Character vectors are automatically collapsed into a single string. I thought the -n removed the newline but dont remove when use base64. That command give me a newline after paste it. echo -n HelloWorld openssl base64 pbcopy. That’s it, now you know how to encode and decode base64 data from command line. Encode and decode binary data into a base64 string. This question does not appear to be about Ubuntu within the scope defined in the help center. $ echo 'MTIz' | openssl base64 -d Conclusion $ openssl base64 -d -in encoded.txt -out raw.txt These are some example commands: $ openssl base64 -in raw.txt -output encoded.txt This certificate viewer tool will decode certificates so you can easily see their contents. Use this Certificate Decoder to decode your certificates in PEM format.

Openssl works with same way as base64 utility. If you want to decode certificates on your own computer, run this OpenSSL command: openssl x509 -in certificate.crt -text -noout. You can also use openssl to perform base64 encoding and decoding, but it might require to install for the operating system. To decode base64-encoded data, use the -d argument: $ echo 'MTIz' | base64 -d If you just want to quickly perform base64 encoding for a string and get the output, use any of these commands: $ cat raw.txt | base64 The encoded base64 value, by default, is printed on the stdout if you want to save into an file, you can use either one of following commands: $ base64 -i raw.txt -o encoded.txt $ echo -n '123' > raw.txtįor some Linux distros, you might need to specify the input file by using -i, -input : $ base64 -i raw.txt To encode base64 for an input file, issue this command: $ echo '123' > raw.txtīy default, echo command will append a newline character to the output, you might want to omit it by using -n argument.

Openssl decode base64