How to suppress error message of a command?

Question

How can I suppress error messages for a shell command?

For example, if there are only jpg files in a directory, running ls *.zip gives an e

Answer 1

$ ls *.zip 2>/dev/null

will redirect any error messages on stderr to /dev/null (i.e. you won't see them)

Note the return value (given by $?) will still reflect that an error occurred.