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#Windows command find file how to
#Windows command find file update

I've included a number of options in the utility that make it quite powerful. The JScript regex capabilities make it very powerful, especially the ability of the replacement text to reference captured substrings from the search text.

#Windows command find file how to

Here is a trivial example of how to replace foo with bar in test.txt, assuming REPL.BAT is in your current folder, or better yet, somewhere within your PATH: type test.txt|repl "foo" "bar" > REPL.BAT simply reads stdin, performs a JScript regex search and replace, and writes the result to stdout. It is also very fast, especially when compared to pure batch solutions. The purely native script does not require installation of any 3rd party executeable, and it works on any modern Windows version from XP onward. I have written a small hybrid JScript/batch utility called REPL.BAT that is very convenient for modifying ASCII (or extended ASCII) files via the command line or a batch file.

JREPL.BAT 7.0 and above natively supports unicode (UTF-16LE) via the /UTF option, as well as any other character set, including UTF-8, via ADO!!!!

#Windows command find file update

Note - Be sure to see the update at the end of this answer for a link to the superior JREPL.BAT that supersedes REPL.BAT Update Apparently modern windows systems have PowerShell built in allowing you to access this directly using (Get-Content myFile.txt) -replace 'foo', 'bar' | Out-File -encoding ASCII myFile.txt The location of it on my machine is C:\WINDOWS\system32\WindowsPowerShell\v1.0 Powershell.exe should be part of your PATH statement already, but if not you can add it.

-encoding ASCII prevents transcribing the output file to unicode, as the comments point out.

| Out-File myFile.txt pipes the output to the file myFile.txt.

-replace 'foo', 'bar' simply runs the replace command to replace foo with bar.

(gc myFile.txt) reads the content of myFile.txt ( gc is short for the Get-Content command).

" is a command line arg for powershell.exe containing the command to run powershell starts up powershell.exe, which is included in Windows 7.Here is the script I used to find/replace all instances of text in a file: powershell -Command "(gc myFile.txt) -replace 'foo', 'bar' | Out-File -encoding ASCII myFile.txt" I have Windows 7, which comes with PowerShell built-in. A lot of the answers here helped point me in the right direction, however none were suitable for me, so I am posting my solution.