Shell Login | Shell Login Steps | System Login Steps by linuxtopic

After the Successfully booting the system we got a login prompt and entered username and password.

To know about boot process, click here

1 - Enter Username and Password, System Execute profile file, its location in /etc directory.


2 - Profile file search and execute all scripts (*.sh ) file from the /etc/profile.d/ directory.

ls -l /etc/profile.d/

3 - profile and profile.d/*.sh keeps all the systemwide environment and shell variables

4 - successful execution of profile, system find and execute bash_profile file, this file store in home directory of the user.

cat ~/.bash_profile

5 - bash_profile stores all user specific environment and shell variables and execute it.

6 - in the next steps of shell login execute ~/.bashrc file, this file execute /etc/bashrc file with their system wide aliases and local functions, User command aliases and shell functions.

cat  ~/.bashrc

7 - After all successfully executed,we got a login on the system and ready to enter any command.

To know about Command execution process, click here

Shell Login | Shell Login Steps | System Login Steps  by linuxtopic

Thanks

End of this Shell Login Process,  we need your support so i request you to please comment if
something missed by me, share and like this post.

www.linuxtopic.com