memory.sh(文件已创建)
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| 1 | + | #!/bin/bash | |
| 2 | + | # adapted from https://github.com/pfoo/armbian-lib/blob/master/scripts/update-motd.d/30-sysinfo | |
| 3 | + | ||
| 4 | + | function display() { | |
| 5 | + | # $1=name $2=value $3=red_limit $4=minimal_show_limit $5=unit $6=after $7=acs/desc{ | |
| 6 | + | # battery red color is opposite, lower number | |
| 7 | + | if [[ "$1" == "Battery" ]]; then local great="<"; else local great=">"; fi | |
| 8 | + | #if [[ -n "$2" && "$2" -gt "0" && (( "${2%.*}" -ge "$4" )) ]]; then | |
| 9 | + | printf "%-14s" "$1:" | |
| 10 | + | if awk "BEGIN{exit ! ($2 $great $3)}"; then echo -ne "\e[0;91m $2"; else echo -ne "\e[0;92m $2"; fi | |
| 11 | + | printf "%-1s\x1B[0m" "$5" | |
| 12 | + | printf "%-11s\t" "$6" | |
| 13 | + | return 1 | |
| 14 | + | #fi | |
| 15 | + | } # display | |
| 16 | + | ||
| 17 | + | # memory and swap | |
| 18 | + | mem_info=$(LC_ALL=C free -w 2>/dev/null | grep "^Mem" || LC_ALL=C free | grep "^Mem") | |
| 19 | + | memory_usage=$(awk '{printf("%.0f",(($2-($4+$6+$7))/$2) * 100)}' <<<${mem_info}) | |
| 20 | + | mem_info=$(echo $mem_info | awk '{print $2}') | |
| 21 | + | memory_total=$(( mem_info / 1024 )) | |
| 22 | + | swap_info=$(LC_ALL=C free -m | grep "^Swap") | |
| 23 | + | swap_usage=$( (awk '/Swap/ { printf("%3.0f", $3/$2*100) }' <<<${swap_info} 2>/dev/null || echo 0) | tr -c -d '[:digit:]') | |
| 24 | + | swap_total=$(awk '{print $(2)}' <<<${swap_info}) | |
| 25 | + | ||
| 26 | + | if [[ ${memory_total} -gt 1000 ]]; then | |
| 27 | + | memory_total=$(awk '{printf("%.2f",$1/1024)}' <<<${memory_total})"G" | |
| 28 | + | else | |
| 29 | + | memory_total+="M" | |
| 30 | + | fi | |
| 31 | + | ||
| 32 | + | if [[ ${swap_total} -gt 500 ]]; then | |
| 33 | + | swap_total=$(awk '{printf("%.2f",$1/1024)}' <<<${swap_total})"G" | |
| 34 | + | else | |
| 35 | + | swap_total+="M" | |
| 36 | + | fi | |
| 37 | + | ||
| 38 | + | display "Memory usage" "$memory_usage" "70" "0" "%" " of ${memory_total}" | |
| 39 | + | echo "" # fixed newline | |
| 40 | + | display "Zram usage" "$swap_usage" "75" "0" "%" " of ${swap_total}" | |
| 41 | + | echo "" # fixed newline | |
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