kojiro 1238419606 learn Standard Error is the secondary file descriptor to which commands print to the terminal. It's meant for messages that shouldn't be parsed by default. See !stdout !stdin and !redirtut for more info. kojiro 1241488231 forget kojiro 1241488303 learn Standard Error is the secondary file descriptor to which commands print to the terminal. It's meant for messages that shouldn't be parsed by default. Redirect to stderr: '>&2'. See !stdout !stdin and !redirtut for more info.