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Edit a Text File and Replace a string

vramananx

Hi

I want to open a text file and replace a particular pattern with another

I know i can use the regex to do the search and replace

i also know how to open the file

the thing i am not able to figure out is, how to read the entire text file

I am thinking I can read one line at a time and do regex for each line, then I can write the result to a new file

I need help in how to do this

 here is what I want to do

in = inport("file.txt")

lineread one line at a time assign to a string

use regex replace

fprintf the result to a new file

I also appreciate if anyone can suggest a better method

regards

Venkata

  • Hi Venkata, if i interprete correctly, you want to do a "read" of the entire text file first

    then followed by a "replace"?

    you may store each line of the input (from the file, as string)

    to a temp_list first, then compile the rex (or others required by your function),

    and then make a foreach loop to do the replacement.

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