Use the shell to generate a random password

32 letters plus numbers, will be faster than using random urandom

tr -cd '[:alnum:]' </dev/urandom | head -c 32

W0ydtxraFAeHlwXTTjqqrZaLZGnOKYif

 

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Origin www.cnblogs.com/one-day-one/p/11165593.html