System information
$ HZ=`awk '/\#define HZ/ { print $3}' /usr/include/asm-generic/param.h`; NUMCPUS=`grep ^proc /proc/cpuinfo | wc -l`; FIRST=`cat /proc/stat | awk '/^cpu / { print $5}'`; sleep 1; SECOND=`cat /proc/stat | awk '/^cpu / { print $5}'`; USED=`echo 4 k 100 $SECOND $FIRST - $NUMCPUS $HZ \* / 100 \* - p | dc`; echo ${USED}` $ NUMCPUS=`grep ^proc /proc/cpuinfo | wc -l`; FIRST=`cat /proc/stat | awk '/^cpu / { print $5}'`; sleep 1; SECOND=`cat /proc/stat | awk '/^cpu / { print $5}'`; USED=`echo 2 k 100 $SECOND $FIRST - $NUMCPUS / - p | dc`; echo ${USED}%
$ max=$(grep 'last full capacity:' /proc/acpi/battery/BAT1/info | awk '{ print $4}'); current=$(grep 'remaining capacity:' /proc/acpi/battery/BAT1/state | awk '{ print $3}'); percent=$(expr $current'00' / $max); echo -e $percent $ cat /sys/class/power_supply/BAT1/uevent | awk '/POWER_SUPPLY_CAPACITY/ { print $1}' | sed 's/POWER_SUPPLY_CAPACITY=//'
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