Append to beginning of file

[nob...@gmail.com]

Hey dev,
Is there any way to append the contents to the beginning of the file.
If yes, please share.

Thank you,
Nobin Jacob

[Henrik "The Developer" Lindqvist]

That's not how file systems work. Use the File read block to read the entire file, prepend the additional content then use the File write block to replace the entire content (not appending).

[nob...@gmail.com]

Okay, but there must be some way to place the file pointer to the beginning of the text file. 🤔

[Henrik "The Developer" Lindqvist]

As said, that's not work file systems work. Simply seeking to the beginning of the file would overwrite the data.

[tq_bt]

File tags can be edited in this way?

गुरुवार, 15 नवंबर 2018 को 11:58:58 pm UTC+5:30 बजे Henrik "The Developer" Lindqvist ने लिखा:

[Henrik "The Developer" Lindqvist]

Probably not, but it depends on what you mean by "tags".

[Ricardo Fernández Serrata]

The `dd` shell command can be used for this, but it's tricky, and I don't know how to do it. An easier option is to use other shell commands instead. 1st create a file containing what you want to prepend, then use `cat` cmd on the other file to be concatenated and redirect the Standard Output to the 1st file (make sure you use `>>` instead of `>`, to avoid overwriting). After that, rename the end result to the old (non-prepended) file, to replace it, you can do that using `mv` cmd, or just AM "File move" block

[Ricardo Fernández Serrata]

I forgot to say that stdout redirection has no memory limit, so you can prepend data to big files using that method, and nothing will crash