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How to see how much you have swap by Matlab prompt in your system?

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SL on 14 Oct 2016
Commented: Walter Roberson on 15 Oct 2016
I would like to verify how much users have swap on their system by one-liner. Is there anything about the thing in Matlab prompt?
OS: Debian 8.5 64 bit Linux kernel: 4.6 of backports Hardware: Asus Zenbook UX303UA


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Answers (1)

Walter Roberson
Walter Roberson on 14 Oct 2016
No, this cannot be done in one line. Figuring out how much swap you have available requires detecting which OS-X version you are running. Current versions of OS-X would require asking the system for sysctl vm.swapfileprefix , removing the filename portion, resolving that directory to a device, and asking for the amount of free space on the device, together with totaling the size of all existing files that match the pattern starting with sysctl vm.swapfileprefix . Remember when you ask for the amount of free space on the partition to multiply by the blocksize to get bytes, because the file sizes will be in bytes.



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