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- #!/bin/bash
- # config
- max_usage=90
- bar_width=50
- # colors
- white="\e[39m"
- green="\e[1;32m"
- red="\e[1;31m"
- dim="\e[2m"
- undim="\e[0m"
- # zpool status
- printf "\nzpool status:\n"
- zpool status -x | sed -e 's/^/ /'
- # zpool usage
- mapfile -t zpools < <(zpool list -Ho name,cap,size)
- printf "\nzpool usage:\n"
- for line in "${zpools[@]}"; do
- # get zpool usage
- usage=$(echo "$line" | awk '{print $2}' | sed 's/%//')
- used_width=$((($usage*$bar_width)/100))
- # color is green if usage < max_usage, else red
- if [ "${usage}" -ge "${max_usage}" ]; then
- color=$red
- else
- color=$green
- fi
- # print green/red bar until used_width
- bar="[${color}"
- for ((i=0; i<$used_width; i++)); do
- bar+="="
- done
- # print dimmmed bar until end
- bar+="${white}${dim}"
- for ((i=$used_width; i<$bar_width; i++)); do
- bar+="="
- done
- bar+="${undim}]"
- # print usage line & bar
- echo "${line}" | awk '{ printf("%-30s%+3s used out of %+5s\n", $1, $2, $3); }' | sed -e 's/^/ /'
- echo -e "${bar}" | sed -e 's/^/ /'
- done
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