who calls /etc/inputrc in centos 6.5?
 

hello, I am learning cenos 6.5 now and I am learning bash.
By google, I find that in /etc/profile, there should be this:
if [ -z "$INPUTRC" -a ! -f "$HOME/.inputrc" ]; then
INPUTRC=/etc/inputrc
fi

But I find no these line in my /etc/profle
after echo $INPUTRC, I find that it is empty.

Is it normal like this?
Thank you very much.

Disclaimer: I am not a CentOS user, so it is possible (but not likely) it does something strange... but...

From man bash:

So if INPUTRC is not set a program that uses readline will try to load ~/.inputrc by default. Does ~/.inputrc exist? If so, does it load /etc/inputrc?

Otherwise, setting INPUTRC in /etc/profile is a common way of doing that, but it could be anywhere, or nowhere, along the initialization chain (see man bash: INITIALIZATION for how that works).

No, there is no ~/.inputrc, and $INPUTRC is defined nowhere

Then it is probably not being loaded.

Oh yes, welcome to LQ!

/etc/inputrc is used by readline package. It uses it to configure itself. And the line in /etc/profile should have export INPUTRC that is why echo outputs none.

So it is not normal that there is no INPUTRC lines in the /etc/profile and I should add these myself? But why they are not included in /etc/profile? I just installed centos and did not do any change to any system file.

The readline library interprets the default file /etc/inputrc. So if that file is present, then no need to set a variable.

Read man page and info page for more info.