Bash password creation
I am currently generating a password which is a hash of the date. I would like to increase this generated password protection by adding some uppercase, lowercase, numeric and special characters, up to 10 characters in total.
What I have now is below. As you can see, it is assigning the result to my PASSWORD variable.
PASSWORD=$(date +%s | sha256sum | base64 | head -c 15)
I'm not sure if I can do this inline or if I need to create a function in my bash script to satisfy? Is it possible?
Thank you very much in advance.
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C tr
and head
:
password=$(tr -dc 'A-Za-z0-9!?%=' < /dev/urandom | head -c 10)
echo "$password"
Output (example):
k? lmyif6aE
tr
reads bytes through stdin from Linux special random device / dev / urandom and removes all bytes / characters but A
before Z
, A
before Z
, 0
before 9
and !?%=
. tr
sends its output via stdout to stdin head
. head
truncates the output after 10 bytes.
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