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% tpm2_getcap(1) tpm2-tools | General Commands Manual
# NAME
**tpm2_getcap**(1) - Display TPM capabilities in a human readable form.
# SYNOPSIS
**tpm2_getcap** [*OPTIONS*] [*CAPABILITY*]
# DESCRIPTION
**tpm2_getcap**(1) - Query the TPM for it's capabilities / properties and print
them to the console. It takes a string form of the capability to query as an
argument to the tool. Currently supported capability groups are:
- **algorithms**:
Display data about supported algorithms.
- **commands**:
Display data about supported commands.
- **pcrs**:
Display currently allocated PCRs.
- **properties-fixed**:
Display fixed TPM properties.
- **properties-variable**:
Display variable TPM properties.
- **ecc-curves**:
Display data about elliptic curves.
- **handles-transient**:
Display handles about transient objects.
- **handles-persistent**:
Display handles about persistent objects.
- **handles-permanent**:
Display handles about permanent objects.
- **handles-pcr**:
Display handles about PCRs.
- **handles-nv-index**:
Display handles about NV Indices.
- **handles-loaded-session**:
Display handles about both loaded HMAC and policy sessions.
- **handles-saved-session**:
Display handles about saved sessions.
# OPTIONS
* **-l**, **\--list**:
List known supported capability names. These names can be
supplied as the argument to the **-c** option. Output is in a
YAML compliant list to stdout.
For example:
```
- algorithms
- commands
- properties-fixed
...
```
[common options](common/options.md)
[common tcti options](common/tcti.md)
# EXAMPLES
## To list the fixed properties of the TPM
```bash
tpm2_getcap properties-fixed
```
## To list the supported capability groups
```bash
tpm2_getcap -l
```
[returns](common/returns.md)
[footer](common/footer.md)
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