Windows 10: && Weirdness

Code: runas /user:Administrator "defrag c: /V"[/quote] This works.
Code: runas /user:Administrator "cleanmgr /VERYLOWDISK"[/quote] This works.
Code: runas /user:Administrator "defrag c: /V" && "cleanmgr /VERYLOWDISK"[/quote] This does not work.

I've tried /savecred thinking it might be some silly privilege issue, but that doesn't work either.
Where did I go wrong?

:)

 

Internet Connection Sharing broken Windows 10

Can't mark your own replies as an answer.

 

Sirocco 8800

Link went weird, sorry

/discussions/board/message?board.id=music&;message.id=2651&view=by_date_ascending&page=2

 

Try a semicolon ​; ​ in powershell

 

In a command prompt a single & acts as a delimiter between two commands, effectively allowing you to enter a sequence of commands on one line as if you had typed each command after the previous one had completed.

The double && is similar, but will only execute the command following the && if the previous command was successful. It may be that your first command didn't return a 'success' code.

https://www.microsoft.com/resources/...loverview.mspx

 

That's good to know, but it appears to skip over the second command in PowerShell.

If I use & instead of && in CMD, it still skips the second command and gives me this error.
>The system cannot find the path specified.

Code: runas /user:Administrator ("defrag c: /V" & "cleanmgr /VERYLOWDISK")[/quote] If I use nesting, neither command works and I get two cannot find path errors.

 

Observation (may or may not affect outcome):

If you run the cleanmgr command first, and some files are removed, followed by the defrag command, if successful, there will be fewer files to defrag, and there will be more space on disk for defrag to operate with, and fill gaps, resulting in a faster overall time, and a neater result on disk than the other way around..

 

Yes, the ordering was not very bright on my part. The outcome is still the same with only the first command being run.

 

Running those commands all of the time is just wearing down your hard drive, especially if you have a SSD. You should never run those commands, unless you have made major changes such as an upgrade to the next step version of Windows 10, or have removed a bunch of files that have been moved to another drive.

 

I'm keenly aware. My intention is to write a one liner or batch script which does manual routine maintenance like defrag (on HDD), disk clean, defender update and scan, and windows update. I would like to write out a log of each process as well, but this is a secondary issue.

 

You do not need to do one, since it actually causes Windows 10 to screw up its built in housekeeping duties and slows down your system. As I stated before, you do not have to do any of this, since Windows 10 automatically looks at the hard drive and defrags it as part of its housekeeping when booting up or shutting down it records that info for it to happen the next time you turn the system back on or reboot.

The only time you have to use Disk Cleanup is after a in place upgrade or doing a clean install and having updates installed, along with installing programs on the machine.

 

Please forget the programs I'm using since they are irrelevant to the issue at hand.
Code: mkdir new && cd new && echo 'test' > 1.txt[/quote] Why would this work as a regular user?
Code: runas /user:Administrator mkdir new && cd new && echo 'test' > 1.txt[/quote] ...but not this?
Code: runas /user:Administrator "mkdir new && cd new && echo 'test' > 1.txt"[/quote] ..or this?

 

Code: runas /user:Administrator "cmd /c \"defrag c: /V ^&^& cleanmgr /VERYLOWDISK\""[/quote] Code: runas /user:Administrator "cmd /c \"cd /d \"%cd%\" ^& mkdir new ^&^& cd new ^&^& echo 'test' ^> 1.txt\""[/quote]

 

fafhrd explained why it skips over one command to do the other. When you are doing dishes, do you take the dirty ones and put them away or do you empty the dishwasher, put the dirty dishes in and the clean ones away. Also do you put a couple of items in and then run it, or go "Hey, it still has enough room, so I will just put stuff in there until it is full and then run it."

Same way when you look at anything that has to deal with analytical thinking, which every OS is designed to talk between the kernel, every piece of hardware through IRQ's, telling programs and tasks if they need to run or wait, housekeeping does not need to be done, if the system is still running in fair shape and is not dropping below the percentage that the Software Engineers figured out at what point the system ends up having to go do some housekeeping to bring it back to full potential.