Configuration files corresponding to various shells

The configuration files corresponding to various shells are listed below:

Bourne Shell (sh) -----. profile

Korn Shell (ksh) -----. profile (compatible with sh)

C Shell (csh) -----. login

Bourne Again Shell (bash) ----- bash is designed to be compatible with sh and ksh and has csh features, so it will be searched in sequence under the user's main directory. bash_profile ,. bash_login ,. profile file, and use the first one found as your configuration file;

 

When you start a login shell, bash consults the following files in the specified order:
1./etc/profile
2 .~ /. Bash. profile
3 .~ /. Bash_login
4 .~ /. Profile
When you start a nonlogin shell, bash consults only one startup file ,~ /Bash. rc.