Centos7 installation mysql prompt / usr/bin/perl is required, how to solve it?

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it is said on the Internet that perl has not been added to the environment variable, but I can use perl-v to view the version information, indicating that the environment variable has been added. What"s going on here.

my perl installation path is in / usr/local/perl and made a soft connection to / usr/bin/perl

Linux centos7 php

Apr.30,2021

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