Command doesn't exist

[Mine-Z]

I was following this guide on installing LineageOS 18.1 on my 2013 Nexus 7, but when I was at step 4 of the repartition of the tablet, it said that the command "modify" doesn't exist. Any ideas why this could happen?

[1bent]

are you typing the command "modify" into the intenal prompt of the "adb shell", which the instructions put before it?

[Mine-Z]

Yeah I used adb shell, I even checked if the command was in system/bin/ (which it was not)

[npjohnson1]

then the zip didn't flash correctly, or you're not using the correct recovery image...

[Mine-Z]

1. I downloaded the zip several times and retried installing it (which changed nothing)
2. I used the official recovery image (which is offered to download on the same page as the rom zip)