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removing files with certain number in the first row


 
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# 1  
Old 10-05-2009
removing files with certain number in the first row

Hello!

I have 32000 files in a directory and want to remove those with first row beging with 0.00; file names are in numbers from 1 through 32000; I have coded the following but it gives me error:

Code:
while ( i <= 32000 )
if (head -1 $i ==0.00) rm $i
end

Well, i am sure even if this works it takes a long time. Any idea on modifying this or other methods (like find command)?

Thank you
# 2  
Old 10-05-2009
something like?

Code:
for file in $(ls -1 *)
do
found=$(head -1 $file | grep '^0\.00')
if [ "$found" ]; then
rm -f $file
fi
done

# 3  
Old 10-05-2009
Thanks! but it gives me an error, i.e Variable syntax?!
# 4  
Old 10-05-2009
Don't do that!

If it gives you an error, show the error!!!
# 5  
Old 10-05-2009
Illegal variable name!! This is the only message shows up...
# 6  
Old 10-05-2009
I think this would work: -

Code:
grep ^0.00 * |  cut -d":" -f1 | xargs -i rm -f {}



---------- Post updated at 09:58 PM ---------- Previous update was at 09:43 PM ----------

Actually with 32000 files this would probably be safer: -

Code:
rm -f $(ls | xargs -i grep -l ^0.00 {})

# 7  
Old 10-05-2009
Dear Steadyonabix;

error message shows up for the second code, Illegal variable name!!
The first code seemingly removes the first field, but i want the file o be deleted.

thanks,

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