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# 1  
Old 01-24-2012
while statement problem

Hi,
Here is a big head scratcher for me....

I'm creating a loop with while reading lines from a file called example.txt:

Code:
#!/bin/sh

 while read line
do
 some command > another file     ----- output to another file
done < example.txt

I would like that another file to be unique for every line executed

Is that possible at all?

thanks all Smilie

Last edited by methyl; 01-24-2012 at 06:58 AM.. Reason: please use code tags
# 2  
Old 01-24-2012
Hi,
you can achieve that using the $RANDOM variable appending to the file name

you can check the random variable exists in your setup or not

Code:
$ print $RANDOM $RANDOM
29302 8082


it will generate two different number that means it support that

now u can create a file with filename."_"$RANDOM

thanks,
venkat
# 3  
Old 01-24-2012
Unfortunately it does not support it...
# 4  
Old 01-24-2012
Hi,
then do with filename appending with date
Code:
$ date +'%m%d_%H%M%S'
0124_120358

like filename."_"`date +'%m%d_%H%M%S'`

ex:-
Code:
$ echo "filename"_"`date +'%m%d_%H%M%S'`"
filename_0124_120542

thanks,
venkat
# 5  
Old 01-24-2012
I think it is my fault not explaining myself very well.
The file name should be different but from a range of predefined values.

As an example the filenames may be contained in another file and each file1 be called on first loop, file2 on second etc.
# 6  
Old 01-24-2012
Or you could also use a counter:
Code:
c=1
while read line
do
    command > file_$c
    c=$(($c + 1))
done < example.txt


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