Shell Programming and Scripting

several hundred
lines precede 
the following interesting 
Bla xxx:
Blub[0][0] = -7537.37687
Blub[0][1] = -100.644746
Blub[0][2] = -3247.61954
.
.
.
Blub[0][274] = 1324.82567
Blub[1][0] = -967.12936
.
.
.
Blub[13][274] = 805.250982

#!/bin/bash

### one example file:
declare i=TestFile.txt

datend=`awk 'END { print NR }' ${i}`
findline=`awk '/^Bla xxx:/ {zeile=NR} END{print zeile}' ${i}`
findline=`expr ${findline} + 1`
nolines=`expr ${datend} - ${findline}`
### either:
#cat $i | grep "^Bla xxx:" -A $nolines | tail -$nolines  > ${i%.*}_tmp.txt
### or:
awk -F: 'NR >= v1 && NR <= v2' v1="${findline}" v2="${datend}" $i > ${i%.*}_tmp.txt

####At this point I have only the last column extracted.
#awk '{print $3}' $ECHO "${i%.*}_tmp.txt" > ${i%.*}_onlynumbers.txt

for (( j=0; j<=13; j++ ))
do
findfirst=`awk '/^Blub && $j/ {line=NR} {print line}' $ECHO "${i%.*}_tmp.txt"`	
findlast=`awk '/^Blub && $j/ {line=NR} END{print line}' $ECHO "${i%.*}_tmp.txt"`	
awk -F: 'NR >= v3 && NR <= v4' v3="${findfirst}" v4="${findlast}" $ECHO "${i%.*}_tmp.txt" >> test.txt
### or using this approach:
awk -v 'FS=^Bar[?|]?' '{print $2}' $ECHO "${i%.*}_tmp.txt" >> test.txt
done

BEGIN {
  FS="(\\[)|(\\])|(=)"
  OFS=","
}
NF==6 {
  a[$2,$4]=$NF
  maxI=($2>maxI)?$2:maxI
  maxJ=($4>maxJ)?$4:maxJ
}
END {
  for(i=0;i<=maxI;i++)
    for(j=0;j<=maxJ;j++)
       printf("%s%c", a[i,j], (j==maxJ)?ORS:OFS)
}