Resolve the wrong character problem by the keyboard configuration - using raspi-config

While programming, some characters are wrong such as " and @ signs.

To resolve this issue, the keyboard configuration must be changed from the default UK type to the US type.

1. Type this command:

sudo raspi-config

2. In raspi-config, select:

4 Internationalisation Options

3. Select:

I3 Change Keyboard Layout

4. Select:

Generic 105-key (Intl) PC

5. Change the keyboard layout to US:

English (US)

6.  Select:

No AltGr key

7. Select:

No compose key

8. It is up to you to select Yes or No.

Quit raspi-config.

The Raspberry Pi may need to restart for new keyboard settings to be applied.