Bash Series (1)--shell type

• Login shell (requires a password)

To log in normally through a terminal, you need to enter a user name and password.

Using Su-username

Using su-l username

• Non-login shell (no password required)

SU username

Open terminal window under graphics terminal

Shell scripts that are executed automatically

• Bash configuration file:

Configuration files used by the global configuration:

/etc/profile/etc/profile.d/*.sh/etc/bashrc

Edit any one of the above 3 profiles, which will take effect for all users.

• Personal configuration

The configuration file used is located in the user's home directory under the following two files:

~/.bash_profile ~/.BASHRC

The above two files are only valid for the current user.

If the global configuration and personal configuration cause a conflict, then the personal configuration takes precedence.

• File function of profile class:

Define environment variables.

Run the command or script.

• The role of the BASHRC class file:

Defining local Variables

Defining command aliases

How does the login shell read the configuration file?

/etc/profile--/etc/profile.d/*.sh--and ~/.bash_profile--~/.BASHRC--/ETC/BASHRC

How does the non-login shell read the configuration file?

~/.BASHRC--/ETC/BASHRC-/etc/profile.d/*.sh

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Bash Series (1)--shell type