'Create .env file with shell script - how to wrap value in commas?

I am currently using the following to make a .env to help me with with my environment variables when using docker > supervisor > cron.

printenv > /var/www/laravel.env

This prints a list which is perfect (except issues with those with spaces in...)

I know that I can use sed to seperate them at the = sign and then wrap the second part in speech marks.

For example..

MY_VAR="MY VALUE WITH SPACES WORKS"
shellsedenvironment-variables


Solution 1:[1]

The output of printenv can't be used to reliably reconstruct the values of all possible environment variables. Consider this output:

foo=bar
baz=3

Is that the result of export foo=bar baz=3 or export foo=$'bar\nbaz=3'? There is no way to know.

In fact, I do not know of a portable way to reproduce any valid environment so that it can be reconstructed. The closest thing I can think of is in bash, you can use declare -px to produce output which can be used as the target of a source command to reproduce values whose names are valid identifiers.

Solution 2:[2]

This will work, unless the values contain also =

printenv |awk -F"=" '{print $1"=""\""$2"\""}'

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 chepner
Solution 2 George Vasiliou

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