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I have a file called samconfig.toml

version = 0.1 ~~~ parameter_overrides = "CognitoUserPoolName=\"aaa\" ApiAllowOrigin=\"'https://dev.xxxxxxxxx.amplifyapp.com'\" etc.. ~~~

My sed command

sed -i '' -e "s#ApiAllowOrigin=\\\"'https.*com'\\\"#ApiAllowOrigin=\\\"'https://dev.yyyyyyyy.amplify.com'\\\"#g" ./samconfig.toml

It doesn't substitute the url. What's confusing about this, is that it contains all those single quotes, double quotes, back slashes..

I even checked with visualized regexp checker

enter image description here

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    Enclosing sed commands within double quotes may have side effects it is safer to enclose those commands with single quotes. Single quotes can be represented by \' within a shell e.g. sed 'blah'\''blah'\''blah' file. Commented Aug 3, 2022 at 8:02

1 Answer 1

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You may use this sed on macos:

sed -i.bak -E "s~(ApiAllowOrigin=\\\\\"'https://).*(\.com'\\\\\")~\1dev.yyyyyyyy.amplify\2~" file cat file version = 0.1 ~~~ parameter_overrides = "CognitoUserPoolName=\"aaa\" ApiAllowOrigin=\"'https://dev.yyyyyyyy.amplify.com'\" etc.. ~~~

Here:

  • When inside the double quotes you will need to use \\\\ to match a single \.
  • Note use or -E for extended regular expressions
  • We are using 2 capture groups to avoid repeating same pattern in match and substitution
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1 Comment

Sorry I'll try this later, thank you so much you've saved me

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