Update cheatsheets

tldr/terraform-init

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# terraform init
+
+> Initialize a new or existing Terraform working directory.
+> More information: <https://developer.hashicorp.com/terraform/cli/commands/init>.
+
+- Initialize the current working directory:
+
+`terraform init`
+
+- Initialize and upgrade modules and providers to the latest allowed versions:
+
+`terraform init -upgrade`
+
+- Initialize and reconfigure the backend, ignoring any saved configuration:
+
+`terraform init -reconfigure`
+
+- Initialize and reconfigure the backend, attempting to migrate any existing state:
+
+`terraform init -migrate-state`
+
+- Initialize with additional backend configuration:
+
+`terraform init -backend-config '{{key}}={{value}}'`
+
+- Initialize without backend or HCP Terraform initialization:
+
+`terraform init -backend=false`
+
+- Initialize without interactive prompts (useful for automation):
+
+`terraform init -input=false`
+
+- Initialize with the dependency lockfile mode set to readonly:
+
+`terraform init -lockfile readonly`