vyos@cr01b-vyos# set system login user vyos authentication plaintext-password "$something&strong%"
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vyos@cr01b-vyos# commit
Password: [ system login ]
/bin/sh: strong%: command not found

Traceback (most recent call last):
  File "/usr/libexec/vyos/conf_mode/system-login.py", line 366, in <module>
    generate(c)
  File "/usr/libexec/vyos/conf_mode/system-login.py", line 208, in generate
    user['password_encrypted'] = get_crypt_pw(user['password_plaintext'])
  File "/usr/libexec/vyos/conf_mode/system-login.py", line 58, in get_crypt_pw
    return cmd(f'/usr/bin/mkpasswd --method=sha-512 {password}')
  File "/usr/lib/python3/dist-packages/vyos/util.py", line 159, in cmd
    raise OSError(code, feedback)
OSError: [Errno 127] failed to run command: /usr/bin/mkpasswd --method=sha-512 &strong%
returned: $6$2QpdFyNemTT$B2CSS.4.8/Y1v/RmWmTqbf/XRzMi5CU6G/Q8Eip8uZtnQdKzLTJl.Zyq8sjdAGmg8/3lBZTjk5/QAvj8eYCSF1
exit code: 127

[[system login]] failed
Commit failed
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