cat Input2.txt
ID:12:23:00Q EU232 2342 234 123 231 na na na aa1;ab2
ID:11:22:00E EU112 1232 211 112 233 na na na ab2;ac3
ID:19:24:00S EU121 569 100 101 244 na na na aa1;ac3
ID:11:33:00S EU456 332 120 99 221 na na na ac3
Now, I replaced the "na" if present in the last column.
thank you for you help. The problem is that my item list contains a few hundred entries for each position. Meaning at position $7 I have over 400, at position $8 there are about 100 and $9 has > 800. Any idea how I could do this?
Just to be clear : input_file's 7th column is what you call 'item list', isn't it?
Do you also mean that you might have aa1 as well as foo, bar, and etc entries only for $7? ab2, fool, bars, etcs for $8, ...?
Thanks for clarifying.
thank you for you help. The problem is that my item list contains a few hundred entries for each position. Meaning at position $7 I have over 400, at position $8 there are about 100 and $9 has > 800. Any idea how I could do this?
When we see one of your ~1300 values, how do we know whether it is supposed to go into field 7, 8, or 9?
yes, position $7 can have a list of possible values not just aa1. The same is true for $8 and $9. I was thinking I could first work on position $7. Save the file and continue with the next one. Your suggestion works the problem is I would have to create a text file for all possible values, safe it and run it. I was wondering if you know a better way? I tired a for loop (and an array) to get all the items for e.g. $7 but it did not work.
---------- Post updated at 12:37 PM ---------- Previous update was at 12:31 PM ----------
Dear Don Cragun,
You are right. I was thinking of doing one list after the other. Like I tried to describe in my last post.
Code:
for ITEMS in 'cat item_at_position_7.list'
do
???
done < in.txt > out7.txt
Assuming that you have files item_at_position[789].list containing valid values for each of those fields (one value per line), such as: item_at_position7.list:
awk -v outf="Output.txt" '
BEGIN { OFS=" " }
# Replace "na" in field fieldnum with value.
# With alternative else clause, print diagnostic if the field has already been set.
function add(value, fieldnum) {
if($fieldnum == "na") $fieldnum = value
else $fieldnum = $fieldnum ";" value
# Replace above line with the following four lines if only one value is allowed per output field.
# else { printf("Line %d, multiple value %s for field %d dropped\n",
# FNR, value, fieldnum)
# exitcode = 1
# }
}
FNR == 1 { # Increment input file number...
file++
}
file <= 3 { # Read values from one of the list files...
list[file,$1]
next
}
# Process main input file...
{ # Split the last field into list values.
n = split($7, values, /;/)
# Initialize last four fields.
$10 = $7
$7 = $8 = $9 = "na"
# Process values found on this line.
for(i = 1; i <= n; i++)
if((1,values[i]) in list) add(values[i], 7)
else if((2,values[i]) in list) add(values[i], 8)
else if((3,values[i]) in list) add(values[i], 9)
else { printf("Line %d: value: %s not recognized\n",
FNR, values[i])
exitcode = 1
}
# Print the updated line.
print > outf
}
END { exit exitcode
}' item_at_position_[789].list Input1.txt >&2
prints the following diagnostic to the standard error output:
Code:
Line 5: value: abc not recognized
Line 6: value: ad1 not recognized
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