EmEditor opened my file just fine but when I tried to do Find and Replace, it froze my laptop for 40 minutes and I had to kill the process. Replaces all occurrences of a set of characters in the specified string with another set of characters to create a new string. public string Replace (char oldChar, char newChar) member this.Replace : char char -> string. public: System::String Replace (char oldChar, char newChar) C.
I have also tried a trial version of EmEditor, authors of which claim that it can work with very large 200Gb+ files. Replace (Char, Char) Returns a new string in which all occurrences of a specified Unicode character in this instance are replaced with another specified Unicode character. It took FART 21 minutes - still not bad!Ĭertainly a great little tool to add to your toolbox! Then I processed another big file - 21Gb this time.
Well, it did the same thing in just 3 minutes! Quite a difference! All I had to do is to download it and use this command which would replace all the occurrences of aaa with bbb: fart.exe -c input.csv "aaa" "bbb" Now leaving name of the tool aside, I was a bit skeptical about it but gave it a try.
Then I stumbled upon a free little command tool called FART - Find And Replace Text. NET Streamreader library to read lines one by one but I think a lot of people agreed that ReadCount works better since it is doing reads/writes in batches. Rob mentioned that using a filter and reading a file in batches (using ReadCount) would provide very good performance. It took 19 minutes on my laptop to run which was not too bad. SET /P MYTEXTENTER TEXT: SET T2PP SET NEWTEXTTEXT:T. What I have is the following but it seems to do little for me. This utility can also replace strings in file or. I want the script to replace all the t's to p's. Windows (WinForms) application to replace a string with another inside a file or multiple files in a directory. Get-Content -ReadCount 1000 $filepath | num2x | add-content $newfilepath I am trying to replace all instances of a character in a string of text with another character but I'm not succeeding. I stumbled upon a comment made by Rob Campbell here and quickly created this script in PowerShell ISE (love it!): $filepath = "input.csv" This is a pretty easy task if you are on Linux (using tool like sed) but it is not that easy if you are on Windows.įirst, I tried my favorite PowerShell. I needed to replace a specific text string in a 6.5Gb file for one of my projects.