#!/bin/sh
+#
+# $scrotwm$
+
+print_date() {
+ # The date is printed to the status bar by default.
+ # To print the date through this script, set clock_enabled to 0
+ # in scrotwm.conf. Uncomment "print_date" below.
+ FORMAT="%a %b %d %R %Z %Y"
+ DATE=`date "+${FORMAT}"`
+ echo -n "${DATE} "
+}
+
+print_mem() {
+ MEM=`/usr/bin/top | grep Free: | cut -d " " -f7`
+ echo -n "Free mem: $MEM "
+}
+
+_print_cpu() {
+ typeset -R4 _1=${1} _2=${2} _3=${3} _4=${4} _5=${5}
+ echo -n "CPU:${_1}% User${_2}% Nice${_3}% Sys${_4}% Int${_5}% Idle "
+}
print_cpu() {
- echo -n "CPU: ${7}% User ${8}% Nice ${9}% Sys ${10}% Int ${11}% Idle "
+ OUT=""
+ # iostat prints each column justified to 3 chars, so if one counter
+ # is 100, it jams up agains the preceeding one. sort this out.
+ while [ "${1}x" != "x" ]; do
+ if [ ${1} -gt 99 ]; then
+ OUT="$OUT ${1%100} 100"
+ else
+ OUT="$OUT ${1}"
+ fi
+ shift;
+ done
+ _print_cpu $OUT
}
print_apm() {
}
while :; do
- # you probably want to reduce the sleep below if you enable this
- #print_cpu `/usr/sbin/iostat -C`
- print_apm `/usr/sbin/apm -alb`
- echo ""
- sleep 59
+ # instead of sleeping, use iostat as the update timer.
+ # cache the output of apm(8), no need to call that every second.
+ /usr/sbin/iostat -C -c 3600 |& # wish infinity was an option
+ PID="$!"
+ APM_DATA=""
+ I=0
+ trap "kill $PID; exit" TERM
+ while read -p; do
+ if [ $(( ${I} % 1 )) -eq 0 ]; then
+ APM_DATA=`/usr/sbin/apm -alb`
+ fi
+ if [ $I -gt 2 ]; then
+ # print_date
+ # print_mem $MEM
+ print_cpu $REPLY
+ print_apm $APM_DATA
+ echo ""
+ fi
+ I=$(( ${I} + 1 ));
+ done
done