Кастомные команды в NetXMS

#!/usr/bin/env bash
 
ACTION=$1
WHATTOGREP=$2
 
if [ "${WHATTOGREP}" == "" ]; then
    echo "Pass grep-able string as second parameter."
    exit 1
fi
 
PIDS=$(ps aux | grep ${WHATTOGREP} | awk {' print $2 '})
 
if [ ! -z $DEBUG ]; then
    echo "PIDS: ${PIDS}"
fi
 
TOTALREAD=0
TOTALWRITE=0
 
for pid in ${PIDS}; do
    r=$(cat /proc/${pid}/io 2>/dev/null | grep read_bytes | awk {' print $2 '})
    w=$(cat /proc/${pid}/io 2>/dev/null | grep write_bytes | grep -v "cancel" | awk {' print $2 '})
    if [ ! -z $DEBUG ]; then
        echo "PID: ${pid} - read ${r}, write ${w}"
    fi
 
    if [ "${r}" == "" ]; then
        r=0
    fi
    if [ "${w}" == "" ]; then
        w=0
    fi
 
    TOTALREAD=$[ ${TOTALREAD} + ${r} ]
    TOTALWRITE=$[ ${TOTALWRITE} + ${w} ]
done
 
if [ "${ACTION}" == "read" ]; then
    echo $TOTALREAD
elif [ "${ACTION}" == "write" ]; then
    echo $TOTALWRITE
else
    echo "Invalid action parameter. Pass 'read' or 'write' as first parameter."
    exit 1
fi