In a linux shell, I want to make sure that a certain set of files all begin with
<?, having that exact string and no other characters at the beginning. How can I grep or use some other to express "file begins with"?
Edit: I'm wildcarding this, and
head doesn't give a filename on the same line, so when I grep it, I don't see the filname. Also,
"^<?" doesn't seem to give the right results; basically I'm getting this:
$> head -1 * | grep "^<?" <? <? <? <? <? ...
All of the files are actually good.