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#!/bin/bash
# baraction.sh for scrotwm status bar
# From http://wiki.archlinux.org/index.php/Scrotwm
SLEEP_SEC=5
#loops forever outputting a line every SLEEP_SEC secs
while :; do
eval $(cat /proc/acpi/battery/BAT0/state | awk '/charging state/ {printf "BAT_CHGSTATE=%s;", $3}; /remaining capacity/ {printf "BAT_REMNG=%s;",$3}; /present rate/ {printf "BAT_RATE=%s;",$3};' -)
eval $(cat /proc/acpi/battery/BAT0/info | awk '/present/ {printf "BAT_PRESENT=%s;", $2}; /last full capacity/ {printf "BAT_LASTFULL=%s;",$4};' -)
BAT_REMNG_WH=`echo "scale=1; a=($BAT_REMNG+50)/1000; print a" | bc -l`
BAT_RATE_W=`echo "scale=1; a=($BAT_RATE+50)/1000; print a" | bc -l`
BCSCRIPT="scale=0; a=(100*$BAT_REMNG / $BAT_LASTFULL); print a"
BAT_PCT=`echo $BCSCRIPT | bc -l`%
case $BAT_PRESENT in
no)
POWER_STR="AC, NO BATTERY"
;;
yes)
case $BAT_CHGSTATE in
charged)
#on ac
AC_STATUS="ON AC"
TIME_REMNG="N/A"
POWER_STR="$AC_STATUS $BAT_CHGSTATE $BAT_PCT"
;;
charging)
#on ac
AC_STATUS="ON AC"
BCSCRIPT="scale=1; a=(60*($BAT_LASTFULL - $BAT_REMNG) / $BAT_RATE); print a"
TIMETOFULL_MIN=`echo $BCSCRIPT | bc -l`
POWER_STR="$AC_STATUS $BAT_CHGSTATE $BAT_PCT C="$BAT_REMNG_WH"Wh Rate="$BAT_RATE_W"W TTF="$TIMETOFULL_MIN"min"
;;
discharging)
AC_STATUS="ON BATT"
TIME_REMNG_MIN=`echo "scale=0; a=(60*$BAT_REMNG / $BAT_RATE); print a" | bc -l`
TIME_REMNG_HH=`echo "scale=0; a=($BAT_REMNG / $BAT_RATE); if (a<10) {print "0"; print a} else {print a}" | bc -l`
TIME_REMNG_MM=`echo "scale=0; a=($TIME_REMNG_MIN-60*$TIME_REMNG_HH); if (a<10) {print "0"; print a} else {print a}" | bc -l`
POWER_STR="$AC_STATUS $BAT_PCT C="$BAT_REMNG_WH"Wh P="$BAT_RATE_W"W R="$TIME_REMNG_HH":"$TIME_REMNG_MM
;;
*)
POWER_STR=$BAT_CHGSTATE
;;
esac
;;
*)
POWER_STR="error"
;;
esac
#scrotwm bar_print can't handle UTF-8 characters, such as degree symbol
#Core 0: +67.0°C (crit = +100.0°C)
eval $(sensors 2>/dev/null | sed s/[°+]//g | awk '/^Core 0/ {printf "CORE0TEMP=%s;", $3}; /^Core 1/ {printf "CORE1TEMP=%s;",$3}; /^fan1/ {printf "FANSPD=%s;",$2};' -)
TEMP_STR="Tcpu=$CORE0TEMP,$CORE1TEMP F=$FANSPD"
WLAN_ESSID=$(iwconfig wlan0 | awk -F "\"" '/wlan0/ { print $2 }')
eval $(cat /proc/net/wireless | sed s/[.]//g | awk '/wlan0/ {printf "WLAN_QULTY=%s; WLAN_SIGNL=%s; WLAN_NOISE=%s", $3,$4,$5};' -)
BCSCRIPT="scale=0;a=100*$WLAN_QULTY/70;print a"
WLAN_QPCT=`echo $BCSCRIPT | bc -l`
WLAN_POWER=`iwconfig 2>/dev/null| grep "Tx-Power"| awk {'print $4'}|sed s/Tx-Power=//`
WLAN_STR="$WLAN_ESSID: Q=$WLAN_QPCT% S/N="$WLAN_SIGNL"/"$WLAN_NOISE"dBm T="$WLAN_POWER"dBm"
CPUFREQ_STR=`echo "Freq:"$(cat /proc/cpuinfo | grep 'cpu MHz' | sed 's/.*: //g; s/\..*//g;')`
CPULOAD_STR="Load:$(uptime | sed 's/.*://; s/,//g')"
eval $(awk '/^MemTotal/ {printf "MTOT=%s;", $2}; /^MemFree/ {printf "MFREE=%s;",$2}' /proc/meminfo)
MUSED=$(( $MTOT - $MFREE ))
MUSEDPT=$(( ($MUSED * 100) / $MTOT ))
MEM_STR="Mem:${MUSEDPT}%"
echo -e "$POWER_STR $TEMP_STR $CPUFREQ_STR $CPULOAD_STR $MEM_STR $WLAN_STR"
#alternatively if you prefer a different date format
#DATE_STR=`date +"%H:%M %a %d %b`
#echo -e "$DATE_STR $POWER_STR $TEMP_STR $CPUFREQ_STR $CPULOAD_STR $MEM_STR $WLAN_STR"
sleep $SLEEP_SEC
done
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