Help with cut command


 
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# 1  
Old 05-13-2010
Help with cut command

Hi guys,

I have a line of digits with no delimiters (but fixed record length for each fields). for example

aaaa1234bbbb

field 1 is 4 digit long, field 2 is 4 digit long and so on.

I need to cut fields 1 and 3, and while outputting I need a delimiter between the fields.

I can cut the fields, no problem

cat a.txt | cut -c1-4,6-8

I get aaaabbbb

but I need to put a delimiter between the fields.

I need to get aaaa,bbbb

Any help is much appreciated.

Cheers,
Ace
# 2  
Old 05-13-2010
one way
Code:
awk '{ print substr($0,1,4) "," substr($0,9,4)}'  inputfile > outputfile

# 3  
Old 05-13-2010
Code:
$ while read line; do
> a=$(echo $line | cut -c1-4)
> b=$(echo $line | cut -c9-12)
> echo $a,$b
> done < a.txt
aaaa,bbbb
cccc,dddd
$

# 4  
Old 05-13-2010
That's great. Many thanks guys.
 
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