .jpg
pix/xyz 001 ]2[  .jpg
pix/y.jpg
pix/z.jpg
$
$
$
$
$ cat fixpix
#! /usr/local/bin/bash

SOURCE=pix
DEST=newpix
count=0

find $SOURCE -type f | while read pathname ; do
        ((count=count+1))
        dir=${pathname%/*}
        file=${pathname#$dir/}
        base=${file%.*}
        typ=${file##*.}
        newfile=$(printf "%s%09d.%s" "$base" $count "$typ")
        echo mv \""$pathname"\" \""$DEST/$newfile"\"
done

$
$
$
$
$
$ ./fixpix
mv "pix/a/a.gif" "newpix/a000000001.gif"
mv "pix/a.jpg" "newpix/a000000002.jpg"
mv "pix/b/a.gif" "newpix/a000000003.gif"
mv "pix/b/xyz 001 [1]  .jpg" "newpix/xyz 001 [1]  000000004.jpg"
mv "pix/b.jpg" "newpix/b000000005.jpg"
mv "pix/c/a.gif" "newpix/a000000006.gif"
mv "pix/c.jpg" "newpix/c000000007.jpg"
mv "pix/d.jpg" "newpix/d000000008.jpg"
mv "pix/e.jpg" "newpix/e000000009.jpg"
mv "pix/f.jpg" "newpix/f000000010.jpg"
mv "pix/g.jpg" "newpix/g000000011.jpg"
mv "pix/h.jpg" "newpix/h000000012.jpg"
mv "pix/i.jpg" "newpix/i000000013.jpg"
mv "pix/j.jpg" "newpix/j000000014.jpg"
mv "pix/k.jpg" "newpix/k000000015.jpg"
mv "pix/l.jpg" "newpix/l000000016.jpg"
mv "pix/m.jpg" "newpix/m000000017.jpg"
mv "pix/n.jpg" "newpix/n000000018.jpg"
mv "pix/o.jpg" "newpix/o000000019.jpg"
mv "pix/p.jpg" "newpix/p000000020.jpg"
mv "pix/q.jpg" "newpix/q000000021.jpg"
mv "pix/r.jpg" "newpix/r000000022.jpg"
mv "pix/s.jpg" "newpix/s000000023.jpg"
mv "pix/t.jpg" "newpix/t000000024.jpg"
mv "pix/u.jpg" "newpix/u000000025.jpg"
mv "pix/v.jpg" "newpix/v000000026.jpg"
mv "pix/w.jpg" "newpix/w000000027.jpg"
mv "pix/x.jpg" "newpix/x000000028.jpg"
mv "pix/xyz 001 [1]  .jpg" "newpix/xyz 001 [1]  000000029.jpg"
mv "pix/xyz 001 [2]  .jpg" "newpix/xyz 001 [2]  000000030.jpg"
mv "pix/xyz 001 ]2[  .jpg" "newpix/xyz 001 ]2[  000000031.jpg"
mv "pix/y.jpg" "newpix/y000000032.jpg"
mv "pix/z.jpg" "newpix/z000000033.jpg"
$

Perderabo

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LEARN ABOUT DEBIAN

puzzle-diff

PUZZLE-DIFF(1)															    PUZZLE-DIFF(1)

NAME

       puzzle-diff - Compare pictures with libpuzzle

SYNOPSIS

       [-b <contrast barrier for cropping>] [-c] [-C <max cropping ratio>] [-e] [-E <similarity threshold>] [-h] [-H <max height>] [-l <lambdas>]
       [-n <noise cutoff>] [-p <p ratio>] [-t] [-W <max width>] <file 1> <file 2>

DESCRIPTION

       puzzle-diff compares two pictures and outputs the normalized distance.

       Try puzzle-diff -h for more info.

EXAMPLES

       Output distance between two images:

	 $ puzzle-diff pic-a-0.jpg pics-a-1.jpg
	 0.102286

       Compare two images, exit with 10 if they look the same, exit with 20 if they don't (may be useful for scripts):

	 $ puzzle-diff -e pic-a-0.jpg pics-a-1.jpg
	 $ echo $?
	 10

       Compute distance, without cropping and with computing the average intensity of the whole blocks:

	 $ puzzle-diff -p 1.0 -c pic-a-0.jpg pic-a-1.jpg
	 0.0523151

AUTHORS

       Frank DENIS libpuzzle at pureftpd dot org

SEE ALSO

       libpuzzle(3), puzzle_set(3)

								    2012-05-09							    PUZZLE-DIFF(1)

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