QUESTION 1 1points Save Answer Write a regular expression that you could use with egrep that will match all lines that contain an open parenthesis. Only write the regular expression. Do not include the egrep command and do not enclose it in single or double quotes. QUESTION 2 1points Save Answer Write a piped set of commands using only ls - I and egrep to find the number of files in /dev that are character-type (character-type files have use the letter c for type instead of -for regular files or d for directories). QUESTION 3 1 points Save Answer Write a piped set of commands to find all devices in /dev that are group writable but not group readable