Cmd 'cat /dev/urandom' not closing cleanly Post: 302994400

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Top Forums UNIX for Advanced & Expert Users Cmd 'cat /dev/urandom' not closing cleanly Post 302994400 by user052009 on Wednesday 22nd of March 2017 12:41:58 PM

03-22-2017

Registered User

Cmd 'cat /dev/urandom' not closing cleanly

Hi

I'm running the following command to generate a random password in a KSH script on a RHEL Linux VM but for some reason the cmd is not being closed and it's causing problems on the host.

Code:

PASSWORD="$(cat /dev/urandom | tr -dc "a-zA-Z0-9" | fold -w 16 | head -1)Aa0!"

The code worked as expected but the side effects were definitely unexpected. Any idea how I can enhance this to ensure the urandom stream gets closed after it's been called and therefore prevent the server from becoming overloaded?
Many thanks.

user052009

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