Command-line arguments of Mathematica Kernel and FrontEnd

Question

I still know nothing on usage of such command-line options of MathKernel as

-lmverbose
-run cmd
-password "pw"
-pwfile "file"

How are they working and what they are needed for?

Are there other potentially useful command-line options of the MathKernel and the FrontEnd?

P.S. Related answer.

Extent

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Answer 1

Please consult the following reference pages: MathKernel and Mathematica. Opening "More Information" section you will see documented options. Its says

-pwfile "file" ------- read passwords from file

-run cmd ----------- run cmd on startup

-lmverbose ------------ print information on interactions with MathLM

---

One can use -run option to execute certain commands before the first input, and it will not affect In/Out. Try MathKernel -run "a=1" and evaluate a on In1.

Margitmargo

I just found what MathLM is. – Extent

@Margitmargo Your addition about run eliminates ambiguity. I thought that this command just allows to run another program with path specified in cmd argument. But how large cmd is allowed to be? – Extent

@Alexey It can be anything, including Get of a large program. – Margitmargo

@Margitmargo I mean how long cmd can be itself? Are there any limitations? – Extent

@Alexey I am unsure, but strongly suspect that the limitations are those of OS. On Linux, for instance, these can be multi-line and be of any length. – Margitmargo

I just found in the Documentation an example of using -run command-line argument: commandstring=First[$CommandLine]<>" -noprompt -run \"Put[Factorial[20],ToFileName[$TemporaryPrefix,ToString[temp1]]];Quit[]\"";Run[commandstring] – Extent