so i used the head command to try and read the first part of a file my company has to process at a unix prompt. it returned something like an upside down question mark and 400 and the prompt was on the same line, so unix had a problem reading it. opening the file up in windows showed nothing unusual.
doing a head filename > test.txt and then opening in windows showed the file’s first ten lines but in between each character was a box character. not only that, but it i deleted the box and tried to do an undelete using my text editor’s undo, it wouldn’t do it, like it didn’t know what the character was.
dos2ux did nothing to fix it.
what’s this weird invisible character and how do i get rid of it?