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 :
Jak użyć function and macro names defined in a programming source file . etags generates tags for use by emacs . (ctags produces an equivalent tags file for use with vi .) More than one file may be specified co znaczy.
Przykład ENVSUBST użycie :
Jak użyć System administration command. Store disaster recovery data for ext2 filesystem on device to image file file . Weekly filesystem images can be an important part of a disaster recovery plan krzyżówka.
Przykład ENVSUBST użycie :
Jak użyć environment or, if an environment variable is specified, set it to a new value and display the modified environment. If command is specified, execute it under the modified environment co to jest.
Przykład ENVSUBST użycie :
Jak użyć Start the Enlightened Sound Daemon , also called EsounD , a sound-mixing daemon that allows multiple applications to access a single audio device at one time słownik.
Przykład ENVSUBST użycie :
Jak użyć input string to standard output. This is the /bin/echo command. echo also exists as a command built into bash . The following character sequences have special meanings: a Alert (bell).  Backspace. c czym jest.