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Deleting First 10 letters in a line

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# 8  
Old 06-28-2008
Quote:
echo "123456789ABC" > testA && cat testA
My output is:

Quote:
123456789ABC
-----------------------------

Now run:

Quote:
cat testA |sed 's/^..........//' > testB
My output is:

Quote:
BC
in testB
# 9  
Old 06-28-2008
For deleting first n number of chars
For deleting first n number of chars, instead of writing 'n' dots(.), following pattern can be used -

^.\{n\}
so the sed can be changed to

cat testA |sed 's/^.\{n\}//' > testB
# 10  
Old 07-07-2008
Quote:
Originally Posted by hemant29
For deleting first n number of chars, instead of writing 'n' dots(.), following pattern can be used -

^.\{n\}
so the sed can be changed to

cat testA |sed 's/^.\{n\}//' > testB

if you want to change all the file name as u required then this might help u

ls | while read file
do
file_req=`echo ${file} | sed 's/^.\{n\}//' `
mv ${file} ${file_req}
done
Smilie
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