chem

chem [options] [arguments]
(Syntax undefined; command not standard)

The chem command is not a standard utility in Linux distributions or POSIX specifications. No man page or coreutils equivalent exists for 'chem'. It may refer to a niche tool from chemistry software packages like Chemtool or BKChem, but those typically use wrappers like chemtool (1) for drawing chemical structures. If installed via specialized repositories (e.g., Debian science packages), it might process chemical data, but documentation is scarce. Users searching for it often confuse it with chmod (change mode), chown (change owner), or chemistry apps. Verify with which chem or man chem; absence indicates it's unavailable. For chemical computations, consider rdkit, openbabel, or Python libraries instead.

In summary, without a specific package context, chem lacks official syntax, options, or usage in mainstream Linux environments.

Command not found in standard PATH or man pages. May require custom installation; potential security risks from unverified sources. Not recommended for production use.

Use openbabel obabel for chemical file conversion or rdkit Python module for cheminformatics.

On Debian/Ubuntu: apt search chemtool; may install related packages.

No documented history in Linux/Unix traditions. Possible origins in 1990s academic chemistry tools; modern equivalents favor GUI apps or libraries like Avogadro.

chemtool(1), xdrawchem(1), chmod(1), chown(1)