Batch / Find And Edit Lines in TXT file
Solution 1
On a native Windows install, you can either use batch(cmd.exe) or vbscript without the need to get external tools. Here's an example in vbscript:
Set objFS = CreateObject("Scripting.FileSystemObject")
strFile = "c:\test\file.txt"
Set objFile = objFS.OpenTextFile(strFile)
Do Until objFile.AtEndOfStream
strLine = objFile.ReadLine
If InStr(strLine,"ex3")> 0 Then
strLine = Replace(strLine,"ex3","ex5")
End If
WScript.Echo strLine
Loop
Save as myreplace.vbs and on the command line:
c:\test> cscript /nologo myreplace.vbs > newfile
c:\test> ren newfile file.txt
Solution 2
There is no search and replace function or stream editing at the command line in XP or 2k3 (dont know about vista or beyond). So, you'll need to use a script like the one Ghostdog posted, or a search and replace capable tool like sed.
There is more than one way to do it, as this script shows:
@echo off
SETLOCAL=ENABLEDELAYEDEXPANSION
rename text.file text.tmp
for /f %%a in (text.tmp) do (
set foo=%%a
if !foo!==ex3 set foo=ex5
echo !foo! >> text.file)
del text.tmp
Solution 3
ghostdog74's example provided the core of what I needed, since I've never written any vbs before and needed to do that. It's not perfect, but I fleshed out the example into a full script in case anyone finds it useful.
'ReplaceText.vbs
Option Explicit
Const ForAppending = 8
Const TristateFalse = 0 ' the value for ASCII
Const Overwrite = True
Const WindowsFolder = 0
Const SystemFolder = 1
Const TemporaryFolder = 2
Dim FileSystem
Dim Filename, OldText, NewText
Dim OriginalFile, TempFile, Line
Dim TempFilename
If WScript.Arguments.Count = 3 Then
Filename = WScript.Arguments.Item(0)
OldText = WScript.Arguments.Item(1)
NewText = WScript.Arguments.Item(2)
Else
Wscript.Echo "Usage: ReplaceText.vbs <Filename> <OldText> <NewText>"
Wscript.Quit
End If
Set FileSystem = CreateObject("Scripting.FileSystemObject")
Dim tempFolder: tempFolder = FileSystem.GetSpecialFolder(TemporaryFolder)
TempFilename = FileSystem.GetTempName
If FileSystem.FileExists(TempFilename) Then
FileSystem.DeleteFile TempFilename
End If
Set TempFile = FileSystem.CreateTextFile(TempFilename, Overwrite, TristateFalse)
Set OriginalFile = FileSystem.OpenTextFile(Filename)
Do Until OriginalFile.AtEndOfStream
Line = OriginalFile.ReadLine
If InStr(Line, OldText) > 0 Then
Line = Replace(Line, OldText, NewText)
End If
TempFile.WriteLine(Line)
Loop
OriginalFile.Close
TempFile.Close
FileSystem.DeleteFile Filename
FileSystem.MoveFile TempFilename, Filename
Wscript.Quit
Solution 4
If you are on Windows, you can use FART (Find And Replace Text). It is only 1 single *.exe file (no library needed).
All you need to is run:
fart.exe your_batch_file.bat ex3 ex5
Solution 5
@echo off
set "replace=something"
set "replaced=different"
set "source=Source.txt"
set "target=Target.txt"
setlocal enableDelayedExpansion
(
for /F "tokens=1* delims=:" %%a in ('findstr /N "^" %source%') do (
set "line=%%b"
if defined line set "line=!line:%replace%=%replaced%!"
echo(!line!
)
) > %target%
endlocal
Source. Hoping it will help some one.
Deniz Zoeteman
Back-end (web)development. Specialised mostly in PHP.
Updated on July 15, 2022Comments
-
Deniz Zoeteman almost 2 years
I want to create a batch while which finds specific lines in a batch file and are able to edit these lines.
Example:
//TXT FILE//
ex1 ex2 ex3 ex4
i want to let the batch file find 'ex3' and edit this to 'ex5' to let it look like this:
ex1 ex2 ex5 ex4