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How to split a string with no delimiter


 
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# 1  
How to split a string with no delimiter

Hi;

I want to write a shell script that will split a string with no delimiter.
Basically the script will read a line from a file.

For example the line it read from the file contains:
99234523

These values are never the same but the length will always be 8.

How do i split this string into 4 sections of 2?

Thanks
# 2  
Try:
Code:
perl -pe 's/(..)/\1 /g' file

# 3  
Code:
% fold -2 infile
99
23
45
23

# 4  
Bash, ksh93, ...
Code:
while read line
do
      a=${line:0:2}
      b=${line:2:2}
      c=${line:4:2}
      d=${line:6:2}
done

# 5  
Sorry forgot to say this will be a shell script

Thanks
# 6  
But what shell?
# 7  
Code:
echo "99234523" |awk 'BEGIN{FIELDWIDTHS="2 2 2 2"}{print $1 RS $2 RS $3 RS $4}'
99
23
45
23


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