Optim

scripts/00-basic

@@ -3,15 +3,15 @@
 # get load averages
 IFS=" " read LOAD1 LOAD5 LOAD15 <<<$(awk '{ print $1,$2,$3 }' /proc/loadavg)
 # get free memory
-IFS=" " read USED AVAIL TOTAL <<<$(free -htm | grep "Mem" | awk {'print $3,$7,$2'})
+IFS=" " read USED AVAIL TOTAL <<<$(free -htm | awk '/Mem/ { print $3,$7,$2 }')
 # get processes
 PROCESS=$(ps -eo user=|sort|uniq -c | awk '{ print $2 " " $1 }')
 PROCESS_ALL=$(echo "$PROCESS"| awk {'print $2'} | awk '{ SUM += $1} END { print SUM }')
-PROCESS_ROOT=$(echo "$PROCESS"| grep root | awk {'print $2'})
-PROCESS_USER=$(echo "$PROCESS"| grep -v root | awk {'print $2'} | awk '{ SUM += $1} END { print SUM }')
+PROCESS_ROOT=$(echo "$PROCESS" | awk '/root/ { print $2}')
+PROCESS_USER=$(echo "$PROCESS" | awk '!/root/ { SUM += $2} END { print SUM }')
 # get processors
-PROCESSOR_NAME=$(grep "model name" /proc/cpuinfo | cut -d ' ' -f3- | awk {'print $0'} | head -1)
-PROCESSOR_COUNT=$(grep -ioP 'processor\t:' /proc/cpuinfo | wc -l)
+PROCESSOR_NAME=$(awk -F": " '/model name/ { print $2 }' /proc/cpuinfo | head -1)
+PROCESSOR_COUNT=$(grep -ioPc 'processor\t:' /proc/cpuinfo)
 
 # colors
 W="\e[0;39m"
@@ -35,10 +35,9 @@ max_usage=90
 bar_width=50
 
 # disk usage: ignore zfs, squashfs & tmpfs
-mapfile -t dfs < <(df -H -x zfs -x squashfs -x tmpfs -x devtmpfs -x overlay --output=target,pcent,size | tail -n+2)
 printf "\nDisk usage:\n"
 
-for line in "${dfs[@]}"; do
+while read line; do
     # get disk usage
     usage=$(echo "$line" | awk '{print $2}' | sed 's/%//')
     used_width=$((($usage*$bar_width)/100))
@@ -62,6 +61,6 @@ for line in "${dfs[@]}"; do
     # print usage line & bar
     echo "${line}" | awk '{ printf("%-31s%+3s used out of %+4s\n", $1, $2, $3); }' | sed -e 's/^/  /'
     echo -e "${bar}" | sed -e 's/^/  /'
-done
+done < <(df -H -x zfs -x squashfs -x tmpfs -x devtmpfs -x overlay --output=target,pcent,size | tail -n+2)
 
 printf "\n"