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Shell Command Summary

Source: Internet
Author: User
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Encountered a remember a

1, omit sudo

Using the Su-i command after landing with the primary user will log in as root in the shell, then the command will not need to add sudo and password. Another user has tried, Su does not have the-i option. Online said Su is the Switch User command, the other is not clear, and passers-by wise more pointing, thanks.

2, resolving DNS

Apt Install bind9
Apt Install dnsutils
Nslookup www.baidu.com
Host Www.baidu.com
Dig www.baidu.com

Shell Command Summary

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