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MurphysChaos/guidgen

Created December 11, 2018 17:40
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Generate a random GUID/UUID
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guidgen
#!/usr/bin/env bash
# 1. Get 16 characters (128 bits) from a pseudorandom number generator
# 2. Convert characters to hexadecimal representation
# 3. Remove spaces from string
# 4. Insert dashes
echo $(head -c 16 /dev/urandom | od -t x8 -An | sed 's/ //g' | sed -E 's/(.{8})(.{4})(.{4})(.{4})(.{12})/\1-\2-\3-\4-\5/')
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