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How to loop this process?

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# 1  
Old 11-14-2010
How to loop this process?
for two txt files, f1 and f2, I like to do the following
Code:
grep "abcde" f1 > abcde$f1
grep "xyz" f1 > xyz$f1

can I use a loop to get this done? Thanks
Code:
 
for i in f1 f2
do
grep "abcde" $i > abcde$i
grep "xyz" $i > xyz$i
...
done

Last edited by Scott; 11-14-2010 at 02:59 PM.. Reason: Code tags, please...
# 2  
Old 11-14-2010
Good, but your loops are not equivalent. Use a constant separator in you output, like $f1.abcde. Having the file name first is more intuitive, too.
This User Gave Thanks to DGPickett For This Post:
ksgreen
# 3  
Old 11-14-2010
Thank you for suggestion!

Additional question

I like to loop a list of files which named file1, file2, file3, file4, etc

if I like to loop them all over
Code:
for f in file1, file2, file3, file4
do 
echo "processing" $f
done

how to use a regular expression to loop file$i instead?
Code:
for  i in (1:5) 
do
echo "processing file" $i
done

would this work? thanks
Last edited by Scott; 11-14-2010 at 03:00 PM.. Reason: Code tags
# 4  
Old 11-14-2010
bash solution
Code:
for i in {1..5}
do 
   echo "processing file" $i
done

This User Gave Thanks to danmero For This Post:
ksgreen
# 5  
Old 11-14-2010
And you can use this bash/ksh Smilie
Code:
for i in $(seq 1 5)
do
echo "processing" $i
done

This User Gave Thanks to ygemici For This Post:
ksgreen
# 6  
Old 11-14-2010
seq is not a shell keyword Smilie
# 7  
Old 11-15-2010
yes seq is not shell builtin or keyword..
seq is an utility that portion of gnu coreutils package Smilie
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