Verify Tails Signature in Terminal help

[LP]

Hi all,

I am trying to verify the integrity of my Tails download Signature with gpg.
What am i doing wrong ??
They are both in the same folder downloads
I signed in as admin my daughter then add myself to sudoers switch back to
dad before i tried to verify sig

Is THIS the problem >>>>>> "WARNING: unsafe ownership on configuration file
`/home/dad/.gnupg/gpg.conf'
gpg: can't open `tails-i386-0.23.iso.sig'"
I don't know what it means.

https://tails.boum.org/doc/get/verify_the_iso_image_using_the_command_line/index.en.html
Thanks for any help.
Chris.
...........................................................................

dad at m-desktop:~$ sudo home
[sudo] password for dad:
sudo: home: command not found
dad at m-desktop:~$ sudo cd /home
sudo: cd: command not found
dad at m-desktop:~$ sudo cat tails-signing.key | gpg --keyid-format long
--import
gpg: key 1202821CBE2CD9C1: public key "Tails developers (signing key) <
tails at boum.org>" imported
gpg: Total number processed: 1
gpg:               imported: 1  (RSA: 1)
gpg: no ultimately trusted keys found
dad at m-desktop:~$ gpg --keyid-format long --verify tails-i386-0.23.iso.sig
tails-i386-0.23.iso
gpg: can't open `tails-i386-0.23.iso.sig'
gpg: verify signatures failed: file open error
dad at m-desktop:~$ gpg --keyid-format long --verify tails-i386-0.23.iso.sig
tails-i386-0.23.iso
gpg: can't open `tails-i386-0.23.iso.sig'
gpg: verify signatures failed: file open error
dad at m-desktop:~$ gpg --keyid-format long --verify tails-i386-0.23.iso.sig
tails-i386-0.23.iso
gpg: can't open `tails-i386-0.23.iso.sig'
gpg: verify signatures failed: file open error
dad at m-desktop:~$ gpg --keyid-format long --verify tails-i386-0.23.iso.sig
tails-i386-0.23.iso
gpg: can't open `tails-i386-0.23.iso.sig'
gpg: verify signatures failed: file open error
dad at m-desktop:~$ sudo gpg --keyid-format long --verify
tails-i386-0.23.iso.sig tails-i386-0.23.iso
gpg: WARNING: unsafe ownership on configuration file
`/home/dad/.gnupg/gpg.conf'
gpg: can't open `tails-i386-0.23.iso.sig'
gpg: verify signatures failed: file open error
dad at m-desktop:~$ sudo gpg --keyid-format long --verify
tails-i386-0.23.iso.sig tails-i386-0.23.iso
gpg: WARNING: unsafe ownership on configuration file
`/home/dad/.gnupg/gpg.conf'
gpg: can't open `tails-i386-0.23.iso.sig'
gpg: verify signatures failed: file open error
dad at m-desktop:~$ sudo gpg --keyid-format long --verify
tails-i386-0.23.iso.sig tails-i386-0.23.iso
gpg: WARNING: unsafe ownership on configuration file
`/home/dad/.gnupg/gpg.conf'
gpg: can't open `tails-i386-0.23.iso.sig'
gpg: verify signatures failed: file open error
dad at m-desktop:~$
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