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## Format: ABINIT

Name: ABINIT input file

Extension: in

Specification: ABINIT documentation

Visualization programs: N/A

#### Restrictions

Atomsk can read ABINIT input files (*.in). If coordinates are reduced (i.e. if they appear after `xred`) then Atomsk will immediately convert them to cartesian coordinates. To convert back to reduced coordinates one can use the option `-frac`.

When writing a file in the ABINIT input format, Atomsk writes atom positions as Cartesian coordinates (using the keyword `xcart`). If the atom types are defined as an auxiliary properties, then Atomsk will use it. That file is just a draft and will have to be edited, it is NOT fully set for a simulation.

#### Examples

- `atomsk my_system.cfg abinit`

  This will read the file `my_system.cfg`, and write the final result to `my_system.in`.

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