You should try one of the other Monero threads, or reddit, or whatever.
Although it's true I'll take a shot anyway...
Thing is... I did the most retarded thing I could.
I wanted to delete the wallet file and keys but instead I deleted the entire monero-wallet-cli:
$ monero-wallet-cli
-bash: /home/linux/monero/build/Linux/release-v0.17/release/bin/monero-wallet-cli: No such file or directory
Yeah, shame on me...
Anyway, is there a way I can rebuild monero-wallet-cli? I don't want to rebuild everything, as monerod is synced and solo-mining, and it took more than 48 hours to build and sync everything.