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spacetrack/urand.sh

Created January 25, 2016 15:33
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print 3 * 4 random chars, exclude upper i "I", upper and lower o "O", lower L "l"
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urand.sh
#!/bin/bash
# print 3 * 4 random chars, exclude upper i "I", upper and lower o "O", lower L "l"
for i in 1 2 3; do cat /dev/urandom | tr -cd 'A-HJ-NP-Za-kmnp-z0-9' | head -c4; if [ "$i" -eq "3" ]; then echo; else echo -n "."; fi; done
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