chem

chem [subcommand] [options] [arguments]

info [compound_name|CAS_number]
    Retrieves information about a chemical compound from a database (hypothetically).

mw [SMILES_string|MOL_file]
    Calculates the molecular weight of a compound.

balance [reaction_equation]
    Balances a chemical reaction equation.

sim [MD|QM] [input_file]
    Runs a simulation (Molecular Dynamics or Quantum Mechanics) based on the input file.

-h, --help
    Displays help message and exits.

-v, --version
    Displays version information and exits.

The `chem` command is a hypothetical Linux utility designed for performing various chemistry-related tasks from the command line. It could be used for calculations, data retrieval, simulations, and more. Since no standard `chem` command exists, this description is based on a potential tool.

A realistic `chem` tool might offer options to calculate molecular weights, access chemical databases (e.g., PubChem, ChemSpider) for information on compounds, perform simple reaction balancing, or run basic molecular dynamics simulations. It could accept input files in standard formats like SMILES or MOL and output data in CSV, JSON, or other structured formats.

The functionality would likely be modular, with subcommands for specific tasks. Error handling and clear output formatting are crucial for usability. Imagine functionalities ranging from basic stoichiometry to rudimentary quantum chemistry calculations, all from the convenience of the terminal.

This is a hypothetical command. No standard Linux distribution includes a `chem` command. The functionality described is speculative.

chem info aspirin
Retrieves information about aspirin.

chem mw "CC(=O)OC1=CC=CC=C1C(=O)O"
Calculates the molecular weight of aspirin (represented by SMILES).