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Splitting with bash...

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# 1  
Old 04-18-2013
Splitting with bash...
hello there,

i've tried to format a dump-file to the right format.

Here is how the source look like:
Code:
sometext:1102:F761943D471AA8183C5A42D81E4E281B:72E2A45309E15DE1E58F1A6D4FA666B7:::
someother:1108:183C5A42D81E4E2F761943D471AA881B:E1E58F1A72E2A45309E15D6D4FA666B7:::

so the first thing i did is
Code:
cat textfile.txt |cut -d: -f4 >textfile2.txt

after that, it looks like this
Code:
72E2A45309E15DE1E58F1A6D4FA666B7
E1E58F1A72E2A45309E15D6D4FA666B7

now my question: i need to cut this exact in the middle after 16 characters,
the file should look like this then (for each
Code:
72E2A45309E15DE1
E58F1A6D4FA666B7
E1E58F1A72E2A453
09E15D6D4FA666B7

and i have no idea how to do this.

any ideas?

regards

muelli
Last edited by jim mcnamara; 04-18-2013 at 07:56 AM..
# 2  
Old 04-18-2013
Hi
try to add this awk:
Code:
cat textfile.txt |cut -d: -f4 |awk '{ printf "%s\n%s\n",substr($1,1,16),substr($1,17);}'>textfile2.txt

In a single command:
Code:
awk -F: '{ printf "%s\n%s\n",substr($4,1,16),substr($4,17);}' textfile.txt >textfile2.txt

Last edited by franzpizzo; 04-18-2013 at 07:49 AM..
# 3  
Old 04-18-2013
Code:
cut -c1-16

# 4  
Old 04-18-2013
Code:
#! /bin/bash
while IFS=':' read a b c req e
do
    echo ${req:0:16}
    echo ${req:16}
done < file

# 5  
Old 04-18-2013
Code:
cut -d: -f4 | fold -w16

If there's a chance that fa carriage return, backspace, or tab character can appear in the 4th field, you'll want to use fold's -b option.

Regards,
Alister
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