I want to put each line within quotation marks, such as:
abcdefg hijklmn opqrst
convert to:
\"abcdefg\" \"hijklmn\" \"opqrs
This sed should work for ignoring empty lines as well:
sed -i.bak 's/^..*$/"&"/' inFile
or
sed 's/^.\{1,\}$/"&"/' inFile