Parameters at command line question

[campione]

I know I can take parameters at command line like:

file.bat param1 param2 etc

and have them read in file.bat like:

%1 %2 etc

but is there a way to pass parameters using options, i.e.:

file.bat -pOne param1 -pTwo -param2 etc

and have them read in file.bat, i.e. get value of pOne and pTwo?

Any help appreciated

[fireballs]

if your asking what i think then you can just add

Code: [Select]

set Pone=%1% which will then set your first parameter to "Pone".

on second thoughts that doesn't seem to be what your asking but if it is hope it works. If i get you right this time you want to pass a parameter to the batch file that tells the batch file to get a value?

this can be done but it depends where this value is in the first place.

FB

[Dias de verano]

fireballs, you had one % sign too many. To set Pone to the value of the first parameter you would use

set Pone=%1

[campione]

No, what I'm thinking of is a way of kinda setting variables as they are passed, for example:

Code: [Select]

file.bat -user myUserName -password myPassword
would allow me to access the -user value that was passed, i.e. userName and the -password, i.e. myPassword.

I suppose the whole point of the exercise is to be able to swap around the options, such as:

Code: [Select]

file.bat -password myPassword -user myUserName
but that this command would still mean the same as the previous command.

[campione]

Actually, just thinking there, I could check each parameter, e.g.:

Code: [Select]

while (input parameters)(
if %1 == -user
(
 do something with %2
)

if %1 == -password
(
 do something with %2
)


check that %3 is -password if %1 -user
OR
check that %3 is -user if %1 -password

do something with %4
)
Excuse the pseudocode.

Not as clean as I would have liked but still should do the job.

[fireballs]

fireballs, you had on % sign too many. To set Pone to the value of the first parameter you would use

set Pone=%1

It works either way for me.

you could have:

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if %%1=="-password" goto password
if %%1="-username" goto username
exit

:username
if not %%2=="My Username" (exit) else (
if not %%4=="My Password" exit
)
goto code

:password
if not %%2=="My Password" (exit) else (
if not %%4=="My Username" exit
)
goto code
is that what your looking for?

EDIT: i think we had the same idea, you posted as i was writing a response.

FB

[campione]

That's the one, thought there might have been an actual command.

Thanks.

[Dias de verano]

While I was posting a reply, I saw the red "While you were typing a new reply has been posted" warning.

If you think about it logically, you only have 2 possibilities for the parameter sequence

(a) %1 -user %2 username %3 -password %4 password
(b) %1 -password %2 password %3 -user %4 username

So if you look at %1 you will find out all you need to know

Code: [Select]

if "%1"=="-user" (
    set username=%2
    set password=%4
    ) else (
    set password=%2
    set username=%4
    )

[campione]

I suppose my thinking was that using %1 - %9 can be limiting, mainly due to the amount of parameters that can be passed.

[Dias de verano]

You can pass any number of parameters, you aren't limited to 9, as you will see if you study the SHIFT command.

Also, the %* parameter expands to a string made up of ***all*** of the parameters passed.

[campione]

I see, so the SHIFT command will keep shifting through parameters, so I could have a large amount of them.

Nice one.