BASH Prompt and Aliases

prompt.bash

#BEGIN prompt code
function makePrompt {

    local pred="\[\033[0;31m\]"
    local pyellow="\[\033[1;33m\]"

    bold=$'\e[1m'; underline=$'\e[4m'; dim=$'\e[2m'; strickthrough=$'\e[9m'; blink=$'\e[5m'; reverse=$'\e[7m'; hidden=$'\e[8m'; normal=$'\e[0m'; black=$'\e[30m'; red=$'\e[31m'; green=$'\e[32m'; orange=$'\e[33m'; blue=$'\e[34m'; purple=$'\e[35m'; aqua=$'\e[36m'; gray=$'\e[37m'; darkgray=$'\e[90m'; lightred=$'\e[91m'; lightgreen=$'\e[92m'; lightyellow=$'\e[93m'; lightblue=$'\e[94m'; lightpurple=$'\e[95m'; lightaqua=$'\e[96m'; white=$'\e[97m'; default=$'\e[39m'; BLACK=$'\e[40m'; RED=$'\e[41m'; GREEN=$'\e[42m'; ORANGE=$'\e[43m'; BLUE=$'\e[44m'; PURPLE=$'\e[45m'; AQUA=$'\e[46m'; GRAY=$'\e[47m'; DARKGRAY=$'\e[100m'; LIGHTRED=$'\e[101m'; LIGHTGREEN=$'\e[102m'; LIGHTYELLOW=$'\e[103m'; LIGHTBLUE=$'\e[104m'; LIGHTPURPLE=$'\e[105m'; LIGHTAQUA=$'\e[106m'; WHITE=$'\e[107m'; DEFAULT=$'\e[49m';
    tabChar=$'\t'
    if [ "$UID" != "0" ]; then
        local SYMBOL="$"
        local UNAME_COLOR="\[\033[1;32m\]"
        local FINAL_COLOR="\[\033[0m\]"
        namecolor="$green"
    else
        local SYMBOL="#"
        local UNAME_COLOR="\[\033[1;31m\]"
        local FINAL_COLOR="\[\033[0;32m\]"
        namecolor="$red"
    fi
    interface=$(/usr/bin/tty | /bin/sed -e 's:/dev/::')
    PromCurTTY=$(tty | sed -e "s/.*tty\(.*\)/\1/")
    PromBLUE_BACK="\033[44m"
    BLUE_BACK="\[\033[44m\]"
    promusername="$USER"
    promhostname="$HOSTNAME"
    sedhome=$(sed 's/[][\.*^$(){}?+|/]/\\&/g' <<< "$HOME")
    if which acpi > /dev/null && acpi > /dev/null 2> /dev/null
    then
        acpiOk="1"
    else
        acpiOk="0"
    fi
    function prompt_command {
        returnStatus="$?"
        errortest=$(if [[ "$returnStatus" != "0" ]]; then echo "$returnStatus "; fi)
        if [[ "$nobar" == "true" ]]
        then
            return
        fi
        currentdir=$(pwd | sed "s/${sedhome}/~/g")
        if [[ "$acpiOk" == "1" ]]
        then
            battest=$(acpi | head -n 1 | tr ' ' '\n' | grep '%' | tr -d '%,')
            if [[ "$battest" == "100" ]]
            then
                battery=" "
            elif [[ "$battest" -gt "89" ]]
            then
                battery="$bold$green█$normal$BLACK"
            elif [[ "$battest" -gt "79" ]]
            then
                battery="$bold$green▇$normal$BLACK"
            elif [[ "$battest" -gt "69" ]]
            then
                battery="$bold$green▆$normal$BLACK"
            elif [[ "$battest" -gt "59" ]]
            then
                battery="$bold$green▅$normal$BLACK"
            elif [[ "$battest" -gt "49" ]]
            then
                battery="$bold$green▄$normal$BLACK"
            elif [[ "$battest" -gt "39" ]]
            then
                battery="$orange▃$normal$BLACK"
            elif [[ "$battest" -gt "29" ]]
            then
                battery="$bold$orange▂$normal$BLACK"
            else
                battery="$red▁$normal$BLACK"
            fi
        else
            battery=" "
        fi
        stopped=$(jobs -s | wc -l | tr -d " ")
        running=$(jobs -r | wc -l | tr -d " ")
        dateget=$(date +"%a %b %d %H:%M")
        if [[ "$(stat -c "%b" .)" -lt "100" ]]
        then
            filecount="$(ls -1 | wc -l | tr -d ' ') files "
            size="$(ls -lah | grep -m 1 total | /bin/sed "s/total //") "
        else
            filecount=""
            size=""
        fi
        length=$(echo "$promusername@$promhostname on $interface jobs:$running$stopped $filecount$size  $dateget" | wc -c)
        fulllength=$(echo "$promusername@$promhostname on $interface jobs:$running$stopped $filecount$size$currentdir   $dateget" | wc -c)
        if [[ "$fulllength" -gt "$COLUMNS" ]]
        then
            spaces=$(printf "%$((COLUMNS-length))s\n")
            echo -en "\e7\e[0;$((LINES))r\e8\n\n\e7\e[0;$((LINES-2))r\e8\e[1A"
            echo -en "\033[s\
            \e[$((LINES-1));0f\033[K"
            echo -en "$BLACK$bold$namecolor"
            echo -en "$promusername@$promhostname$normal$white$BLACK on $bold$blue$interface$red jobs:$green$running$red$stopped$aqua $filecount$orange$size$normal$BLACK$spaces$battery $purple$dateget\033[K\n$normal$BLACK$green$currentdir\
\033[K\
\033[u\033[1A\033[1B$default$DEFAULT"
            lastMode="lg"
        else
            echo -en "\e7\e[0;$((LINES))r\e8\n"
            if [[ "$lastMode" == "lg" ]]
            then
                echo -en "\e[K"
            fi
            spaces=$(printf "%$((COLUMNS-fulllength))s\n")
            echo -en "\e7\e[0;$((LINES-1))r\e8\e[1A"
            echo -en "\033[s\
            \e[$((LINES));0f\033[K"
            echo -en "$BLACK$bold$namecolor"
            echo -en "$promusername@$promhostname$normal$white$BLACK on $bold$blue$interface$red jobs:$green$running$red$stopped$aqua $filecount$orange$size$normal$BLACK$green$currentdir $spaces$battery $purple$dateget\
\033[K\
\033[u\033[1A\033[1B$default$DEFAULT"
            lastMode="sm"
        fi
        echo "$(date +%Y-%m-%d--%H-%M-%S)$tabChar$(hostname)$tabChar$PWD$tabChar$(history 1)" >> ~/.full_history

    }

    export PROMPT_COMMAND=prompt_command

    #Custom PS1 string (prompt)
    PS1="$pred\$errortest$pyellow\! $UNAME_COLOR$SYMBOL$FINAL_COLOR "
    export PS1;
}

makePrompt
function nobar {
    echo -en "\e7\e[0;$((LINES))r\e8\n"
    if [[ "$nobar" == "true" ]]
    then
        nobar=
    else
        nobar=true
    fi
}
#END prompt code

#BEGIN env changes
bind '"\e[A": history-search-backward'
bind '"\e[B": history-search-forward'
HISTSIZE=300000
HISTFILESIZE=300000
shopt -s histappend
shopt -s checkwinsize

alias sudo="sudo "
if which most > /dev/null
then
    export PAGER=most
fi
function cd {
    builtin cd "${@}"
    if [[ "$(stat -c "%b" .)" -lt "100" ]]
    then
        if [ "$( ls -C -w $COLUMNS | wc -l )" -gt 30 ] ; then
            ls -C -w $COLUMNS --color=always | awk 'NR < 16 { print }; NR == 16 { print " (... snip ...)" }; { buffer[NR % 14] = $0 } END { for( i = NR + 1; i <= NR+14; i++ ) print buffer[i % 14] }'
        else
            ls
        fi
    fi
}
#END env changes

#BEGIN general aliases/functions
function nocap() {
    rename 'y/A-Z/a-z/' *
}
function nospace() {
    rename 's/ /_/g' *
}
function fixdir() {
    rename 'y/A-Z/a-z/' *
    rename 's/ /_/g' *
}
function fhist {
    cat ~/.full_history | grep "$@" | tail
}
alias ..='cd ..'
alias ins='sudo apt install'
alias upgrade='sudo apt upgrade'
alias hist='history | grep -i '
function mkcd() {
    mkdir -p "$1" && cd "$1"
}
alias ll='ls -alF'  #'list long'
alias la='ls -A'   #'list all'
alias l='ls -CF'   #'list'
alias lcr='ls -cr' #'list changed recently'
alias lc='ls -c'   #'list changed'
# Find files of the specified types, and grep for the specified token, ignoring .svn directories. Additional grep options can be passed in
# in parameter $3, but multiple params must be quoted into a single string (e.g., "-i -C3"). Note that this function is not meant to be
# called directly, but rather to serve as a base for other filetype-specific functions/aliases, such as findInSource, etc.
function findInTypes {
   types=$(echo $2 | tr "," "\n")
   cmd="find . \\( -path '*/.svn' -prune -false \\) -o -type f \\("
   sep=" "

   for t in $types; do
     cmd="${cmd}${sep}-name '$t'"
     sep=" -o "
   done

   cmd="$cmd \\) -exec grep $3 \"$1\" {} /dev/null \\;"

   eval $cmd
}
# Grep on all "known" file types. Its up to you to define what those are.
function findInAll {
   findInTypes "$1" "*.c,*.cpp,*.h,*.xml,*.dxml,*.xsl,*.java,*.js,*.log,Makefile,*.mk,*.py,*.sh,*.txt" "$2"
}
alias fa='findInAll'
function gcode() { grep --color=always -rnC3 -- "$@" . | less -R; }
function up() { pushd .. > /dev/null; }
function down() { popd > /dev/null; }
function launch {
    ( $* &> /dev/null & )
}
alias duf='du -sk * | sort -n | while read size fname; do for unit in k M G T P E Z Y; do if [ $size -lt 1024 ]; then echo -e "${size}${unit}\t${fname}"; break; fi; size=$((size/1024)); done; done'
function ip-get {
    echo -n "Wired:    "
    ip addr show eth0 | grep inet | awk '{print $2}' | tr "\n" " " | cut -f1 -d"/"
    echo -n "Wireless: "
    ip addr show wlan0 | grep inet | awk '{print $2}' | tr "\n" " " | cut -f1 -d"/"
    echo -n "Public:   "
    curl http://icanhazip.com/
}
alias passwordgen="pwgen --no-capitalize 20 1"
function lq {
    nohup "$@"&exit
}
function manpdf {
    man -t $1 | ps2pdf14 - $1.pdf
}
alias axel="axel -a "
function rmedir {
    cd "$1"
    find . -type d -empty -exec rmdir {} \;
}
alias watchfile="tail -fs 0.2 -n $LINES"
function pp {
    # remember output, prevent different clipboard contents
    # after choosing to execute
    script=`xclip -o`
    cat -A <<< "$script"
    echo -ne "\nExecute? (y/n): "
    read execute
    # only execute when 'y' was answered
    # all other input is ignored
    if [[ $execute == "y" ]]; then
        eval $script
    fi
}
alias calc='python3 -ic "from math import *; import cmath"'

alias st="git status"
alias add="git add"
alias push="git push"
alias pull="git pull"
alias checkout="git checkout"
function commit {
    if [[ "$1" == "all" ]]
    then
        git commit -am "$2"
    elif [[ "$1" != "" ]]
    then
        git commit -m "$1"
    else
        git commit
    fi
}

function c {
    while read -r _ dir
    do
        if [[ -e "$dir" ]]
        then
            echo "$dir"
            cd "$dir"
            break
        fi
    done < <(cat ~/.full_history | tail -n 10000 \
        | cut -f 3 | sort | uniq -dc | sort -hr | grep "/$1$")
}

function _c {
    local IFS=$'\n'
    COMPREPLY=( $(cat ~/.full_history | tail -n 10000 \
        | cut -f 3 | sort | uniq -dc | sort -hr \
        | sed 's/.*\///g' | grep "^$2") )
}
complete -F _c c

# Clear info bar before running less.
function less { echo -en "\e7\e[0;$((LINES))r\e8\n"; /usr/bin/less "$@"; }

#END general aliases/functions

Hey, this is great! thanks for sharing.
Few questions:

1. Everytime I maximize my terminal i need the promp doent seem to adjust itself. Is there a way I can fix that?
2. What was the thought behind having the prompt as the command number?

It should update the size with each command invocation. As for why the prompt is the command number, for some reason I thought it would be useful at the time. It hasn’t been.