Install gpg in osx

First install gpg using brew install gpg

Then try it:

andy@AndyMacBookPro:/usr/local/webdata/andy/company/citic$ gpg
gpg: Created directory '/Users/andy/.gnupg'
gpg: New configuration file '/Users/andy/.gnupg/gpg.conf' has been created
gpg: Warning: Options in '/Users/andy/.gnupg/gpg.conf' have not been used during this run Using
gpg: Keyring '/Users/andy/.gnupg/secring.gpg' has been created
gpg: Keyring '/Users/andy/.gnupg/pubring.gpg' has been created
gpg: Please start typing your message Text...

Or try this:

andy@AndyMacBookPro:/usr/local/webdata/andy/fanli/citic$ gpg --list-key
gpg: /Users/andy/.gnupg/trustdb.gpg : Established a trust database
andy@AndyMacBookPro:/usr/local/webdata/andy/fanli/citic$

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The above introduces the installation of gpg in osx, including the relevant aspects. I hope it will be helpful to friends who are interested in PHP tutorials.