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回复 3# THEBEST
$ echo {a,b}{c,d}{e,f} | xargs -n1 | sort -R | awk 'BEGIN{srand()}{split($1,a,"");for(n=1;n<=3;++n){r=int(rand()*3+1);t=a[n];a[n]=a[r];a[r]=t}print a[1]a[2]a[3];exit}'
bfd
$ echo {a,b}{c,d}{e,f} | xargs -n1 | sort -R | awk 'BEGIN{srand()}{split($1,a,"");for(n=1;n<=3;++n){r=int(rand()*3+1);t=a[n];a[n]=a[r];a[r]=t}print a[1]a[2]a[3];exit}'
fac
$ echo {a,b}{c,d}{e,f} | xargs -n1 | sort -R | awk 'BEGIN{srand()}{split($1,a,"");for(n=1;n<=3;++n){r=int(rand()*3+1);t=a[n];a[n]=a[r];a[r]=t}print a[1]a[2]a[3];exit}'
deb
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