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Top Forums UNIX for Dummies Questions & Answers Recursive copy to a RANDOM name Post 302248423 by Perderabo on Friday 17th of October 2008 03:23:50 PM
Old 10-17-2008
Count the files so we know how many:
find . -type f | wc -l


Post a few sample filenames showint desired transformation:

grand canyon.gif -> 000123456.gif
or
grand canyon -> 00001112233

or whatever. There are ways to to get unique random numbers, but do they really need to be random? Naming them 1, 2, 3, etc is a snap.
 

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rand(3UCB)					     SunOS/BSD Compatibility Library Functions						rand(3UCB)

NAME
rand, srand - simple random number generator SYNOPSIS
/usr/ucb/cc [ flag ... ] file ... int rand(); int srand(seed) unsigned seed; DESCRIPTION
rand() uses a multiplicative congruential random number generator with period 2^32 to return successive pseudo-random numbers in the range from 0 to 2^31 -1. srand() can be called at any time to reset the random-number generator to a random starting point. The generator is initially seeded with a value of 1. SEE ALSO
cc(1B), drand48(3C), rand(3C), random(3C) NOTES
Use of these interfaces should be restricted to only applications written on BSD platforms. Use of these interfaces with any of the system libraries or in multi-thread applications is unsupported. The spectral properties of rand() leave a great deal to be desired. drand48(3C) and random(3C) provide much better, though more elaborate, random-number generators. The low bits of the numbers generated are not very random; use the middle bits. In particular the lowest bit alternates between 0 and 1. SunOS 5.11 30 Oct 2007 rand(3UCB)
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