Rvm: tidak dapat menginstal rvm

Saya mengalami kesulitan menginstal rvm.

Pertama saya tidak bisa melakukan baris kode gpg
2 saya mencoba baris kedua dan mendapatkan sedikit kode berikut.

Downloading https://github.com/rvm/rvm/archive/1.27.0.tar.gz
Downloading https://github.com/rvm/rvm/releases/download/1.27.0/1.27.0.tar.gz.asc
Found PGP signature at: 'https://github.com/rvm/rvm/releases/download/1.27.0/1.27.0.tar.gz.asc',
but no GPG software exists to validate it, skipping.

Upgrading the RVM installation in /Users/NickDev/.rvm/
    RVM PATH line found in /Users/NickDev/.mkshrc /Users/NickDev/.profile /Users/NickDev/.bashrc /Users/NickDev/.zshrc.
    RVM sourcing line found in /Users/NickDev/.profile /Users/NickDev/.bash_profile /Users/NickDev/.zlogin.
Upgrade of RVM in /Users/NickDev/.rvm/ is complete.

# pdrunk,
#
#   Thank you for using RVM!
#   We sincerely hope that RVM helps to make your life easier and more enjoyable!!!
#
# ~Wayne, Michal & team.

In case of problems: https://rvm.io/help and https://twitter.com/rvm_io

Peningkatan Catatan:

• Tidak ada catatan baru untuk ditampilkan.

Tetapi ketika saya memeriksa untuk melihat apakah rvm ada di sana, saya mengerti

$ rvm | head -n 1
-bash: rvm: command not found

Apa yang saya lakukan salah?