is made up of quotation marks, then by default cmd will from time to time strip off These offers, and /s tells it to depart them alone.

Making use of %s in scanf without an explcit discipline width opens the same buffer overflow exploit that gets did; namely, if you will discover much more characters while in the enter stream as opposed to focus on buffer is sized to carry, scanf will Fortunately generate These added figures to memory outdoors the buffer, perhaps clobbering a little something important. Sadly, as opposed to in printf, You cannot provide the field with as being a run time argument:

Nevertheless it does not do any hurt, and this means the code would however get the job done exactly the same way It doesn't matter how the command remaining passed was adjusted.

It matters when you stick to /C with "executable file title that includes spaces" after which no other quotes. In that scenario, the quotes is going to be preserved within the file identify Except if you utilize /S. I added a solution growing on this.

The width just isn't specified in the format string, but as an extra integer price argument previous the argument that must be formatted.

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And hardware methods at any stage even during software execution in turn phone system phone calls which simply call I/O routines coded in assembly language.

The initial 1 matches a single whitespace, whereas the next 1 matches a person or several whitespaces. They are the so-named standard expression quantifiers, they usually complete matches like this (taken within the documentation):

@MichaelBurr: I am quite certain he just needed the extra set of prices; the /s was redundant In cases like this, because the get more info disorders beneath which /s tends to make a change weren't satisfied.

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This executes SomeCommand.exe redirecting typical output to some temp file and normal error to a similar place:

The kernel doesn't have the luxury on the libc library to deal with the initial set up of assorted sources.

Andrew HareAndrew Hare 351k7575 gold badges644644 silver badges640640 bronze badges three 15 Observe that this type of string interpolation is deprecated in favor of the more impressive str.format approach.

So For those who have a sophisticated command which you wish to pass to CMD.exe you possibly have to recollect CMD's argument quoting regulations, and effectively escape every one of the estimates, or use /S, which triggers a Exclusive non-parsing rule of "Strip first and last " and handle all other people as the command to execute unchanged".

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The PEP would not say "supplanted" and in no A part of the PEP will it say the % operator is deprecated (but it does say other matters are deprecated down the bottom). You may perhaps desire str.structure and that's wonderful, but till there's a PEP saying it can be deprecated there is no perception in professing it can be when it's not.