"What a time to be alive"
s/a/an awful/
Some days I feel like everything peaked around mid-2000.
s/a/an awful/
Some days I feel like everything peaked around mid-2000.
Whan awfult a time to be alive
$ echo "What a time to be alive" | sed s/a/an awful/
sed: -e expression #1, char 6: unterminated `s' command