How to create a sequence of files whose names come from a numerical sequence with predetermined intervals?

Question

I need to create a sequence of files. Ex :1.log, 2.log, 3.log, 4.log and so on.

I need to define the initial value and the final value, then it creates for me inside the desired folder. Below is the code more or less with the idea I want:

#!/bin/sh
echo -e " DIGITE O NUMERO INICIAL: "
read num1

echo -e " DIGITE AGORA O NUMERO FINAL: ";
read num2

#num3 = num1
#num4 = num2
cd /var/actus/digital/nfce/inutilizar/
touch {$num1..$num2}.log
ls /var/actus/digital/nfce/inutilizar/

It is generating only one file. For example, if you had set num1 equal to 1 and num2 equal to 2, is generating {1..2}.log, and need to generate 1.log and 2.log.

Answer 1

Just use seq:

for i in $(seq $num1 $num2)
do
    touch $i.log
done

seq $num1 $num2 generates a numerical sequence ranging from $num1 until $num2. Then we make a for to iterate in this sequence, creating the files.

Notice that the command seq is among $( ), because this is the syntax of command substitution, thus the for will be made in the result of seq (which in this case are the numbers).