Quiz: searching and editing text

Read the output

Why does the file still have port 8080?

$ sed 's/8080/9090/' app.conf
port=9090
$ grep port app.conf
port=8080

• A The s command lacked the g flag at the end.
• B sed printed the result on the screen; the -i option is what writes it to the file.
• C sed did not find 8080 on the line.
• D student has no write permission on app.conf.