What is non login interactive shell?

What is non login interactive shell?

non-login shell: A shell that is executed without logging in, necessary for this is a current logged in user. When you open a graphic terminal in gnome it is a non-login (interactive) shell.

What is non interactive shell?

A non-interactive shell is a shell that can not interact with the user. It’s most often run from a script or similar. This means that . It is always a good practice to use the full path for a command but even more so in non-interactive shells.

How to define non-interactive and non login shell environment?

The criteria interactive/non-interactive and login/non-login is a matter of the shell, or of the process that invokes it. You can read more of it in the man page The invocation of a new process is done via a couple of the kernel API functions, basically fork () and exec ().

How to set environment variables for non-interactive shell-stack?

This is what e.g. /etc/environment can do; but it does not force a piece of script to run at the time when a noninteractive shell is subsequently started (except of course if you use /etc/environment to set up BASH_ENV as described above). Thanks for contributing an answer to Stack Overflow!

How to run bashrc in a non-interactive shell?

In general, $HOME/.bashrc is executed for non-interactive login shells, but no script can be guaranteed to run for a non-interactive non-login shell. You can force it by setting (and exporting!) BASH_ENV from a parent shell to the name of a script which you want to execute when a non-interactive shell is started.

What’s the difference between an interactive and noninteractive shell?

The shell isn’t necessarily involved at all in creating the Oracle process, or creating any other process for that matter. The one and only difference between “interactive” and “noninteractive” processes, as far as the kernel is concerned, is whether your process has a controlling terminal.