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Multiple output with awk.

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# 1  
Old 01-08-2010
Multiple output with awk.
Hi all


I have a file - 1.txt, which contains some text, for example:
aaaaaa
bbbbbb
cccccc


I need to pass ONE! time over the file and create three new files:
1 - a.txt
2 - b.txt
3 - c.txt

a.txt will contain aaaaaa string,
b.txt will contain bbbbbb string and
c.txt will contain cccccc string.

How can I do it from command line?
Thanks in advance.
# 2  
Old 01-08-2010
From the command line, you could do it this way:

Code:
# while read line
> do
> first_char=`echo $line | cut -c1`
> echo $line > ${first_char}.txt
> done < 1.txt

The only problem I see with this is if you have two lines starting with the same character (and case), then it would overwrite the previous one.
# 3  
Old 01-08-2010
Code:
awk '{print >> (substr($0,1,1)".txt")}' infile

or bash
Code:
while read line; do echo ${line} >> ${line:0:1}.txt;done < infile

# 4  
Old 01-08-2010
Code:
awk -F "" '{print > $1".txt"}' infile

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