Section IV: Tailor-made as a OS
4.1. System initialization related files
There are two important files in DOS - Autoexec.bat and Config.sys. When DOS is started,
These two files are responsible for some system settings, such as setting environment variables Path, Files, etc., even
Calling other programs that must be loaded when booting.
There are also some similar files in Linux, but some are quite danger; you really understand
Before you have to do things, please don't touch it. In any case, I still have to tell you those who need special caution.
Archive:
FILES Notes
/ etc / inittab don't touch for now!
/etc/rc.d/* DITTO
If you want to do it, set the PATH or other environment variables, or modify the message when login, call one
Program, the following probably you want:
FILES Notes
/ etc / issue sets pre-login message setting the message before login
/ etc / motord sets post-login message sets login
/ etc / profile sets path and other variables, etc. Setting the environment
variable
/Home/your_home/.profile does whatver you want here you can join you at will
of
If the last file (~ / .profile) exists, (noted that it is a hidden file), then after you login
Its internal orchestration will be executed.
Example - see this .profile:
# I am a comment
echo environment:
Printenv | More # Equivalent of Command Set Under DOS
Alias D = 'ls -l' # easy to understand what an alias is
Alias Up = 'cd ..'
Echo "I Remind You That That IS" $ PATH
Echo "Have a Good Day," $ logname
Path and Logname, as you expect, it is two environment variables.
4.2. Program initialization setting file
Under Linux, all things can be arranged in accordance with your requirements. Most programs have
Their initialization settings can be modified by you. Usually, they are all .prognamerc
Type exists in the home directory. Here, first you may need to contact the setting file:
..xinitrc: Used to initialize X Window System.
..fvwmrc: Initialize FVWM this Window Manager. You can
/usr/lib/x11/fvwm/system.fvwmrc finds an example.
..xfm / *: Setting file for XFM (a File Manager).
..Xdefault: Used by RXVT - a terminal simulation program.
For these set files, or other files you will encounter, check Man Page.
