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## Program behaviour: overwrite

#### Syntax

`-overw`

`-ow`

#### Description

This will make Atomsk automatically overwrite the output files if they exist. By default (i.e. when `-ow` is not used), the user is prompted if the file shall be overwritten or another file name shall be used.

If both `-ow` and `-ignore` are used, then the existing files are not overwritten but are ignored.

To make this change permanent, you may set up a configuration file.

#### Default

By default files that already exist are not overwritten; instead the user is prompted whether to overwrite them or choose another name.

#### Examples

- `atomsk initial.gin cfg -ow`

  This will read `initial.gin` and convert it to CFG; if `initial.cfg` already exists, it will be overwritten.

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