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These options don't make sense when passing STDIN. `-write` will raise an
error because there is no file to write to. `-list` will always say
`<standard input>`. So disable whenever using STDIN, making the command
much simpler:
cat main.tf | terraform fmt -
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layout, page_title, sidebar_current, description
| layout | page_title | sidebar_current | description |
|---|---|---|---|
| docs | Command: fmt | docs-commands-fmt | The `terraform fmt` command is used to rewrite Terraform configuration files to a canonical format and style. |
Command: fmt
The terraform fmt command is used to rewrite Terraform configuration files
to a canonical format and style.
Usage
Usage: terraform fmt [options] [DIR]
By default, fmt scans the current directory for configuration files. If
the dir argument is provided then it will scan that given directory
instead. If dir is a single dash (-) then fmt will read from standard
input (STDIN).
The command-line flags are all optional. The list of available flags are:
-list=true- List files whose formatting differs (disabled if using STDIN)-write=true- Write result to source file instead of STDOUT (disabled if using STDIN)-diff=false- Display diffs instead of rewriting files