---
name: "scram"
section: "1"
platform: "linux"
package: "scram"
version: "0.16.2-3+b2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/scram"
---

# scram(1)

Command-line Risk Analysis Multi-tool

## NAME

SCRAM - Command-line Risk Analysis Multi-tool

## SYNOPSIS

**scram** \[*options*\] *input-files*...

## DESCRIPTION

**SCRAM** is a probabilistic risk analysis (PRA) tool. It can perform event tree analysis, static fault tree analysis, analysis with common cause failure models, probability calculations with importance analysis, and uncertainty analysis with Monte Carlo simulations. This tool can handle non-coherent fault trees, containing NOT logic.

**SCRAM** works with PRA models and constructs described in the Open-PSA Model Exchange Format.

## OPTIONS

- **--help**

  Display this help message

- **--version**

  Display version information

- **--config-file** path

  XML file with analysis configurations

- **--allow-extern**

  \*\*UNSAFE\*\* Allow external libraries

- **--validate**

  Validate input files without analysis

- **--bdd**

  Perform qualitative analysis with BDD

- **--zbdd**

  Perform qualitative analysis with ZBDD

- **--mocus**

  Perform qualitative analysis with MOCUS

- **--prime-implicants**

  Calculate prime implicants

- **--probability** bool

  Perform probability analysis

- **--importance** bool

  Perform importance analysis

- **--uncertainty** bool

  Perform uncertainty analysis

- **--ccf** bool

  Perform common-cause failure analysis

- **--sil** bool

  Compute the Safety Integrity Level metrics

- **--rare-event**

  Use the rare event approximation

- **--mcub**

  Use the MCUB approximation

- **-l** \[ **--limit-order** \] int

  Upper limit for the product order

- **--cut-off** double

  Cut-off probability for products

- **--mission-time** double

  System mission time in hours

- **--time-step** double

  Time step in hours for probability analysis

- **--num-trials** int

  Number of trials for Monte Carlo simulations

- **--num-quantiles** int

  Number of quantiles for distributions

- **--num-bins** int

  Number of bins for histograms

- **--seed** int

  Seed for the pseudo-random number generator

**-o** \[ **--output-path** \] path Output path for reports

- **--no-indent**

  Omit indentation whitespace in output XML

- **--verbosity** int

  Set log verbosity

## SEE ALSO

https://scram-pra.org