Hello,

I need to insert varying lines (i.e. these lines are an output of another script) between lines starting with certain fields.
An example to make it more clear.

This is the file where I wanna insert lines:
(save it as "input.txt")

Code:

ContrInMi_c_mir 	 2 	 10066	181014 	 200750
ContrMidl_y_cut 	 2 	 12345	201085 	 220988
ContrMiRi_c_mir 	 2 	 13206	221155 	 240891
ContrIdex_p_mir 	 1 	 765	241225 	 260962
ContrMidl_b_cut 	 1 	 2686	261296 	 281032

This is the file ("insert.txt") containing the lines that should be inserted:

Code:

texta: ContrInMi_c_mir
textb: ContrMidl_y_cut
textins: sec_buttonpress 	 3 	 15147
texta: ContrIdex_p_mir
textb: ContrMidl_b_cut
textins: sec_buttonpress 	 2 	 14605

And this is the script which calls at the end the .awk file "dothis.awk"

Code:

#!/bin/bash
declare -a Arraytexta
declare -a Arraytextb
declare -a Arraytextins
nrLines=`awk 'END {print NR}' insert.txt`
nrLines=`expr ${nrLines} - 2`

for ((i=1; i<=$nrLines; i++)); 
do 
countb=`expr ${i} + 1`
countins=`expr ${i} + 2`
Arraytexta[i]=`sed -n "${i} p" insert.txt | awk 'BEGIN{FS=":"}{print $2}'`
Arraytextb[i]=`sed -n "${countb} p" insert.txt | awk 'BEGIN{FS=":"}{print $2}'`
Arraytextins[i]=`sed -n "${countins} p" insert.txt | awk 'BEGIN{FS=":"}{print $2}'`
gawk -v textins="${Arraytextins[i]}" -v texta="${Arraytexta[i]}" -v textb="${Arraytextb[i]}" -f dothis.awk input.txt" > output.txt
done

Here is dothis.awk

Code:

BEGIN{
	flg=0
}
{
	if (flg==1 && $1==textb || $1=="sec_buttonpress"){
		if($1==textb  || $1=="sec_buttonpress"){
			print textins
		}
	}
	if ($1==texta){
		flg=1
	}
	print $0
}
END{
	
}

So, basically what I try to do is: I search for the lines starting with "texta" and check if the following line starts either with "textb" or - if there has been a line previously inserted (which can happen) - if this starts with "sec_buttonpress". If I found these lines then the "textins" should inserted.
Actually, an extension to cover all needs would be to check also if the second field in the file "input.txt" contains "1". If so then the line (only fields 2 and 3) to be inserted after should actually replace the fields 2 and 3 of this line.

For some reason, "dothis.awk" is not working: it inserts at the end of teh "input.txt" file always the same 2 fields: containing a 6digit number and a "0".

What am I doing wrong?

Thanks a lot in advance for help and advices!!!


tempestas