在bash腳本中使用awk從文件中提取數據並存儲

Question

我是這里的新手，也是編程的入門者，所以請謹慎對待我。

Filename = Datafile.tmp

我得到一個帶有1行數據的日志文件，如下所示（逗號分隔）

24092014,17:21,357.7,5.1,49.96,228.6,7.9,1757.5,3378200.0,28.2,20680.0,846.0,1800.0,2    

瑪比，我必須解釋一下補鞋。 我有一個用BASH編寫的腳本，該腳本通過內部例程從逆變器中讀取數據。 我想更改該腳本，以便它像上面那樣從數據文件中讀取數據。 該腳本很長，但是僅是閱讀部分。 所以我想我可以閱讀所有的讀取端口例程，而只專注於

在我的情況下，將數據從數組轉換為可讀數據。 並在底部將變量存儲到工作文件

#Ask data from inverter 
get_data() {
printf $GetDataCMD > $PORT
dd if=$PORT of=$OUT bs=1 count=$dataLengthTotal & 
PID=$!
sleep 3
if [ -d /proc/$PID ]
 then
  rcvd="no"
  kill $PID
 else
  rcvd="yes"
fi
}

#Put received data in array and check for errors
receive_data() {
(( dataLengthTotal = $ANS_OFFSET+$dataLengthOutput+1 ))
retry_counter=$RETRY
while (( retry_counter )); do
get_data < $PORT 2>/dev/null
if [ $rcvd = "yes" ]; then

  data=(`od -b -v $OUT | sed -e 's/^[0-9]*//g' | sed -e 's/[ ]\([0-9]\)/ 0\1/g'`)

  if [ ${#data[@]} -ne $dataLengthTotal ]; then
    rcvd="nochk"
    echo -e `date -R`":  Wrong amount of data received\r" >> $LOG
    init_comport
    (( retry_counter -= 1 ))
  else
    # Check CRC
    sumstr="${data[@]:$ANS_OFFSET:$dataLengthOutput}"
    let sum=${sumstr// /+}
    if ((sum%256 == data[9+$dataLengthOutput])); then
       rcvd="chk"
       retry_counter=0
    else
       rcvd="nochk"
       echo -e `date -R`":  Checksum error in received data\r" >> $LOG
       init_comport
       (( retry_counter -= 1 ))
    fi
  fi
else
  init_comport
  (( retry_counter -= 1 ))
fi
done
}

#convert data from array into readable data
get_current_data() {
dataLengthOutput=30
GetDataCMD=$GetCurrentDataCMD
receive_data
if [ $rcvd = "chk" ]; then
#errorbits
(( errbits = data[9+7] * 256 + data[9+6] ))
#Voltage Solarpanels (Usol)
(( Usol = data[9+9] * 256 + data[9+8] ))
#Current Solarpanels (Isol)
(( Isol = data[9+11] * 256 + data[9+10] ))
#AC Frequency (Fnet)
(( Fnet = data[9+13] * 256 + data[9+12] ))
#AC Voltage (Unet)
(( Unet = data[9+15] * 256 + data[9+14] ))
#AC Current (Inet)
(( Inet = data[9+17] * 256 + data[9+16] ))
#AC Power (Pnet)
(( Pnet = data[9+19] * 256 + data[9+18] ))
#Total delivered (Etot)
(( Etot = data[9+22] * 65536 + data[9+21] * 256 + data[9+20] + WtotOffset ))
#Temp Inverter (Tinv)
(( Tinv = data[9+23] ))
#Total runtime (Htot)
(( Htot = data[9+26] * 65536 + data[9+25] * 256 + data[9+24] + HtotOffset ))
#Total CO2 (Ctot)
(( Ctot = Etot * $CO2perc / 100 ))
fi
}

#check, convert and write error messages
convert_errorbits() {
ErrorStr="Systeem_OK"
if (( errbits )); then
if (( errbits & 0x01 )); then
  ErrorStr="Usolar too high (`print_float $Usol 1` V). ${ErrorStr}"
fi
if (( errbits & 0x02 )); then
  ErrorStr="Usolar too low (`print_float $Usol 1` V). ${ErrorStr}"
fi
if (( errbits & 0x04 )); then
  ErrorStr="No mains detected. ${ErrorStr}"
fi
if (( errbits & 0x08 )); then
  ErrorStr="Uac too high (${Unet} V). ${ErrorStr}"
fi
if (( errbits & 0x10 )); then
  ErrorStr="Uac too low (${Unet} V). ${ErrorStr}"
fi
if (( errbits & 0x20 )); then
  ErrorStr="FreqAC too high (`print_float $Fnet 2` Hz). ${ErrorStr}"
fi
if (( errbits & 0x40 )); then
  ErrorStr="FreqAC too low (`print_float $Fnet 2` Hz). ${ErrorStr}"
fi
if (( errbits & 0x80 )); then
  ErrorStr="Temperature error (${Tinv}ºC). ${ErrorStr}"
fi
if (( errbits & 0x100 )); then
  ErrorStr="Hardware error. ${ErrorStr}"
fi
if (( errbits & 0x200 )); then
  ErrorStr="Starting. ${ErrorStr}"
fi
if (( errbits & 0x400 )); then
  ErrorStr="Max output (${Pnet} W). ${ErrorStr}"
fi
if (( errbits & 0x800 )); then
  ErrorStr="I max (`print_float $Isol 2` A). ${ErrorStr}"
fi
echo -e `date -R`":   Error message: $ErrorStr\r" >> $LOG
fi
}

#Get current day output
get_current_day() {
dataLengthOutput=8
(( daynr = 0 ))
(( crc = $GetDailyDataCRC+$daynr ))
GetDataCMD=$GetDailyDataCMD1\\x`printf "%02X" $1 $daynr`$GetDailyDataCMD2\\x`printf    "%02X" $1 $crc`
receive_data
if [ $rcvd = "chk" ]; then
# Profit [kWH]
(( Etoday = data[9+7] * 256 + data[9+6] ))
# Runtime [h:mm]
(( Htoday = data[9+5] * 5 ))
# CO2
(( CO2 = Etoday * $CO2perc / 100 ))
fi
}



# Main Program
main(){
#set time variables
MTIME=`date +%M`
HTIME=`date +%H`

# Configure serial port
init_comport

#Store file contains data needed for calculating totals etc
#Internally an array is used, values are:
#0=Active flag
#1=WtotAct
#2=HtotAct
#3=WtotLog
#4=HtotLog
#fill array
store=(`cat $STORE`)

get_current_data

if [ $rcvd = "chk" ]; then
if (( ! store[0] )); then
  echo -e `date -R`":   Waking up; Inverter started.\r" >> $LOG
  store[0]=1
  if (( USE_30DAYS )); then
    get_last_30_days
  fi
  if [ ! -f $PVDIARYCSV ]
  then
    create_pvdiary
  fi
  if (( USE_EMAIL )) && (( USE_EMAwake )); then
    email_send "Bericht van uw zonnepanelen : ontwaken." "I'm awake now !\n\nUw Mastervolt Omvormer\n"
  fi
fi

# Remember 'old-values' for calculating PVDiary inputs
(( store[5] = store[1] ))
(( store[6] = 0 ))

# Put total values into array for calculating daily profit
store[1]=$Etot
store[2]=$Htot

convert_errorbits
get_current_day
create_actual_page
rrd_update
fill_pvdiary
fill_sql
pvoutput_live_update
fi

#Write message before sleep
if [ $rcvd = "no" ] && (( ! retry_counter )) && (( store[0] )); then
echo -e `date -R`":   No reaction from Inverter; entering sleep\r" >> $LOG
create_offline_page
store[0]=0
fi 

#Write 0-values in PVDiary-file
if [ $rcvd = "no" ] && (( ! retry_counter )) ; then
(( store[5] = store[1] ))
(( store[6] = 0 ))
fill_pvdiary
(( store[5] = store[1] ))
(( store[6] = 0 ))  
fill_sql    
(( store[5] = 0 ))
fi 

#Run timebased scripts (internal cron)
if [ $HTIME = 23 ] && [ $MTIME = 00 ]; then
fill_csv
fi  
if [ $MTIME = 00 ] && (( USE_RRD )); then
graph
fi
if [ $MTIME = 00 ] && (( store[0] )) && (( USE_EMAIL )) && (( USE_EMAhour )); then
email_send_actual "Bericht van uw zonnepanelen : productie tot nu toe."
fi

#storing variables to working file
echo ${store[0]} ${store[1]} ${store[2]} ${store[3]} ${store[4]} ${store[5]}${store[6]}> $STORE 
}

#What to do ?
case $1 in
"help"   ) help;;
"create" ) create;;
"draw"   ) graph;;
*        ) main;;
esac

Answer 1

$ awk -F, '{print "Today = " $1 "\nTime = " $2 "\nHertz = " $5}' file
Today = 24092014
Time = 17:21
Hertz = 49.96