Why aptly said "gpg: no default secret key: secret key not available" when GPG works?
frado8@comp:/home/frado/work/co/product_g$ export
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frado8@comp:/home/frado/work/co/product_g$ export DEBFULLNAME='Frado Bhalla'
frado8@comp:/home/frado/work/co/product_g$ echo...