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This is the best forum of all time :D

Both solutions worked. Thank you.

I asked this before, but my problem got more complicated. Heres what I am trying to do:

I'm trying to replace a string at a certain location with another string.

Heres the file I'm trying to...

Incredible! Once again. Thank you.

Now next question! ;D

How would I put a variable in place of the row and column to designate any row or column?

IT WORKED! I'm so sorry. I forgot sed doesn't know how to read empty files and I left it empty.

lol This is the best forum ever. Thanks guys. :D

Nothing! :wall:

That should have worked. Maybe I'm putting in the wrong input file or something. Give me an example on how I should output to a file on the sed statement.

The digit 1 is there. Where would I place the newchar?

Scrutinizer, the problem with sed, is that when I have to move it to a column, there is more than one occurence of the designated string, so...

For some strange reason, your code isn't working... Maybe is it because I'm on Cygwin? I can't see any output in my file when I open it.

Oh that was just supposed to contain an escape code.

ahamed101, I don't know why your codes not working. Seems legit though.

Well the idea is that im creating a paint program. So the file starts as a canvas of black escape codes. So here is what the input file would look like:

\E[0;40m \E[0;40m \E[0;40m \E[0;40m...

What about grep, or awk? Is there anything I can do?

sed can't work with columns?

Can sed output an empty file?

The input is supposed to be an empty file.

Then the script is supposed to output a text string at the 3rd line, 10th column.

I keep getting no output.

Did what you said. Made a temporary file. I see nothing outputted to the file. Can you give me what you put for it to work?

sed "${3} s/./${\n}/${10}" <test.txt >test.txt

The example is on my first post

I need to insert, or replace a character at a designated row and column in a text file with sed. Heres the code:

sed "${row} s/./${newchar}/${col}" >test.txt

Everytime I use this code on...

For example, I want to open a text file, move to the 2nd row, 10th column in the file, and put the escape code "\n".

Wow. Thanks :D

Can you be specific on how to move to a column, then to a row with sed?

Can I use "sed" to go to a certain column or row in a text file and delete or add text?

Let me try my best to give you a picture of what I'm trying to do. Once again I'm sorry for the essay thats coming up.

I programmed a rather large library of script functions to deal with input,...

So. Any ideas? Is what I'm trying to do possible?

I've already done that. I created the a temporary file to hold all paint routines. When the user wants to save the file, the temporary file is exported. Problem is formatting the file so it displays...