What this code block does:

I guess I just got tired of re-configuring my linux distros each time I installed a new one from scratch.
(copy and paste code below)

What this code block does:

create .nanorc

set constantshow

Always display the cursor position at the bottom of the editor

set linenumbers

Show line numbers on the left side of the editor

set numbercolor cyan,black

Set the color of the line numbers to cyan text on a black background

create .screenrc

hardstatus on

Turn on the hardstatus line

hardstatus alwaysfirstline

Place the hardstatus line at the top of the screen

hardstatus string '%{= wk}Screen: %S %= [%c]'

Customize the hardstatus line format
%{= wk} - Set text to white on black background
Screen: %S - Display "Screen: " followed by the session name (%S)
%= - Push everything after this to the far right
[%c] - Display current time in HH:MM format, surrounded by square brackets

defscrollback 10000

Set the scrollback buffer size to 10000 lines

defutf8 on

Enable UTF-8 support

startup_message off

Disable the startup message when screen starts

create .bashrc

Interactive Shell Check

case $- in
i) ;;
*) return;;
esac

case $- in ... esac: This checks the current shell options.
i) ;;: If the shell is interactive (i is present in $-), do nothing (;;).
*) return;;: If the shell is not interactive, exit the script (return).

History Control

HISTCONTROL=ignoreboth

HISTCONTROL=ignoreboth: Sets the shell history to ignore duplicate entries and commands that start with a space.

Append to History

shopt -s histappend

shopt -s histappend: Enables appending to the history file, rather than overwriting it.

History Size

HISTSIZE=1000
HISTFILESIZE=2000

HISTSIZE=1000: Sets the number of commands to remember in the command history.
HISTFILESIZE=2000: Sets the maximum number of lines contained in the history file.

Check Window Size

shopt -s checkwinsize

shopt -s checkwinsize: After each command, checks the window size and updates LINES and COLUMNS if necessary.

Debian Chroot

if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; then
debian_chroot=$(cat /etc/debian_chroot)
fi

Checks if the debian_chroot variable is unset or empty and if /etc/debian_chroot is readable.
If both conditions are met, it sets debian_chroot to the contents of /etc/debian_chroot.

Terminal Color Check

case "$TERM" in
xterm-color|*-256color) color_prompt=yes;;
esac

Checks if the terminal supports color (xterm-color or *-256color).
If so, sets color_prompt=yes.

Force Color Prompt

force_color_prompt=yes

Forces the color prompt to be enabled.

Color Prompt Setup

if [ -n "$force_color_prompt" ]; then
if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
color_prompt=yes
else
color_prompt=
fi
fi

Checks if force_color_prompt is set.
If tput exists and can set terminal colors, it sets color_prompt=yes.
Otherwise, it sets color_prompt to empty.

PS1 Prompt Definition

if [ "$color_prompt" = yes ]; then
if [ "$(id -u)" -eq 0 ]; then
PS1='${debian_chroot:+($debian_chroot)}[\033[5;31m]\u\e[25m@\h[\033[00m]:[\033[01;34m]\w #[\033[00m] '
else
PS1='${debian_chroot:+($debian_chroot)}[\033[01;32m]\u@\h[\033[00m]:[\033[01;34m]\w \$[\033[00m] '
fi
else
if [ "$(id -u)" -eq 0 ]; then
PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w # '
else
PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w $ '
fi
fi
unset color_prompt force_color_prompt

Sets the prompt (PS1) based on whether color_prompt is set.
If the user is root (id -u equals 0), the prompt ends with #, otherwise with $.
The colors are different for root (\033[01;31m for red) and non-root users (\033[01;32m for green).

Xterm Title

case "$TERM" in
xterm*|rxvt*)
PS1="[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a]$PS1"
;;
*)
;;
esac

If the terminal is xterm or rxvt, sets the terminal title to user@host: dir.

Enable Color Support for ls and Define Aliases

if [ -x /usr/bin/dircolors ]; then test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)" alias ls='ls --color=auto' alias grep='grep --color=auto' alias fgrep='fgrep --color=auto' alias egrep='egrep --color=auto' fi

Checks if dircolors exists and is executable.
If ~/.dircolors is readable, evaluates it for setting up color definitions.
Sets up color aliases for ls, grep, fgrep, and egrep.

Define diffy Function

diffy() {
diff -y -B <(grep -vE '^\s*#' "$1") <(grep -vE '^\s*#' "$2")
}

Defines the diffy function to compare two files, ignoring lines that start with a comment (#) or are empty.

Define catta Function (sorry about the non-standard formatting - github was giving me grief)

catta() {  
    if [[ -n "$1" ]]; then
        for texts in $(file "$1"* | grep text | awk '{print $1}' | sed 's/.$\//' ); do  
            echo -e "\n\n\e[4m\e[93m${texts}\e[0m\n"  
            cat "${texts}"  
        done  
    else  
        for texts in $(file ./* | grep text | awk '{print $1}' | sed 's/.$\//' ); do  
            echo -e "\n\n\e[4m\e[93m${texts}\e[0m\n"  
            cat "$texts"  
        done  
    fi  
}

Defines the catta function to display contents of text files.
If a file pattern is provided, it processes files matching the pattern.
Otherwise, it processes all text files in the current directory.
Each file's name is highlighted and separated for readability.

Define Aliases

alias ll='ls -l'
alias la='ls -la'
alias lh='ls -lah'
alias cd..='cd ..' alias go='apt update -y && apt upgrade -y && apt dist-upgrade && apt full-upgrade'

Sets up aliases for common ls commands and a cd shortcut for a common typo I make as wlel as using go to do all the updates it can.

Load Additional Aliases

if [ -f ~/.bash_aliases ]; then
. ~/.bash_aliases
fi

If ~/.bash_aliases exists, sources it to load additional aliases.

Enable Programmable Completion

if ! shopt -oq posix; then
if [ -f /usr/share/bash-completion/bash_completion ]; then
. /usr/share/bash-completion/bash_completion
elif [ -f /etc/bash_completion ]; then
. /etc/bash_completion
fi
fi

If the shell is not in POSIX mode, checks for bash_completion files and sources them to enable programmable completion features.

Add Curl and Sudo (sorry about the non-standard formatting - github was giving me grief)

Checks if we can resolve names if not, adds Cloudflare and Quad9 name servers If we're root, installs Curl and Sudo

if [[ $(ping -c1 -q www.google.com &>/dev/null; echo $?) -ne 0 ]]; then  
  if [[ $(grep -vcE '^$|^#' /etc/resolv.conf) -eq 0 ]]; then  
    echo -e "\nnameserver 1.1.1.2\nnameserver 9.9.9.9" >> /etc/resolv.conf  
    sleep 3  
    if [[ $(ping -c1 -q www.google.com &>/dev/null; echo $?) -ne 0 ]]; then  
      echo -e "    ALERT!\nAdded Cloudflare and Quad9 nameservers, but still not resolving domain names!"  
     else  
       [[ $(id -u) -eq "0" ]] && apt install -y curl sudo  
    fi  
  fi  
fi

.bash_profile

Link

COPY PASTA

cat <<"EOF" > ~/.bashrc
case $- in
    *i*) ;;
      *) return;;
esac
HISTCONTROL=ignoreboth
shopt -s histappend
HISTSIZE=1000
HISTFILESIZE=2000
shopt -s checkwinsize
if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; then
    debian_chroot=$(cat /etc/debian_chroot)
fi
case "$TERM" in
    xterm-color|*-256color) color_prompt=yes;;
esac
force_color_prompt=yes
if [ -n "$force_color_prompt" ]; then
    if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
        color_prompt=yes
    else
        color_prompt=
    fi
fi
if [ "$color_prompt" = yes ]; then
    if [ "$(id -u)" -eq 0 ]; then
        PS1='${debian_chroot:+($debian_chroot)}\[\033[5;31m\]\u\[\e[25m\]@\h\[\033[00m\]:\[\033[01;34m\]\w #\[\033[00m\] '
    else
        PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w \$\[\033[00m\] '
    fi
else
    if [ "$(id -u)" -eq 0 ]; then
        PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w # '
    else
        PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w \$ '
    fi
fi
unset color_prompt force_color_prompt
case "$TERM" in
xterm*|rxvt*)
    PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1"
    ;;
*)
    ;;
esac
if [ -x /usr/bin/dircolors ]; then
    test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
    alias ls='ls --color=auto'
    alias grep='grep --color=auto'
    alias fgrep='fgrep --color=auto'
    alias egrep='egrep --color=auto'
fi
diffy() {
    diff -y -B <(grep -vE '^\s*#' "$1") <(grep -vE '^\s*#' "$2")
}
catta() {
    if [[ -n "$1" ]]; then
        for texts in $(file "$1"* | grep text | awk '{print $1}' | sed 's/.$//'); do
            echo -e "

    \e[4m\e[93m${texts}\e[0m
"
            cat "${texts}"
       done
    else
        for texts in $(file ./* | grep text | awk '{print $1}' | sed 's/.$//'); do
            echo -e "

    \e[4m\e[93m${texts}\e[0m
"
           cat "$texts"
       done
    fi
}
alias ll='ls -l'
alias la='ls -la'
alias lh='ls -lah'
alias cd..='cd ..'
alias update='apt update -y && apt upgrade -y && apt dist-upgrade && apt full-upgrade'
if [ -f ~/.bash_aliases ]; then
    . ~/.bash_aliases
fi
if ! shopt -oq posix; then
  if [ -f /usr/share/bash-completion/bash_completion ]; then
    . /usr/share/bash-completion/bash_completion
  elif [ -f /etc/bash_completion ]; then
    . /etc/bash_completion
  fi
fi
EOF

cat <<"EOF" > ~/.nanorc
set constantshow
set linenumbers
set numbercolor cyan,black
EOF

INTERFACE=""
IPADD=""
IPMASK=""
IPGATE=""

GETINTERFACE() {
  INTERFACE=$(cat /etc/network/interfaces | grep -E '^iface.*dhcp$' | awk '{print $2}')
}

GETMASK() {
  read -rp "
  What should the netmask be (IP address, not CIDR)?
" IPMASK
  if [[ ! $IPMASK =~ ([0-9]+\.){3}[0-9]{1,3} ]]; then
    echo "Please use x.x.x.x format to enter net mask."
    GETMASK
  fi
}

GETGATE() {
  read -rp "
  What should the Gateway be?
" IPGATE
  if [[ ! $IPGATE =~ ([0-9]+\.){3}[0-9]{1,3} ]]; then
    echo "Please use x.x.x.x format to enter gateway address."
    GETGATE
  fi
}

GETIP() {
  echo -e "  Current IP is: $(ip a | grep inet | gpre -vE 'host lo|inet6' | awk '{print $2}')"
  read -rp "
  What should the IP be for this host?
" IPADD
  if [[ ! $IPADD =~ ([0-9]+\.){3}[0-9]{1,3} ]]; then #I know, I know, this regex is utter drivel and needs to be improved.
    echo "Yeah, no, give me a valid IPv4 address (no netmask)."
    GETIP
  fi
}

SETSTATIC() {
  sed -i "s/iface $INTERFACE inet dhcp/iface $INTERFACE inet static/" /etc/network/interfaces
  echo -e "    address $IPADD\n    netmask $IPMASK\n    gateway $IPGATE" >> /etc/network/interfaces
}

if [[  $(id -u) -eq "0" ]]; then
  if grep -q dhcp /etc/network/interfaces; then
    GETINTERFACE
    GETIP
    GETMASK
    GETGATE
    SETSTATIC
  fi
fi 

if [[ $(ping -c1 -q www.google.com &>/dev/null; echo $?) -ne 0 ]]; then
  if [[ $(grep -vcE '^$^#' /etc/resolv.conf) -eq 0 ]]; then
    echo -e "\nnameserver 1.1.1.2\nnameserver 9.9.9.9" >> /etc/resolv.conf
    sleep 3
    if [[ $(ping -c1 -q www.google.com &>/dev/null; echo $?) -ne 0 ]]; then
      echo -e "    ALERT!
Added Cloudflare and Quad9 nameservers, but still not resolving domain names!"
     else
       [[ $(id -u) -eq "0" ]] && apt update -y && apt upgrade -y && apt install -y curl sudo
    fi
  fi
fi

source ~/.bashrc

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Repository files navigation

What this code block does:

create .nanorc

create .screenrc

create .bashrc

Interactive Shell Check

History Control

Append to History

History Size

Check Window Size

Debian Chroot

Terminal Color Check

Force Color Prompt

Color Prompt Setup

PS1 Prompt Definition

Xterm Title

Enable Color Support for ls and Define Aliases

Define diffy Function

Define catta Function (sorry about the non-standard formatting - github was giving me grief)

Define Aliases

Load Additional Aliases

Enable Programmable Completion

Add Curl and Sudo (sorry about the non-standard formatting - github was giving me grief)

.bash_profile

COPY PASTA

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Name		Name	Last commit message	Last commit date
Latest commit History 118 Commits
apt		apt
work		work
.bashrc		.bashrc
.nanorc		.nanorc
.screenrc		.screenrc
README.md		README.md
bashcolours.sh		bashcolours.sh

Folders and files

Latest commit

History

Repository files navigation

What this code block does:

create .nanorc

create .screenrc

create .bashrc

Interactive Shell Check

History Control

Append to History

History Size

Check Window Size

Debian Chroot

Terminal Color Check

Force Color Prompt

Color Prompt Setup

PS1 Prompt Definition

Xterm Title

Enable Color Support for ls and Define Aliases

Define diffy Function

Define catta Function (sorry about the non-standard formatting - github was giving me grief)

Define Aliases

Load Additional Aliases

Enable Programmable Completion

Add Curl and Sudo (sorry about the non-standard formatting - github was giving me grief)

.bash_profile

COPY PASTA

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