To add a file to an existing ISO, you can use the command-line tool called "mkisofs". The command you would use is:

mkisofs -o new_image.iso -r -J -graft-points old_image.iso=/path/to/txt/file

This will create a new ISO called "new_image.iso" with the added file. The "-r" option enables Rock Ridge extension, allowing long filenames and special characters. The "-J" option enables Joliet extension, allowing Windows-compatible filenames. The "-graft-points" option specifies where to add the file to the existing ISO. In this case, we're adding it to the root directory of the existing ISO "old_image.iso". Replace "/path/to/txt/file" with the actual path to your txt file.

I hope this helps! Let me know if you have any further questions.
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence