tailtop

#!/bin/sh
######################################################
# Last Modified: 2026-Apr-11
#-----------------------------------------------------
# shellcheck disable=SC2039
#-----------------------------------------------------

trap '' SIGHUP
renice 15 $$

# Give priority to built-in binaries #
export PATH="/bin:/usr/bin:/sbin:/usr/sbin:$PATH"

if [ $# -eq 0 ] || [ -z "$1" ] || \
   ! echo "$1" | grep -qE "^([1-9][0-9]{0,2})$"
then sleepSecs=60
else sleepSecs="$1"
fi

while true
do
	top -b -n 1 | tail -n +5 | head -n -1 | sed 's/S </S</g;s/S N/SN/g;s/S D/SD/g;s/R N/RN/g;' | \
awk -F" " -v OFS=',' '{if ($5 ~ /m[^\s\\]/){
printf "%s,%s,%s,%s,%s,%s,%s,", $1,$2,$3,$4,gensub(/m([^\s\\])/,"m,\\1","g",$5),$6,$7;for(i=8; i<=NF; ++i) printf "%s ", $i; print ""
}
else{
printf "%s,%s,%s,%s,%s,%s,%s,%s,", $1,$2,$3,$4,$5,$6,$7,$8;for(i=9; i<=NF; ++i) printf "%s ", $i; print ""
}
}' | \
sed 's/,$//g;s/S</S </g;s/SN/S N/g;s/SD/S D/g;s/RN/R N/g;' > /tmp/scmerlin-top
	sleep "$sleepSecs"
done

renice 0 $$

#EOF#