astrodad / bash-config

bash-config

Unix/Linux environment configuration scripts for interactive and non-interactive shell startup varying by operating system and host.

Configurations are included for Bash, Git, HTop, Java, Python, Tmux, and Vim.

Installation

These files can be installed automatically with the setup.sh script. It automatically backs up files that it is replacing.

$ ./setup.sh

Differences between these files and the current system configuration can be found using the diff.sh script.

$ ./diff.sh

Java Configuration

Java configurations often vary by host and JDK version, so these are likely to never exactly match the base in this project.

So to configure individual systems.

1. Create or update the ~/.java-JDK*.cfg scripts to reflect the local JDK location.
2. Modify the appropriate local copy of ~/.java-X.cfg to point the ~/.java-JDK*.cfg script.

Bash Startup Notes

The bash startup sequence on login is:

1. Execute /etc/profile.
2. Execute the first file found of ~/.bash_profile, ~/.bash_login, or ~/.profile.

The behaviors included here are:

1. ~/.bash_profile will run ~/.bashrc.
2. ~/.bashrc will run ~/.bashrc.OS and ~/.bashrc.HOSTNAME.

Reference

From "man bash"

When bash is invoked as an interactive login shell, or as a non-interactive shell with the --login option, it first reads and executes commands from the file /etc/profile, if that file exists. After reading that file, it looks for ~/.bash_profile, ~/.bash_login, and ~/.profile, in that order, and reads and executes commands from the first one that exists and is readable. The --nopro‐file option may be used when the shell is started to inhibit this behavior.

When a login shell exits, bash reads and executes commands from the file ~/.bash_logout, if it exists.

When an interactive shell that is not a login shell is started, bash reads and executes commands from /etc/bash.bashrc and ~/.bashrc, if these files exist. This may be inhibited by using the --norc option. The --rcfile file option will force bash to read and execute commands from file instead of /etc/bash.bashrc and ~/.bashrc.