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evmn/UUID-v4.sh

Created September 16, 2020 07:42
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UUID-v4.sh
for i in {1..10}
do
cat /dev/urandom | \
tr -dc "a-f0-9"| \
fold -w 36 | \
head -n 1 | \
sed -E -e 's/(.{8}).(.{4}).(.{4}).(.{4}).(.*)/\1-\2-\3-\4-\5/' | \
sed -E -e 's/(.{14}).(.*)/\14\2/' | \
sed -E -e "s/(.{19}).(.*)/\1$(shuf -n 1 -e 8 9 a b)\2/"
done
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