Segmentation Fault: Core Dumped

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Linux- power off usb disk

on May 02, 2018

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dnf install udisks

OR

apt install udisks2

udisksctl power-off -b /dev/<device>

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Docker cheat Sheet

Lifecycle docker create creates a container but does not start it. docker run creates and starts a container in one operation. docker stop stops it. docker start will start it again. docker restart restarts a container. docker rm deletes a container. docker kill sends a SIGKILL to a container. docker attach will connect to a running container. docker wait blocks until container stops. Commandline docker --rm r emove container automatically after it exits -it connect the container to terminal --name web name the container -p 5000:80 expose port 5000 externally and map to port 80 -v $hostdir:$dockerdir create a host mapped volume inside the container alpine:3.4 the image from which the container is instantiated /bin/sh

XL Commands

fancy pansy stuff ..VMs are called 'domains' ... well dom0 ...domU ref: http://wiki.christophchamp.com/index.php?title=Xl_(XenServer) ------------------------------------------------------------------------------------------------ Create VM w/o attaching to console xl create -f <cfg filename> Create VM & attach to console xl create -f <cfg filename> -c List of running VMs: xl list this will give <id> of the *domains* as well....used for subsequent commands List VMs w/o dom0: xl list-vm Info about host xl info Top for domain & host together: xl top Reboot VM: xl reboot <id> Shutdown VM: xl shutdown <id> Destroy a VM ... iski maa ki.... xl destroy <id> Attach to console to running domain xl console <id> Attach to domains vnc server xl vncviewer <id> Save a domain state to restore later xl save <id> Restore a saved state xl restore <id>

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Linux- power off usb disk

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