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yea.. the first sed command works pretty fine..

haha! I also don't know why the double quote can't work. Anyway, still can't work.
same error msg.

---------- Post updated at 05:25 PM ---------- Previous update was at 05:24 PM ----------


...

#!/bin/sh

INPUT () {
echo "Please enter line number: "
read LINE

echo "Please enter column number that you want to modify: "
read COLUMN

head -$LINE dataf > line1;
...

Thanks but still can't..

It still doesn't work. Anyway, thanks for ur effort! :)

I tried but it doesn't work. It gave me this:
sed: command garbled: s/

#!/bin/sh

INPUT () {
echo "Please enter line number: "
read LINE

echo "Please enter column number that you want to modify: "
read COLUMN

head -$LINE dataf > line1;
...