5551 Shares

How to clear text in.txt files with a batch file?

How to clear text in.txt files with a batch file? Topic: How to write a script examples
June 26, 2019 / By Cora
Question: I want to delete the contents of all .txt files in a folder and its sub-folders and I would like to know what batch script to use. I just want to keep empty .txt files with their filenames in their original locations. Thanks. I need to clear hundreds of .txt files.
Best Answer

Best Answers: How to clear text in.txt files with a batch file?

Bertred Bertred | 2 days ago
Short answer: echo. > *file path and file name* Ex. echo > "C:\users\frank\why girls dont like me.txt" *note: If the file doesn't exist, then it will create a new one. You can use things called redirections. They redirect the output of a command to a desired location. Types of redirections include > and >> and |(pipe). The > clears the text file and writes the out put at the beginning of the file. The >> appends it on the the end on a new line. I have no clue how to use the pipe. sorry. Something with piping the first command into the second one. More examples: echo Hello > text.txt Makes or rewrites "Hello" to a file in the current directory called text.txt. echo echo hello > Hello.bat echo pause >> Hello.bat creates a batch file with echo hello on the first line and then pause on the next one.
👍 92 | 👎 2
Did you like the answer? How to clear text in.txt files with a batch file? Share with your friends

We found more questions related to the topic: How to write a script examples


Bertred Originally Answered: Writing a.bat (batch) file for renaming files?
Download TotalCommander 7.55a here: http://ghisler.com/ It is a great file explorer which also allows renaming of multiple files (among many other useful things). Just select the files you want to rename, then press CTRL+m to start the multi-rename tool. You can then choose which parts of the filenames to keep, delete and replace. Have fun. EDIT: If you try to do all that you described with batch files, it will take a lot of coding to get the result you want. Renaming files using complex musters is not or hardly possible in the command prompt.
Bertred Originally Answered: Writing a.bat (batch) file for renaming files?
Well first off, you're going to have to think about exactly what you mean by "new file detected in the original folder". Then you can think about how your batch file can check for that. Do you mean "new files since the last time the batch file was run"? Or do you want the batch to actually run automatically every time a new file is introduced?
Bertred Originally Answered: Writing a.bat (batch) file for renaming files?
Use the File::Copy module. First of all, get a list of all the files you want to change in an array. Next, start processing them as follows: 1) Create a pattern using regular expression to the destination name you want to. 2) Use the move command from the Perl module to rename the file. If you don't want to use the module, you can simply use the rename command. Enjoy.

Africa Africa
Ratchetr is ideal: echo hi > attempt.txt "hi" is the content of the record "attempt.txt" is the region of the record use a single > to create your record or 2 >> to function contents on your record echo worldwide >> attempt.txt
👍 30 | 👎 -1

Africa Originally Answered: How to divide up one text file into many text files in java?
Calling inputStream.nextLine() returns the line and consumes it. The next call will give you the next line. Your while loop calls nextLine() twice, so each iteration will consume two lines. You probably want something like this: while (intputStream.hasNextLine()) {     String line = inputStream.nextLine();     if (line.equals(" "))     {         break;     }     outStream.println(line); } Some other comments: - Do not use == and != to compare strings. This does not do what you expect. The correct way is to use str1.equals(str2) and !str1.equals(str2). - 'Stream' has a special meaning in Java. To make your code clearer, avoid putting 'stream' in variable names unless they are actual streams. I assume variable 'inputStream' is of type Scanner, so call it 'inputScanner' or just 'input'. - Are you sure the bio terminator is a line containing a single space (" ") and not an empty line ("")? - To check if the start of a string matches use str1.startsWith("bio:") - Use line.substring(5) to get the line starting at index 5 (i.e. skipping the first 5 characters) - Use str1.equalsIgnoreCase(str2) to check for equality, ignoring the case - To check if a string starts with 'bio: ', ignoring the case, use line.substring(0, 5).equalsIgnoreCase("bio: ") - Note that the substring() method will throw an exception if the indices are out of bounds. You can either check for the condition (e.g. line.length() >= 5) or catch the exception. - See http://docs.oracle.com/javase/6/docs/api... for more String methods
Africa Originally Answered: How to divide up one text file into many text files in java?
i would suggest use String.trim() then check if it is null or String.equals("") // note no space String.trim() removes all whitespace in the begining and end including enter as far as i know of so if its blank everything is deleted it and will become an empt String ("") also i think its better to use an if then else inside the while loop to close the current writter and create a new file/ or writer while( inputStream.hasNextLine()){ String line = inputStream.nextLine().trim(); if ( line == null || line.equals("") ) { // close the current stream and create a new file and connect the stream output.close(); output = null; // just to be sure the older one is not referenced anymore output = new fileWriter( "newfilename"); // assuming using a filewriter } else { // write to the current file output.writeline( line); } } // end of while loop

If you have your own answer to the question how to write a script examples, then you can write your own version, using the form below for an extended answer.