This thread is pretty much dead. On average it gets about a post every two months, and tech experts who can really help left long ago.
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:
$ rm ~/monero/build/Linux/release-v0.17/release/bin/monero-wallet-cli wallet1 wallet1.keys
$ 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.