cron fails to execute gpg encryption commands

Solution Verified - Updated -

Issue

  • User crontab is configured to encrypt a file by running the following gnupg command, but the output file is never generated.

    gpg --passphrase-fd 3 --sign --encrypt -r Bob -o /tmp/output.gpg /home/alice/inputfile 3</home/alice/pw.txt
    
  • Trying to use a gpg command in a cron job that decrypts some files with --passphrase but decryption is failing

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 4

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