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[awk] split file1 and save it as var from file2

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Top Forums Shell Programming and Scripting [awk] split file1 and save it as var from file2
# 1  
Old 07-24-2012
[awk] split file1 and save it as var from file2
I have 2 files:

file_1:
Quote:
Head;track1;track2;track3;
date1;vol2;vol4;vol9;
date2;vol5;vol0;vol1;
date3;vol7;vol2;vol5;
file_2:
Quote:
Head1
artV1 track1
artV2 track2
artV3 track3
expected result:
name file:
"artV1"
Quote:
Head;track1;
date1;vol2;
date2;vol5;
date3;vol7;
"artV2"
Quote:
Head;track2;
date1;vol4;
date2;vol0;
date3;vol2;
etc.

I have:
Quote:
FS=";";
ORS=";\n";
OFS = ";";
k=0;

while (getline < file_1 == 1) {

if (k==0) {
split($0,tmpp);
hm=NF-1;
}
k++;

for (j=2; j <= hm; j++) {

while (getline z < file_2 == 1) {
split(z,tmpq," ");

if (tmpp[j]==tmpq[2]) {
out=tmpq[1];
}
}
print $1,$j > out;
}
}
but why don;t work save to file 'out'??


when use this, it's look great but file name is wrong; is track1 not artV1 Smilie
Quote:
FS=";";
ORS=";\n";
OFS = ";";
k=0;

while (getline < file_1 == 1) {

if (k==0) {
split($0,tmpp);
hm=NF-1;
}
k++;

for (j=2; j <= hm; j++) {
print $1,$j > tmpp[j];
}
}
# 2  
Old 07-24-2012
Try this:
Code:
awk 'FNR==NR{if(FNR>1) fil[$2]=$1;next} 
{
 for(i=2;i<NF;i++)
 {
  if(FNR==1){filepos[i]=fil[$i]}
  print $1 FS $i FS > filepos[i]
 }
}' file2 FS=";" file1

I've assumed that the maximum number of files required to be generated is within the max. open files limit for your awk implementation (should not be a big concern!).

I've also assumed that file2 has all the possible values occurring in record 1 of file1.
Last edited by elixir_sinari; 07-24-2012 at 11:13 AM..
# 3  
Old 07-24-2012
Ok it's work, but how it us in awk file:
this don't work:
Quote:
BEGIN{
}

{
file2="/tmp/file2";
file1="/tmp/file1";

while((getline < file2) == 1){
if (FNR==NR) {
if(FNR>1) {
fil[$2]=$1;
}
}
}

FS=";";
while((getline < file2) == 1){
for(i=2; i<NF; i++) {
if(FNR==1) {
filepos[i]=fil[$i];
}
print $1 FS $i FS > filepos[i];
}

}
}

END{
}
# 4  
Old 07-25-2012
It's a bit tedious job to do it the way you want it done. Smilie Can't use FNR/NR in this case because getline will not set these variables.
Code:
cat split.awk

BEGIN {
while(getline < "fil2")
 if(NF==2)
  fil[$2]=$1
close("fil2")
FS=";"
while(getline < "fil1")
{
 if($0 ~ /^Head/)
  for(i=2;i<NF;i++)
   filepos[i]=fil[$i]
 if($0 ~ /^date/)
  for(i=2;i<NF;i++)
   print $1 FS $i FS > filepos[i]
}
}

Last edited by elixir_sinari; 07-25-2012 at 04:16 AM..
This User Gave Thanks to elixir_sinari For This Post:
ffresz
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