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disorder file awk

Randomize a file lines with AWK

The goal here is simple:

  1. I have a file (music playlist, user list,...)
  2. I want to disorder it, just like I woul beat the cards
I asked this a long time ago on Usenet (fr.comp.os.unix), and I got this anwser from St├ęphane CHAZELAS.

If the file is not too big:

awk < fichier '{a[n++]=$0}
                      while(++n<NR)print a[n]}'


awk < fichier 'BEGIN{srand()}{print rand(),$0}'  | sort -k1,1 | cut -d  -f2-

I write it down here just for the archives


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