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kairat-beep/Make a swap file

Created March 20, 2023 16:38
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Make a swap file
pbmac@pbmac-server $ sudo fallocate -l 1G /swapfile
pbmac@pbmac-server $ sudo chmod 600 /swapfile
pbmac@pbmac-server $ sudo mkswap /swapfile
pbmac@pbmac-server $ sudo swapon /swapfile
pbmac@pbmac-server $ swapon --show
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KERNEL=="video[0-9]*", SUBSYSTEM=="video4linux", SUBSYSTEMS=="usb", ATTRS{idVendor}=="05a9", ATTRS{idProduct}=="4519",
SYMLINK+="video-cam"

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looking at device '/devices/pci0000:00/0000:00:04.1/usb3/3-2/3-2:1.0/video4linux/video2':
KERNEL=="video2"
SUBSYSTEM=="video4linux"
...
looking at parent device '/devices/pci0000:00/0000:00:04.1/usb3/3-2/3-2:1.0':
KERNELS=="3-2:1.0"
SUBSYSTEMS=="usb"
...
looking at parent device '/devices/pci0000:00/0000:00:04.1/usb3/3-2':
KERNELS=="3-2"
SUBSYSTEMS=="usb"
ATTRS{idVendor}=="05a9"
ATTRS{manufacturer}=="OmniVision Technologies, Inc."
ATTRS{removable}=="unknown"
ATTRS{idProduct}=="4519"
ATTRS{bDeviceClass}=="00"
ATTRS{product}=="USB Camera"

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