Hello list,

Does anyone know a method of being able to process the complete and literal command line passed to a shell script ?
I want to have the command line parameters with ALL characters (including meta characters e.g. \$ literally).

So as if there was no shell to substitute or expand parameters nor applying it quoting rules.

Thanks in advance !

Did you try single cote "'"
ex: In this example $test will not be taken as a variable but literally
if that doesn't meat your requirement can you please give us a relevant example?

Best regards,
Angel

Hello Angel,

Sorry but this is not what I’m looking for.
I probably didn’t formulate my question clear enough.

I’m aware of the shell concepts of substitution and quoting.
Also when they are applied, and their order.

My issue is to get hold of the whole command line without being processed in any way by the shell.
So all quotes and meta characters sill in place.

For example : # shellscript.sh $LC_ALL some’stange’quoted’paramter’

Within the shecllscript these 2 parameters expand and translate to C and somestangequotedparamter.

What I’m looking for is a way to get hold of that command line the way it was before the shell started.

The parent shell in which the command line is typed forks and exec a new (child) process to execute the command entered.

Is there a way to peek into some location outside the child context to get hold of the raw data from the original command line ?

Regards Paul,

The substitution happens before the script is called, so unless you quote the variables you cannot do what you are after with the current shells.

It is always possible that you could write your own shell in order to do what you are after, but this is not a small amount of work...

Probably hacking an existing shell is simpler.

You have to use escape characters for some stuff. You may still have trouble passing some reserved words, though.