Find text history entered into ubuntu command line (get lost password)

I have an RPi that I have forgotten the password to. I have history on the ubuntu command line on my PC of ssh logins and I was hoping there would be a way to get text history entered into to try to find my password. If not is there a way to recover an RPi password? I am running Ubuntu Server (not Raspbian) and was unable to access GRUB.

Earlier I was using the history command but that only shows the ssh commands and not the details entered in.

Any help would be massively appreciated!

EDIT - Some solutions don't work because they are for the Raspberry Pi 3B and below and I have a Raspberry Pi 4B

EDIT - I have found a solution thanks to a friend of mine, I will put an answer below. Thanks to everyone who helped me :)

You can show a lot of it with:

cat .bash_history

or just

history

However, once the buffer is full, only some of them will be written. The rest will be lost. You can deal with this in at least 2 ways.

1. Write a bash script to save it. You can, for example, tee everything to STDIN and a file of your choosing.

2. Edit ~/.bashrc -- There is a line in this file that sets a cap on the count and another for file size.

As for login credentials, no. Otherwise, users could just look at each other's passwords.

I am not sure where the credentials are stored, but I would almost guarantee that they are encrypted.

EDIT From here

1. Power down and pull the SD card out from your Pi and put it into your computer.
2. Open the file 'cmdline. ...
3. Put the SD card back in the Pi and boot.
4. When the prompt comes up, type 'su' to log in as root (no password needed).
5. Type "passwd pi" and then follow the prompts to enter a new password.

To solve this issue I took the SD card out of the pi and opened it in another linux machine.

In the terminal I used the command below to remove the "x" from the root user line

sudo nano /mnt/sdcard/etc/passwd

(You may need to mount the SD card or USB stick reading the SD card)

Then I was able to put the SD card back into the pi and log in to the root user without typing a password.

Finally I could create a new password using the passwd command.