This is the same suggestion as @jps but shorter. Also remember that echo by default always adds newline at the end, so when you want to ... ... <看更多>

encode (input), where input is a string of arbitrary bytes. The output is a Base64 encoded string. -- To decode, use base64.decode(input), where input is ... ... <看更多>

Online Base64URL decoder. Convert Base64URL, Base64 and Hex online to UTF-8 string. (Step1) Fill a string to be decoded. ... <看更多>

Self-answering my question for future reference. base64url::encode () { base64 -w0 | tr '+/' '-_' | tr -d '='; } base64url::decode () { awk ... ... <看更多>