Rename files with unique, randomly generated file names

for i in *.txt; do j=`mktemp | awk -F. '{print $2".txt"}'`; mv "$i" "$j"; done
A simple way to rename a set of files to a unique, randomized file name.
Sample Output
hosts1.txt PjbKxiUXXM.txt
hosts2.txt q7qf8z15fx.txt
hosts3.txt qsIazSCGHm.txt
hosts4.txt GCWoo6oqMJ.txt
hosts5.txt 9CHc4MfCYM.txt

By: yepitsken
2012-04-17 17:13:32

What Others Think

Hmm... It works, but it's a bit messy. First of all, stop mktemp creating files that we don't use: mktemp -u Then use bash to replace awk (strip out everything (*) until dot): ${filename##*.}.txt That leaves us with: for i in *.txt; do F=$(mktemp -u); mv "$i" ${F##*.}.txt; done
flatcap · 471 weeks and 4 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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