Import Splunk Add-On for Unix and Linux version 9.2.0
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184
bin/cpu.sh
Executable file
184
bin/cpu.sh
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#!/bin/sh
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# SPDX-FileCopyrightText: 2024 Splunk, Inc.
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# SPDX-License-Identifier: Apache-2.0
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# shellcheck disable=SC1091
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. "$(dirname "$0")"/common.sh
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HEADER='CPU pctUser pctNice pctSystem pctIowait pctIdle'
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HEADERIZE="BEGIN {print \"$HEADER\"}"
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PRINTF='{printf "%-3s %9s %9s %9s %9s %9s\n", cpu, pctUser, pctNice, pctSystem, pctIowait, pctIdle}'
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if [ "$KERNEL" = "Linux" ] ; then
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queryHaveCommand sar
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FOUND_SAR=$?
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queryHaveCommand mpstat
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FOUND_MPSTAT=$?
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if [ $FOUND_SAR -eq 0 ] ; then
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CMD='sar -P ALL 1 1'
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# shellcheck disable=SC2016
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FORMAT='{cpu=$(NF-6); pctUser=$(NF-5); pctNice=$(NF-4); pctSystem=$(NF-3); pctIowait=$(NF-2); pctIdle=$NF}'
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elif [ $FOUND_MPSTAT -eq 0 ] ; then
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CMD='mpstat -P ALL 1 1'
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# shellcheck disable=SC2016
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FORMAT='{cpu=$(NFIELDS-10); pctUser=$(NFIELDS-9); pctNice=$(NFIELDS-8); pctSystem=$(NFIELDS-7); pctIowait=$(NFIELDS-6); pctIdle=$NF}'
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else
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failLackMultipleCommands sar mpstat
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fi
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# shellcheck disable=SC2016
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FILTER='($0 ~ /CPU/) { if($(NF-1) ~ /gnice/){ NFIELDS=NF; } else {NFIELDS=NF+1;} next} /Average|Linux|^$|%/ {next}'
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elif [ "$KERNEL" = "SunOS" ] ; then
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if [ "$SOLARIS_8" = "true" ] || [ "$SOLARIS_9" = "true" ] ; then
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CMD='eval mpstat -a -p 1 2 | tail -1 | sed "s/^[ ]*0/all/"; mpstat -p 1 2 | tail -r'
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else
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CMD='eval mpstat -aq -p 1 2 | tail -1 | sed "s/^[ ]*0/all/"; mpstat -q -p 1 2 | tail -r'
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fi
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assertHaveCommand "$CMD"
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# shellcheck disable=SC2016
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FILTER='($1=="CPU") {exit 1}'
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# shellcheck disable=SC2016
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FORMAT='{cpu=$1; pctUser=$(NF-4); pctNice="0"; pctSystem=$(NF-3); pctIowait=$(NF-2); pctIdle=$(NF-1)}'
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elif [ "$KERNEL" = "AIX" ] ; then
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queryHaveCommand mpstat
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queryHaveCommand lparstat
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FOUND_MPSTAT=$?
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FOUND_LPARSTAT=$?
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if [ $FOUND_MPSTAT -eq 0 ] && [ $FOUND_LPARSTAT -eq 0 ] ; then
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# Get extra fields from lparstat
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COUNT=$(lparstat | grep " app" | wc -l)
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if [ $COUNT -gt 0 ] ; then
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# Fetch value from "app" column of lparstat output
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FETCH_APP_COL_NUM='BEGIN {app_col_num = 8}
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{
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if($0 ~ /System configuration|^$/) {next}
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if($0 ~ / app/)
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{
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for(i=1; i<=NF; i++)
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{
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if($i == "app")
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{
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app_col_num = i;
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break;
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}
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}
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print app_col_num;
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exit 0;
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}
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}'
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APP_COL_NUM=$(lparstat | awk "$FETCH_APP_COL_NUM")
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CPUPool=$(lparstat | tail -1 | awk -v APP_COL_NUM=$APP_COL_NUM -F " " '{print $APP_COL_NUM}')
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else
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CPUPool=0
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fi
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# Fetch other required fields from lparstat output
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OnlineVirtualCPUs=$(lparstat -i | grep "Online Virtual CPUs" | awk -F " " '{print $NF}')
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EntitledCapacity=$(lparstat -i | grep "Entitled Capacity " | awk -F " " '{print $NF}')
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DEFINE="-v CPUPool=$CPUPool -v OnlineVirtualCPUs=$OnlineVirtualCPUs -v EntitledCapacity=$EntitledCapacity"
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# Get cpu stats using mpstat command and manipulate the output for adding extra fields
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CMD='mpstat -a 1 1'
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# shellcheck disable=SC2016
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FORMAT='BEGIN {flag = 0}
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{
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if($0 ~ /System configuration|^$/) {next}
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if(flag == 1)
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{
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# Prepend extra field values from lparstat
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for(i=NF+4; i>=4; i--)
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{
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$i = $(i-3);
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}
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if($0 ~ /ALL/)
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{
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$1 = CPUPool;
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$2 = OnlineVirtualCPUs;
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$3 = EntitledCapacity;
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}
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else
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{
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$1 = "-";
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$2 = "-";
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$3 = "-";
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}
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}
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if($0 ~ /cpu /)
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{
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# Prepend extra field headers from lparstat
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for(i=NF+4; i>=4; i--)
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{
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$i = $(i-3);
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}
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$1 = "CPUPool";
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$2 = "OnlineVirtualCPUs";
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$3 = "EntitledCapacity";
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flag = 1;
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}
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for(i=1; i<=NF; i++)
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{
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printf "%17s ", $i;
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}
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print "";
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}'
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fi
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$CMD | tee "$TEE_DEST" | $AWK $DEFINE "$FORMAT"
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echo "Cmd = [$CMD]; | $AWK $DEFINE '$FORMAT'" >> "$TEE_DEST"
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exit
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elif [ "$KERNEL" = "Darwin" ] ; then
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HEADER='CPU pctUser pctSystem pctIdle'
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HEADERIZE="BEGIN {print \"$HEADER\"}"
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PRINTF='{printf "%-3s %9s %9s %9s \n", cpu, pctUser, pctSystem, pctIdle}'
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# top command here is used to get a single instance of cpu metrics
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CMD='top -l 1'
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assertHaveCommand "$CMD"
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# FILTER here skips all the rows that doesn't match "CPU".
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# shellcheck disable=SC2016
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FILTER='($1 !~ "CPU") {next;}'
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# FORMAT here removes '%'in the end of the metrics.
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# shellcheck disable=SC2016
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FORMAT='function remove_char(string, char_to_remove) {
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sub(char_to_remove, "", string);
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return string;
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}
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{
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cpu="all";
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pctUser = remove_char($3, "%");
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pctSystem = remove_char($5, "%");
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pctIdle = remove_char($7, "%");
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}'
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elif [ "$KERNEL" = "FreeBSD" ] ; then
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CMD='eval top -P -d2 c; top -d2 c'
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assertHaveCommand "$CMD"
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# shellcheck disable=SC2016
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FILTER='($1 !~ "CPU") { next; }'
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# shellcheck disable=SC2016
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FORMAT='function remove_char(string, char_to_remove) {
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sub(char_to_remove, "", string);
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return string;
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}
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{
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if ($1 == "CPU:") {
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cpu = "all";
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} else {
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cpu = remove_char($2, ":");
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}
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}
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{
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pctUser = remove_char($(NF-9), "%");
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pctNice = remove_char($(NF-7), "%");
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pctSystem = remove_char($(NF-5), "%");
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pctIdle = remove_char($(NF-1), "%");
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pctIowait = "0.0";
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}'
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elif [ "$KERNEL" = "HP-UX" ] ; then
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queryHaveCommand sar
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FOUND_SAR=$?
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if [ $FOUND_SAR -eq 0 ] ; then
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CMD='sar -M 1 1 ALL'
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fi
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FILTER='/HP-UX|^$|%/ {next}'
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# shellcheck disable=SC2016
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FORMAT='{k=0; if(5<NF) k=1} {cpu=$(1+k); pctUser=$(2+k); pctNice="0"; pctSystem=$(3+k); pctIowait=$(4+k); pctIdle=$(5+k)}'
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fi
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$CMD | tee "$TEE_DEST" | $AWK "$HEADERIZE $FILTER $FORMAT $PRINTF" header="$HEADER"
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echo "Cmd = [$CMD]; | $AWK '$HEADERIZE $FILTER $FORMAT $PRINTF' header=\"$HEADER\"" >> "$TEE_DEST"
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