Terminal not running programs when pressing enter
It sounds like you have a single " or ' somewhere in your command line arguments. Maybe something like this:


echo It's a nice day


The command line is waiting for the matching " or '. That's what the > means.

You can fix this by quoting the entire argument with the other kind of quote:

echo "It's a nice day"


Or escaping the offending character with \

echo It\'s a nice day