printenv — print all or part of environment
printenv [OPTION]... [VARIABLE]...Print values of the specified environment VARIABLE(s). If none is provided, print name and value pairs for all ENV_VARS.
-h, --help
display help and exit
-v, --version
output version information and exitSee GitHub Issues: https://github.com/takashiidobe/libc/issues
Takashi Idobe mail@takashiidobe.com
getenv(1)