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Linux Install Ruby compilation environment

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Author: User
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1. Input: Yum install Ruby

1.1 Error downloading Packages If installation file is wrong:

Input: Yum Clean all

input:yum Makecache, at this point if error cannot find a valid BaseURL for repo:base/7/x86_64,

Open Vi/etc/sysconfig/network-scripts/ifcfg-enp4s0 (each machine may be different, but the format will be "Ifcfg-e ..."). But the content contains:

Restart Network input: Service network restart

And then type: Yum Makecache

2. In the input: Yum install Ruby

Linux Install Ruby compilation environment

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