################################################################################
#
# Bash configuration for interactive shells.
#
# ~/.bashrc
#
# More info: https://www.librobert.net/book/internet
#
################################################################################
#
# Copyright (c) 2019 Robert LA LAU < https://www.librobert.net/ >
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
#    this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
#    this list of conditions and the following disclaimer in the documentation
#    and/or other materials provided with the distribution.
#
# 3. Neither the name of the copyright holder nor the names of its contributors
#    may be used to endorse or promote products derived from this software
#    without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
################################################################################
#
# Save this file as .bashrc in each user's home directory (including root)
# or merge them, if a file of that name already exists.
#
# Also save this file as /usr/share/skel/dot.bashrc (FreeBSD)
# or /etc/skel/.bashrc (Linux), or merge them.
#
# See bash(1) for documentation.
#
################################################################################

# Do nothing if this is not an interactive shell.
[ -z "${-//[^i]/}" ] && return

# This makes the shell a bit more user friendly.
shopt -s histappend checkwinsize
export FIGNORE='.bak:~'
export HISTCONTROL=ignoreboth
export LC_COLLATE=C

# It's practical to have a personal directory for scripts.
[ -d "${HOME}/bin" ] && export PATH="${HOME}/bin:${PATH}"

# The default application for reading text files.
if [ -x `which less`]; then
	export PAGER=less
else 
	export PAGER=more
fi

# The default application for editing text files.
if [ -x `which nano` ]; then
	export EDITOR=nano
else
	export EDITOR=vi
fi

# Command aliases.
alias ll='ls -lF'
alias lsl='ls -laF'
alias lsc='ls -1 | wc -l | sed -e "s/[[:blank:]]//g"'
alias lsca='ls -A1 | wc -l | sed -e "s/[[:blank:]]//g"'
#alias ls='ls -F'

# Change the prompt, and the title for X terminals.
# See also: https://www.howtogeek.com/307701/how-to-customize-and-colorize-your-bash-prompt/
if [ "${PS1}" ]; then

	# User, hostname and path in the title bar.
	case ${TERM} in
		xterm*|rxvt*|Eterm|eterm)
			PROMPT_COMMAND='echo -ne "\033]0;${USER}@${HOSTNAME%%.*}:${PWD/$HOME/~}\007"'
			;;
		screen)
			PROMPT_COMMAND='echo -ne "\033_(screen)${USER}@${HOSTNAME%%.*}:${PWD/$HOME/~}\033\\"'
			;;
		*)
			;;
	esac

	# User, hostname and path in the prompt; colored name for root user.
	if [ "`id -u`" = "0" ]; then
		PS1='\[\033[41m\]\[\033[01;37m\]\u@\h\[\033[00m\]:\w # '
	else
		PS1='\u@\h:\w $ '
	fi
fi

# Example function.
# After this file has been loaded, type 'example 1 two ...' (without the quotes) on the command line.
example() {
	first=$1
	shift
	rest=$@
	echo "First argument was '${first}'."
	echo "The rest of the arguments was '${rest}'."
}