Co robi ENVSUBST użycie. Konsola stdin to stdout, replacing any environment variable string, such.

Czy przydatne?

Polecenie envsubst

Wykonanie, użycie: Substitutes environment variables in a shell string or script. When used with no options, copies stdin to stdout, replacing any environment variable string, such as $VARIABLE or ${VARIABLE}, with the appropriate environment variable value. So, "My editor is $EDITOR" would be converted to "My editor is /usr/bin/emacs." Specifying a shell format limits the substitutions to those variables referenced in the shell format

Opcje wykonania envsubst w konsoli

-h,--help

Print help message and then exit.

 -V,--version

Print version information and then exit.

 -v,--variables

Display the variables referenced in the shell format, and then exit.

Przykłady envsubst działanie w Słownik polecenie E

Przykład ENVSUBST użycie :
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