35-diskspace

#!/data/data/com.termux/files/usr/bin/env zsh

# config
max_usage=90
alert_usage=75
bar_width=50
# colors
green="\e[1;32m"
red="\e[1;31m"
yellow="\e[1;33m"
BOLD='\033[1m'
NC='\033[0m'

# disk usage: ignore zfs, squashfs & tmpfs
# readarray -t dfs < <(df -H -t sdcardfs -t fuse -t fuse.rclone | tail -n+2)
dfs=("${(@f)$(df -H -t sdcardfs -t fuse -t fuse.rclone | tail -n+2)}")
printf "\n${BOLD}Disk Usage:${NC}\n"

for line in "${dfs[@]}"; do
    # get disk usage
    usage=$(echo "$line" | awk '{print $5}' | sed 's/%//')
    used_width=$((($usage*$bar_width)/100))
    # color is green if usage < max_usage, else red
    if [ "${usage}" -ge "${alert_usage}" ]; then
        color=$yellow
    elif [ "${usage}" -ge "${max_usage}" ]; then
        color=$red
    else
        color=$green
    fi
    # print green/red bar until used_width
    bar="${color}\uee03"
    for ((i=0; i<$used_width; i++)); do
        bar+="\uee04"
    done
    # print dimmmed bar until end
    bar+="${color}"
    for ((i=$used_width; i<$bar_width; i++)); do
        bar+="\uee01"
    done

    # print empty end if usage < max_usage, else filled
    if [ "${usage}" -ge "${max_usage}" ]; then
        bar+="${color}\uee05"
    else
        bar+="${color}\uee02"
    fi

    # escape color
    bar+="${NC}"

    # print usage line & bar
    echo "${line}" | awk '{ printf("%-31s%+3s used out of %+4s\n", $6, $3, $2); }' | sed -e 's/^/  /'
    echo -e "${bar}" | sed -e 's/^/  /'
done