Linux bash script how to generate a random password using /dev/urandom -

Linux bash script how to generate a random password using /dev/urandom

This command will generate a random password using all letters and numbers that is 20 characters wrong based on /dev/urandom (for the most truly random output).

echo `< /dev/urandom tr -dc _A-Z-a-z-0-9 | head -c${1:-20};echo;`


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