What is the sequence in which the following files are executed?
Execution sequence for interactive login shell
Following pseudo code explains the sequence of execution of these files.
execute /etc/profile IF ~/.bash_profile exists THEN execute ~/.bash_profile ELSE IF ~/.bash_login exist THEN execute ~/.bash_login ELSE IF ~/.profile exist THEN execute ~/.profile END IF END IF END IF
When you logout of the interactive shell, following is the sequence of execution:
IF ~/.bash_logout exists THEN execute ~/.bash_logout END IF
Please note that /etc/bashrc is executed by ~/.bashrc as shown below:
# cat ~/.bashrc if [ -f /etc/bashrc ]; then . /etc/bashrc Fi
Execution sequence for interactive non-login shell
While launching a non-login interactive shell, following is the sequence of execution:
IF ~/.bashrc exists THEN execute ~/.bashrc END IF
Note: When a non-interactive shell starts up, it looks for ENV environment variable, and executes the file-name value mentioned in the ENV variable.