color test shutdown57.sh

#!/bin/bash
# COLOR TEST
# by : shutdown57 ( https://facebook.com.alinko.jp )


f=3 b=4
for j in f b; do
  for i in {0..7}; do
    printf -v $j$i %b "\e[${!j}${i}m"
  done
done
bld=$'\e[1m'
rst=$'\e[0m'

user=$(whoami)
host=$(hostname)
os=$(source /etc/os-release && echo $PRETTY_NAME)
kernel=$(hostnamectl | awk -F- '/Kernel/{ OFS="-";NF--; print }'|awk '{print $3}')
wm=$(wmctrl -m | awk 'NR==1 {print $2}')
shell=$(echo "$SHELL" | awk -F/ '{for ( i=1; i <= NF; i++) sub(".", substr(toupper($i),1,1) , $i); print $NF}')


clear
cat << EOF

${f1}███████╗${f2}██╗  ██╗${f3}██╗   ██╗${f4}████████╗${f5}██████╗ ${f6} ██████╗ ${f7}██╗    ██╗${f5}███╗   ██╗${f4}███████╗${f3}███████╗${rst}
${f1}██╔════╝${f2}██║  ██║${f3}██║   ██║${f4}╚══██╔══╝${f5}██╔══██╗${f6}██╔═══██╗${f7}██║    ██║${f5}████╗  ██║${f4}██╔════╝${f3}╚════██║${rst}
${f1}███████╗${f2}███████║${f3}██║   ██║${f4}   ██║   ${f5}██║  ██║${f6}██║   ██║${f7}██║ █╗ ██║${f5}██╔██╗ ██║${f4}███████╗${f3}    ██╔╝${rst}
${f1}╚════██║${f2}██╔══██║${f3}██║   ██║${f4}   ██║   ${f5}██║  ██║${f6}██║   ██║${f7}██║███╗██║${f5}██║╚██╗██║${f4}╚════██║${f3}   ██╔╝ ${rst}
${f1}███████║${f2}██║  ██║${f3}╚██████╔╝${f4}   ██║   ${f5}██████╔╝${f6}╚██████╔╝${f7}╚███╔███╔╝${f5}██║ ╚████║${f4}███████║${f3}   ██║  ${rst}
${f1}╚══════╝${f2}╚═╝  ╚═╝${f3} ╚═════╝ ${f4}   ╚═╝   ${f5}╚═════╝ ${f6} ╚═════╝ ${f7} ╚══╝╚══╝ ${f5}╚═╝  ╚═══╝${f4}╚══════╝${f3}   ╚═╝  ${rst}
${f7}███${f6}███${f5}███${f4}███${f3}███${f2}███${f1}███${rst}${f7}███${f6}███${f5}███${f4}███${f3}███${f2}███${f1}███${rst}${f7}███${f6}███${f5}███${f4}███${f3}███${f2}███${f1}███${rst}${f7}███${f6}███${f5}███${f4}███${f3}███${f2}███${f1}███${rst}

      ${f2}=[${f4} ${os} | ${f5} ${user} | ${f6} ${host} | ${f7} ${kernel} | ${f3} ${wm} ]=${rst}

EOF
read