Log-in Shell and non-logon shell

At the user's point of view, there are two types of shells:

log-in Shell:

Log in normally via a client

Su-username or Su-l USERNAME

Non-logon shell:

Su USERNAME

Command window open under graphical terminal

Shell scripts that are executed automatically

Bash configuration file:

Global configuration:

/etc/profile,/etc/profile.d/*.sh,/ETC/BASHRC

Personal configuration:

~/.bash_profile, ~/.BASHRC

file for profile class:

Setting environment variables

Run commands and scripts

Files of the BASHRC class:

Setting Local Variables

Defining command aliases

How does the login shell read the configuration file?

~/.BASHRC, ~/.bash_profile ,/etc/profile,/etc/profile.d/*.sh, /ETC/BASHRC

How does a non-logon shell read a configuration file?

~/.BASHRC , /etc/bashrc ,/etc/profile.d/*. SH-& gt;

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Log-in Shell and non-logon shell