Create Batches of Certificates from Batches of CSRs --------------------------------------------------- The following example shows how to create a batch of certificates given a batch of CSRs. Assuming a set of CSRs are located inside of the directory ``my-csr-directory``:: $ ls my-csr-directory/ csr.pem csr2.pem a certificate can be created for each CSR in that directory using a single command. On Linux and OSX, this command is:: $ ls my-csr-directory/ | xargs -I {} aws iot create-certificate-from-csr --certificate-signing-request file://my-csr-directory/{} This command lists all of the CSRs in ``my-csr-directory`` and pipes each CSR filename to the ``aws iot create-certificate-from-csr`` AWS CLI command to create a certificate for the corresponding CSR. The ``aws iot create-certificate-from-csr`` part of the command can also be ran in parallel to speed up the certificate creation process:: $ ls my-csr-directory/ | xargs -P 10 -I {} aws iot create-certificate-from-csr --certificate-signing-request file://my-csr-directory/{} On Windows PowerShell, the command to create certificates for all CSRs in ``my-csr-directory`` is:: > ls -Name my-csr-directory | %{aws iot create-certificate-from-csr --certificate-signing-request file://my-csr-directory/$_} On Windows Command Prompt, the command to create certificates for all CSRs in ``my-csr-directory`` is:: > forfiles /p my-csr-directory /c "cmd /c aws iot create-certificate-from-csr --certificate-signing-request file://@path"