How can I get the list of all files that are sourced by bash?

Question

Is there a way to find out all the files that are sourced by bash?

Alternately, is there a single point of entry (or a first point of entry) where I can go to follow and find this information by adding a set -x at the top?

(By single point of entry, I do not mean ~/.bashrc or ~/.bash_profile because some other file higher in the source chain tells bash to load these above files in the first place).

Answer 1

Reviving this question because there is an automation for this:

Execute bash and carve it out of the output. -li is login interactively, -x prints out what bash is doing internally, and -c exit just tells bash to terminate immediately. Using sed to filter out the source command or the . alias.

/bin/bash -lixc exit 2>&1 | sed -n 's/^+* \(source\|\.\) //p'

Answer 2

There is no easy catch-all answer here, it depends on the combination of login/interactive attributes.

A login shell will source /etc/profile, and only the first one it finds among ~/.bash_profile, ~/.bash_login, and ~/.profile. You could call these independent points of entry: /etc/profile doesn't need to explicitly source one of the others, it's bash that does it.

For non-login interactive, you have /etc/bash.bashrc and ~/.bashrc, again independent.

For non-login non-interactive, the single point of entry is $BASH_ENV, if defined.

You can find the official description at the GNU Bash manual under Bash startup files.