I am batman
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220
scripts/wallbash.sh
Executable file
220
scripts/wallbash.sh
Executable file
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#!/usr/bin/env bash
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#|---/ /+---------------------------------------------+---/ /|#
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#|--/ /-| Script to generate color palette from image |--/ /-|#
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#|-/ /--| Prasanth Rangan |-/ /--|#
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#|/ /---+---------------------------------------------+/ /---|#
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#// accent color profile
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colorProfile="default"
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wallbashCurve="32 50\n42 46\n49 40\n56 39\n64 38\n76 37\n90 33\n94 29\n100 20"
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sortMode="auto"
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while [ $# -gt 0 ] ; do
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case "$1" in
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-v|--vibrant) colorProfile="vibrant"
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wallbashCurve="18 99\n32 97\n48 95\n55 90\n70 80\n80 70\n88 60\n94 40\n99 24"
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;;
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-p|--pastel) colorProfile="pastel"
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wallbashCurve="10 99\n17 66\n24 49\n39 41\n51 37\n58 34\n72 30\n84 26\n99 22"
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;;
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-m|--mono) colorProfile="mono"
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wallbashCurve="10 0\n17 0\n24 0\n39 0\n51 0\n58 0\n72 0\n84 0\n99 0"
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;;
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-c|--custom)
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shift
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if [ -n "${1}" ] && [[ "${1}" =~ ^([0-9]+[[:space:]][0-9]+\\n){8}[0-9]+[[:space:]][0-9]+$ ]] ; then
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colorProfile="custom"
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wallbashCurve="${1}"
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else
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echo "Error: Custom color curve format is incorrect ${1}"
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exit 1
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fi
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;;
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-d|--dark) sortMode="dark"
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colSort=""
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;;
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-l|--light) sortMode="light"
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colSort="-r"
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;;
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*) break
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;;
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esac
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shift
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done
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#// set variables
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wallbashImg="${1}"
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wallbashColors=4
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wallbashFuzz=70
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wallbashRaw="${2:-"${wallbashImg}"}.mpc"
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wallbashOut="${2:-"${wallbashImg}"}.dcol"
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wallbashCache="${2:-"${wallbashImg}"}.cache"
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#// color modulations
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pryDarkBri=116
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pryDarkSat=110
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pryDarkHue=88
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pryLightBri=100
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pryLightSat=100
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pryLightHue=114
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txtDarkBri=188
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txtLightBri=16
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#// input image validation
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if [ -z "${wallbashImg}" ] || [ ! -f "${wallbashImg}" ] ; then
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echo "Error: Input file not found!"
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exit 1
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fi
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magick -ping "${wallbashImg}" -format "%t" info: &> /dev/null
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if [ $? -ne 0 ] ; then
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echo "Error: Unsuppoted image format ${wallbashImg}"
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exit 1
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fi
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echo -e "wallbash ${colorProfile} profile :: ${sortMode} :: Colors ${wallbashColors} :: Fuzzy ${wallbashFuzz} :: \"${wallbashOut}\""
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mkdir -p "${cacheDir}/${cacheThm}"
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> "${wallbashOut}"
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#// define functions
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rgb_negative() {
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local inCol=$1
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local r=${inCol:0:2}
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local g=${inCol:2:2}
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local b=${inCol:4:2}
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local r16=$((16#$r))
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local g16=$((16#$g))
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local b16=$((16#$b))
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r=$(printf "%02X" $((255 - $r16)))
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g=$(printf "%02X" $((255 - $g16)))
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b=$(printf "%02X" $((255 - $b16)))
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echo "${r}${g}${b}"
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}
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rgba_convert() {
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local inCol=$1
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local r=${inCol:0:2}
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local g=${inCol:2:2}
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local b=${inCol:4:2}
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local r16=$((16#$r))
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local g16=$((16#$g))
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local b16=$((16#$b))
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printf "rgba(%d,%d,%d,\1341)\n" "$r16" "$g16" "$b16"
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}
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fx_brightness() {
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local inCol="${1}"
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local fxb=$(magick "${inCol}" -colorspace gray -format "%[fx:mean]" info:)
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if awk -v fxb="${fxb}" 'BEGIN {exit !(fxb < 0.5)}' ; then
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return 0 #// echo ":: ${fxb} :: dark :: ${inCol}"
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else
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return 1 #// echo ":: ${fxb} :: light :: ${inCol}"
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fi
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}
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#// quantize raw primary colors
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magick -quiet -regard-warnings "${wallbashImg}"[0] -alpha off +repage "${wallbashRaw}"
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readarray -t dcolRaw <<< $(magick "${wallbashRaw}" -depth 8 -fuzz ${wallbashFuzz}% +dither -kmeans ${wallbashColors} -depth 8 -format "%c" histogram:info: | sed -n 's/^[ ]*\(.*\):.*[#]\([0-9a-fA-F]*\) .*$/\1,\2/p' | sort -r -n -k 1 -t ",")
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if [ ${#dcolRaw[*]} -lt ${wallbashColors} ] ; then
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echo -e "RETRYING :: distinct colors ${#dcolRaw[*]} is less than ${wallbashColors} palette color..."
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readarray -t dcolRaw <<< $(magick "${wallbashRaw}" -depth 8 -fuzz ${wallbashFuzz}% +dither -kmeans $((wallbashColors + 2)) -depth 8 -format "%c" histogram:info: | sed -n 's/^[ ]*\(.*\):.*[#]\([0-9a-fA-F]*\) .*$/\1,\2/p' | sort -r -n -k 1 -t ",")
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fi
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#// sort colors based on image brightness
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if [ "${sortMode}" == "auto" ] ; then
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if fx_brightness "${wallbashRaw}" ; then
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sortMode="dark"
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colSort=""
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else
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sortMode="light"
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colSort="-r"
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fi
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fi
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echo "dcol_mode=\"${sortMode}\"" >> "${wallbashOut}"
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dcolHex=($(echo -e "${dcolRaw[@]:0:$wallbashColors}" | tr ' ' '\n' | awk -F ',' '{print $2}' | sort ${colSort}))
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greyCheck=$(magick "${wallbashRaw}" -colorspace HSL -channel g -separate +channel -format "%[fx:mean]" info:)
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if (( $(awk 'BEGIN {print ('"$greyCheck"' < 0.12)}') )); then
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wallbashCurve="10 0\n17 0\n24 0\n39 0\n51 0\n58 0\n72 0\n84 0\n99 0"
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fi
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#// loop for derived colors
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for (( i=0; i<${wallbashColors}; i++ )) ; do
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#// generate missing primary colors
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if [ -z "${dcolHex[i]}" ] ; then
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if fx_brightness "xc:#${dcolHex[i - 1]}" ; then
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modBri=$pryDarkBri
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modSat=$pryDarkSat
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modHue=$pryDarkHue
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else
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modBri=$pryLightBri
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modSat=$pryLightSat
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modHue=$pryLightHue
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fi
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echo -e "dcol_pry$((i + 1)) :: regen missing color"
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dcol[i]=$(magick xc:"#${dcolHex[i - 1]}" -depth 8 -normalize -modulate ${modBri},${modSat},${modHue} -depth 8 -format "%c" histogram:info: | sed -n 's/^[ ]*\(.*\):.*[#]\([0-9a-fA-F]*\) .*$/\2/p')
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fi
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echo "dcol_pry$((i + 1))=\"${dcolHex[i]}\"" >> "${wallbashOut}"
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echo "dcol_pry$((i + 1))_rgba=\"$( rgba_convert "${dcolHex[i]}" )\"" >> "${wallbashOut}"
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#// generate primary text colors
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nTxt=$(rgb_negative ${dcolHex[i]})
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if fx_brightness "xc:#${dcolHex[i]}" ; then
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modBri=$txtDarkBri
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else
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modBri=$txtLightBri
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fi
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tcol=$(magick xc:"#${nTxt}" -depth 8 -normalize -modulate ${modBri},10,100 -depth 8 -format "%c" histogram:info: | sed -n 's/^[ ]*\(.*\):.*[#]\([0-9a-fA-F]*\) .*$/\2/p')
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echo "dcol_txt$((i + 1))=\"${tcol}\"" >> "${wallbashOut}"
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echo "dcol_txt$((i + 1))_rgba=\"$( rgba_convert "${tcol}" )\"" >> "${wallbashOut}"
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#// generate accent colors
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xHue=$(magick xc:"#${dcolHex[i]}" -colorspace HSB -format "%c" histogram:info: | awk -F '[hsb(,]' '{print $2}')
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acnt=1
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echo -e "${wallbashCurve}" | sort -n ${colSort} | while read -r xBri xSat
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do
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acol=$(magick xc:"hsb(${xHue},${xSat}%,${xBri}%)" -depth 8 -format "%c" histogram:info: | sed -n 's/^[ ]*\(.*\):.*[#]\([0-9a-fA-F]*\) .*$/\2/p')
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echo "dcol_$((i + 1))xa${acnt}=\"${acol}\"" >> "${wallbashOut}"
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echo "dcol_$((i + 1))xa${acnt}_rgba=\"$( rgba_convert "${acol}" )\"" >> "${wallbashOut}"
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((acnt++))
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done
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done
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#// cleanup temp cache
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rm -f "${wallbashRaw}" "${wallbashCache}"
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