How to replace a string at specific line number in a text file?
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%%.text file contain%%%
In this
part a
simple
method for
floating‐point
to fixed‐point
%%%new .text file contain%%
In this
part a
simple
method for
/////newly added string///
to fixed‐point
how to replace the string at specific line number?
3 commentaires
Rik
le 31 Jan 2020
Adding the names of frequent contributors as tags only proves you have seen several questions, which means you should know how to write a complete question. It generally does not attract actual attention.
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Andrew Janke
le 31 Jan 2020
Try this:
- Read in the whole text file
- Split it on \r?\n to break it in to lines
- Now you have an array of lines, so you can edit line(i) to modify just the i-th line
- Use strrep or regexprep to modify the contents of that line
- Use strjoin() to join all the lines back together into a single string
- Write that string out to your new file
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