bashrc

Interesting profile:

```
# ~/.bashrc
#

# If not running interactively, don't do anything
[[ $- != *i* ]] && return

alias ls='ls --color=auto'
alias ll='ls -al --color=auto'

# ssh connection sections goes here:


echo 'For multiple tabs: "CTRL + (" and "CTRL + )"'


### Profile Customization ###

#di = directory

LS_COLORS=$LS_COLORS:'di=1;33'; export LS_COLORS

#Blue = 34
#Green = 32
#Light Green = 1;32
#Cyan = 36
#Red = 31
#Purple = 35
#Brown = 33
#Yellow = 1;33
#Bold White = 1;37
#Light Grey = 0;37
#Black = 30
#Dark Grey= 1;30

#0   = default colour
#1   = bold
#4   = underlined
#5   = flashing text (disabled on some terminals)
#7   = reverse field (exchange foreground and background color)
#8   = concealed (invisible)

# All Possbile Colors

#30  = black
#31  = red
#32  = green
#33  = orange
#34  = blue
#35  = purple
#36  = cyan
#37  = grey
#90  = dark grey
#91  = light red
#92  = light green
#93  = yellow
#94  = light blue
#95  = light purple
#96  = turquoise
#97  = white



PS1='[\u@\h \W]\$ '

################################################################################
##  FUNCTIONS                                                                 ##
################################################################################

##
##      ARRANGE $PWD AND STORE IT IN $NEW_PWD
##      * The home directory (HOME) is replaced with a ~
##      * The last pwdmaxlen characters of the PWD are displayed
##      * Leading partial directory names are striped off
##              /home/me/stuff -> ~/stuff (if USER=me)
##              /usr/share/big_dir_name -> ../share/big_dir_name (if pwdmaxlen=20)
##
##      Original source: WOLFMAN'S color bash promt
##      https://wiki.chakralinux.org/index.php?title=Color_Bash_Prompt#Wolfman.27s
##
bash_prompt_command() {
        # How many characters of the $PWD should be kept
        local pwdmaxlen=25

        # Indicate that there has been dir truncation
        local trunc_symbol=".."

        # Store local dir
        local dir=${PWD##*/}

        # Which length to use
        pwdmaxlen=$(( ( pwdmaxlen < ${#dir} ) ? ${#dir} : pwdmaxlen ))

        NEW_PWD=${PWD/#$HOME/\~}

        local pwdoffset=$(( ${#NEW_PWD} - pwdmaxlen ))

        # Generate name
        if [ ${pwdoffset} -gt "0" ]
        then
                NEW_PWD=${NEW_PWD:$pwdoffset:$pwdmaxlen}
                NEW_PWD=${trunc_symbol}/${NEW_PWD#*/}
        fi
}




##
##      GENERATE A FORMAT SEQUENCE
##
format_font()
{
        ## FIRST ARGUMENT TO RETURN FORMAT STRING
        local output=$1


        case $# in
        2)
                eval $output="'\[\033[0;${2}m\]'"
                ;;
        3)
                eval $output="'\[\033[0;${2};${3}m\]'"
                ;;
        4)
                eval $output="'\[\033[0;${2};${3};${4}m\]'"
                ;;
        *)
                eval $output="'\[\033[0m\]'"
                ;;
        esac
}



##
## COLORIZE BASH PROMT
##
bash_prompt() {

        ############################################################################
        ## COLOR CODES                                                            ##
        ## These can be used in the configuration below                           ##
        ############################################################################

        ## FONT EFFECT
        local      NONE='0'
        local      BOLD='1'
        local       DIM='2'
        local UNDERLINE='4'
        local     BLINK='5'
        local    INVERT='7'
        local    HIDDEN='8'


        ## COLORS
        local   DEFAULT='9'
        local     BLACK='0'
        local       RED='1'
        local     GREEN='2'
        local    YELLOW='3'
        local      BLUE='4'
        local   MAGENTA='5'
        local      CYAN='6'
        local    L_GRAY='7'
        local    D_GRAY='60'
        local     L_RED='61'
        local   L_GREEN='62'
        local  L_YELLOW='63'
        local    L_BLUE='64'
        local L_MAGENTA='65'
        local    L_CYAN='66'
        local     WHITE='67'


        ## TYPE
        local     RESET='0'
        local    EFFECT='0'
        local     COLOR='30'
        local        BG='40'


        ## 256 COLOR CODES
        local NO_FORMAT="\[\033[0m\]"
        local ORANGE_BOLD="\[\033[1;38;5;208m\]"
        local TOXIC_GREEN_BOLD="\[\033[1;38;5;118m\]"
        local RED_BOLD="\[\033[1;38;5;1m\]"
        local CYAN_BOLD="\[\033[1;38;5;87m\]"
        local BLACK_BOLD="\[\033[1;38;5;0m\]"
        local WHITE_BOLD="\[\033[1;38;5;15m\]"
        local GRAY_BOLD="\[\033[1;90m\]"
        local BLUE_BOLD="\[\033[1;38;5;74m\]"





        ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  
          ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##
        ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ## 



        ##                          CONFIGURE HERE                                ##



        ############################################################################
        ## CONFIGURATION                                                          ##
        ## Choose your color combination here                                     ##
        ############################################################################
        local FONT_COLOR_1=$WHITE
        local BACKGROUND_1=$BLUE
        local TEXTEFFECT_1=$BOLD

        local FONT_COLOR_2=$WHITE
        local BACKGROUND_2=$L_BLUE
        local TEXTEFFECT_2=$BOLD

        local FONT_COLOR_3=$D_GRAY
        local BACKGROUND_3=$WHITE
        local TEXTEFFECT_3=$BOLD

        local PROMT_FORMAT=$BLUE_BOLD


        ############################################################################
        ## EXAMPLE CONFIGURATIONS                                                 ##
        ## I use them for different hosts. Test them out ;)                       ##
        ############################################################################

        ## CONFIGURATION: BLUE-WHITE
        if [ "$HOSTNAME" = dell ]; then
                FONT_COLOR_1=$WHITE; BACKGROUND_1=$BLUE; TEXTEFFECT_1=$BOLD
                FONT_COLOR_2=$WHITE; BACKGROUND_2=$L_BLUE; TEXTEFFECT_2=$BOLD
                FONT_COLOR_3=$D_GRAY; BACKGROUND_3=$WHITE; TEXTEFFECT_3=$BOLD
                PROMT_FORMAT=$CYAN_BOLD
        fi

        ## CONFIGURATION: BLACK-RED
        if [ "$HOSTNAME" = giraff6 ]; then
                FONT_COLOR_1=$WHITE; BACKGROUND_1=$BLACK; TEXTEFFECT_1=$BOLD
                FONT_COLOR_2=$WHITE; BACKGROUND_2=$D_GRAY; TEXTEFFECT_2=$BOLD
                FONT_COLOR_3=$WHITE; BACKGROUND_3=$RED; TEXTEFFECT_3=$BOLD
                PROMT_FORMAT=$RED_BOLD
        fi

        ## CONFIGURATION: RED-BLACK
        #FONT_COLOR_1=$WHITE; BACKGROUND_1=$RED; TEXTEFFECT_1=$BOLD
        #FONT_COLOR_2=$WHITE; BACKGROUND_2=$D_GRAY; TEXTEFFECT_2=$BOLD
        #FONT_COLOR_3=$WHITE; BACKGROUND_3=$BLACK; TEXTEFFECT_3=$BOLD
        #PROMT_FORMAT=$RED_BOLD

        ## CONFIGURATION: CYAN-BLUE
        if [ "$HOSTNAME" = sharkoon ]; then
                FONT_COLOR_1=$BLACK; BACKGROUND_1=$L_CYAN; TEXTEFFECT_1=$BOLD
                FONT_COLOR_2=$WHITE; BACKGROUND_2=$L_BLUE; TEXTEFFECT_2=$BOLD
                FONT_COLOR_3=$WHITE; BACKGROUND_3=$BLUE; TEXTEFFECT_3=$BOLD
                PROMT_FORMAT=$CYAN_BOLD
        fi

        ## CONFIGURATION: GRAY-SCALE
        if [ "$HOSTNAME" = giraff ]; then
                FONT_COLOR_1=$WHITE; BACKGROUND_1=$BLACK; TEXTEFFECT_1=$BOLD
                FONT_COLOR_2=$WHITE; BACKGROUND_2=$D_GRAY; TEXTEFFECT_2=$BOLD
                FONT_COLOR_3=$WHITE; BACKGROUND_3=$L_GRAY; TEXTEFFECT_3=$BOLD
                PROMT_FORMAT=$BLACK_BOLD
        fi

        ## CONFIGURATION: GRAY-CYAN
        if [ "$HOSTNAME" = light ]; then
                FONT_COLOR_1=$WHITE; BACKGROUND_1=$BLACK; TEXTEFFECT_1=$BOLD
                FONT_COLOR_2=$WHITE; BACKGROUND_2=$D_GRAY; TEXTEFFECT_2=$BOLD
                FONT_COLOR_3=$BLACK; BACKGROUND_3=$L_CYAN; TEXTEFFECT_3=$BOLD
                PROMT_FORMAT=$CYAN_BOLD
        fi


        ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  
          ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##
        ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ##  ## 




        ############################################################################
        ## TEXT FORMATING                                                         ##
        ## Generate the text formating according to configuration                 ##
        ############################################################################

        ## CONVERT CODES: add offset
        FC1=$(($FONT_COLOR_1+$COLOR))
        BG1=$(($BACKGROUND_1+$BG))
        FE1=$(($TEXTEFFECT_1+$EFFECT))

        FC2=$(($FONT_COLOR_2+$COLOR))
        BG2=$(($BACKGROUND_2+$BG))
        FE2=$(($TEXTEFFECT_2+$EFFECT))

        FC3=$(($FONT_COLOR_3+$COLOR))
        BG3=$(($BACKGROUND_3+$BG))
        FE3=$(($TEXTEFFECT_3+$EFFECT))

        FC4=$(($FONT_COLOR_4+$COLOR))
        BG4=$(($BACKGROUND_4+$BG))
        FE4=$(($TEXTEFFECT_4+$EFFECT))


        ## CALL FORMATING HELPER FUNCTION: effect + font color + BG color
        local TEXT_FORMAT_1
        local TEXT_FORMAT_2
        local TEXT_FORMAT_3
        local TEXT_FORMAT_4
        format_font TEXT_FORMAT_1 $FE1 $FC1 $BG1
        format_font TEXT_FORMAT_2 $FE2 $FC2 $BG2
        format_font TEXT_FORMAT_3 $FC3 $FE3 $BG3
        format_font TEXT_FORMAT_4 $FC4 $FE4 $BG4


        # GENERATE PROMT SECTIONS
        local PROMT_USER=$"$TEXT_FORMAT_1 \u "
        local PROMT_HOST=$"$TEXT_FORMAT_2 \h "
        local PROMT_PWD=$"$TEXT_FORMAT_3 \${NEW_PWD} "
        local PROMT_INPUT=$"$PROMT_FORMAT "


        ############################################################################
        ## SEPARATOR FORMATING                                                    ##
        ## Generate the separators between sections                               ##
        ## Uses background colors of the sections                                 ##
        ############################################################################

        ## CONVERT CODES
        TSFC1=$(($BACKGROUND_1+$COLOR))
        TSBG1=$(($BACKGROUND_2+$BG))

        TSFC2=$(($BACKGROUND_2+$COLOR))
        TSBG2=$(($BACKGROUND_3+$BG))

        TSFC3=$(($BACKGROUND_3+$COLOR))
        TSBG3=$(($DEFAULT+$BG))


        ## CALL FORMATING HELPER FUNCTION: effect + font color + BG color
        local SEPARATOR_FORMAT_1
        local SEPARATOR_FORMAT_2
        local SEPARATOR_FORMAT_3
        format_font SEPARATOR_FORMAT_1 $TSFC1 $TSBG1
        format_font SEPARATOR_FORMAT_2 $TSFC2 $TSBG2
        format_font SEPARATOR_FORMAT_3 $TSFC3 $TSBG3


        # GENERATE SEPARATORS WITH FANCY TRIANGLE
        local TRIANGLE=$'\uE0B0'
        local SEPARATOR_1=$SEPARATOR_FORMAT_1$TRIANGLE
        local SEPARATOR_2=$SEPARATOR_FORMAT_2$TRIANGLE
        local SEPARATOR_3=$SEPARATOR_FORMAT_3$TRIANGLE



        ############################################################################
        ## WINDOW TITLE                                                           ##
        ## Prevent messed up terminal-window titles                               ##
        ############################################################################
        case $TERM in
        xterm*|rxvt*)
                local TITLEBAR='\[\033]0;\u:${NEW_PWD}\007\]'
                ;;
        *)
                local TITLEBAR=""
                ;;
        esac



        ############################################################################
        ## BASH PROMT                                                             ##
        ## Generate promt and remove format from the rest                         ##
        ############################################################################
        PS1="$TITLEBAR\n${PROMT_USER}${SEPARATOR_1}${PROMT_HOST}${SEPARATOR_2}${PROMT_PWD}${SEPARATOR_3}${PROMT_INPUT}"



        ## For terminal line coloring, leaving the rest standard
        none="$(tput sgr0)"
        trap 'echo -ne "${none}"' DEBUG
}




################################################################################
##  MAIN                                                                      ##
################################################################################

##      Bash provides an environment variable called PROMPT_COMMAND. 
##      The contents of this variable are executed as a regular Bash command 
##      just before Bash displays a prompt. 
##      We want it to call our own command to truncate PWD and store it in NEW_PWD
PROMPT_COMMAND=bash_prompt_command

##      Call bash_promnt only once, then unset it (not needed any more)
##      It will set $PS1 with colors and relative to $NEW_PWD, 
##      which gets updated by $PROMT_COMMAND on behalf of the terminal
bash_prompt
unset bash_prompt



### EOF ###
```