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a question about a regular expression

 
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# 1  
Old 11-14-2010
a question about a regular expression
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?

Thank you.
Last edited by pludi; 11-14-2010 at 02:20 PM..
# 2  
Old 11-14-2010
No need for a regex, just wildcard it like for f in file? or for f in file*
# 3  
Old 11-14-2010
Thank you. I may not express very well

I still need $i (1, 2, 3, ...) inside of the loop for writing.

would this work?
Code:
for i in (1:5)  #not sure this is the right way?
do
echo "processing file" $i
done

Last edited by Scott; 11-15-2010 at 11:22 AM.. Reason: Code tags
# 4  
Old 11-14-2010
Code:
#!/bin/bash

for i in $@
do
test=`echo ${i#*file}`
echo "processing" $i
echo $test
done

Try this one, using $test, you can access 1,2 later in your script.
Hope this helps! Smilie
Last edited by Scott; 11-14-2010 at 03:43 PM.. Reason: Code tags, please...
# 5  
Old 11-16-2010
Do you mean something like this?

Code:
for i in 1 2 3 4 5
do
  echo "processing file${i}"
  some_command "$file${i}"
done

$i (or ${i}) is still available as a digit if you need it...
 
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