gpg: signing failed: Inappropriate ioctl for device Error Message on Linux

[Jim Ernst]

Hello -

I am currently testing keys I created using gpg version 2 2.1.15 (libgcrypt 1.7.3) and I am trying to encrypt a file using a shell script in a LINUX environment. I am getting the following error when the command is executed:

gpg: signing failed: Inappropriate ioctl for device

Has anyone encountered this issue ?

Thanks,
Jim Ernst
NTT Data
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