aqui estão minhas variáveis:
HEADER='Device bps tps bread bwrtn'
HEADERIZE="BEGIN {print \"$HEADER\"}"
PRINTF='{printf "%-10s %11s %11s %12s %12s %13s %13s %13s\n", device, bps, tps, bread, bwrtn}'
CMD='iostat -DlR 1 2'
FILTER='/^cd/ {next} /^Disks:/ {reportOrd++; next} (reportOrd<2) {next}'
FORMAT='{device=$1; bps="?"; tps="?"; bread=$5; bwrtn=$6}'
$CMD | awk "$HEADERIZE $FILTER $FORMAT $PRINTF" header="$HEADER"
Quero que a saída fique assim:
Device bps tps bread bwrtn
hdisk0 0.0 0.0 0.0 0.0
hdisk1 0.0 0.0 0.0 0.0
hdisk2 0.0 0.0 0.0 0.0
hdisk3 0.0 0.0 0.0 0.0
é claro que gostaria de mais cabeçalhos de desempenho, mas estou tentando manter as coisas simples.
O problema surge quando executo: $CMD | awk "$HEADERIZE $FILTER $FORMAT $PRINTF" header="$HEADER". Está saindo assim:
Device bps tps bread bwrtn
--------------- ? ? --------------------------------------
%tm ? ? bwrtn rps
act ? ? outs serv
hdisk1 ? ? 0.0 0.0
hdisk0 ? ? 0.0 0.0
Acredito que a variável "FILTER" esteja incorreta, mas não conheço a sintaxe correta.
Esta é a entrada:iostat -DlR 1 2
saída:
root@myserver #iostat -DlR 1 2
System configuration: lcpu=20 drives=2 paths=16 vdisks=0
Disks: xfers read write queue
--------------- -------------------------------- ------------------------------------ ------------------------------------ --------------------------------------
%tm bps tps bread bwrtn rps avg min max time fail wps avg min max time fail avg min max avg avg serv
act serv serv serv outs serv serv serv outs time time time wqsz sqsz qfull
hdisk1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 0.0 0.0 0.0 0.0 0 0 0.0 0.0 0.0 0.0 0.0 0.0
hdisk0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 0.0 0.0 0.0 0.0 0 0 0.0 0.0 0.0 0.0 0.0 0.0
Disks: xfers read write queue
--------------- -------------------------------- ------------------------------------ ------------------------------------ --------------------------------------
%tm bps tps bread bwrtn rps avg min max time fail wps avg min max time fail avg min max avg avg serv
act serv serv serv outs serv serv serv outs time time time wqsz sqsz qfull
hdisk1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 0.0 0.0 0.0 0.0 0 0 0.0 0.0 0.0 0.0 0.0 0.0
hdisk0 0.0 77.8K 19.0 0.0 77.8K 0.0 0.0 0.0 0.0 0 0 19.0 0.3 0.2 0.5 0 0 0.0 0.0 0.0 0.0 0.0 0.0
Desired output:
Device bps tps bread bwrtn
hdisk0 0.0 0.0 0.0 0.0
hdisk1 0.0 0.0 0.0 0.0
hdisk2 0.0 0.0 0.0 0.0
hdisk3 0.0 0.0 0.0 0.0
Responder1
Solução:
iostat -d 1 2 | awk 'BEGIN{print "Device\tbps\ttps\tbread\tbwrtn"}/^hdisk/{print $1"\t"$3"\t"$4"\t"$5"\t"$6}'
Saída:
Device bps tps bread bwrtn
hdisk1 0.0 0.0 0.0 0.0
hdisk0 0.0 0.0 0.0 0.0
hdisk1 0.0 0.0 0.0 0.0
hdisk0 77.8K 19.0 0.0 77.8K
Comentários:
Receio que você esteja complicando as coisas. A solução oferecida é uma estimativa baseada na sua amostra de entrada e na saída desejada, que apresenta algumas inconsistências. Explique de onde vêm os dados hdisk2, hdisk3uma vez que eles não estão presentes na entrada. Explique também o motivo da construção de uma solução tão complicada, que divide o código em diversas variáveis de ambiente.