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CentOS 7 in VirtualBox Setup

VirtualBox VM settings:
1. General —> Advanced
    1. Shared Clipboard: Bidirectional
    2. Drag’n’Drop: Bidirectional
2. System —> Motherboard
    1. Base Memory: max out green
    2. Pointing Device: USB Tablet
3. System —> Processor —> Processor(s): max out green

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xrandr --newmode "1920x1080_60.00"  172.80  1920 2040 2248 2576  1080 1081 1084 1118  -HSync +Vsync
xrandr --addmode Virtual1 1920x1080_60.00
xrandr --output Virtual1 --mode 1920x1080_60.00

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oc delete imagestream my-app
oc delete buildconfig my-app
oc delete dc my-app
oc delete service my-app
oc delete imagestream my-app
oc delete route my-app

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if [ $# -eq 0 ]; then
  echo "No new project name specified. Exiting."
  exit 1
fi

read -p "OpenShift username: " username
read -s -p "OpenShift password: " password

mkdir openshift-mig-temp

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# stop all containers
docker stop $(docker ps -a -q)

# delete stopped containers
docker rm $(docker ps -a -q)

# delete all images
docker rmi -f $(docker images -q)

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Roll back deployment to previous version:
$ oc rollback <app-name> --to-version=<deployment-num>

Get access to pod where it fails:
$ oc debug <pod-name>

Create image stream from image in external registry:
$ oc import-image <image-name> --from=nexus.my-domain.com:5000/<image-name> --confirm

View logs relating to build:

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List all containers:
$ docker ps -a

Get shell in running container:
$ docker exec -it <container name> /bin/bash

Stop a specific container:
$ docker stop <container-id>

Stop all running containers:

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$.ajax({
  beforeSend: function(request) {
    request.setRequestHeader("APP_USER", "CN=TestUser1, OU=My Org Unit, O=My Org, C=US");
  },
  url: "/app/rest/list/ADMIN_TYPE",
  success: function(data) {
    console.log(data);
  }
});

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Use '\' to escape '!'

Upload 
$ curl -k -v -u myuser:mypassword --upload-file test.zip https://nexus.my-domain.com:9443/repository/binary-artifact-repository/test.zip

Download
$ curl -k -v -O -u myuser:mypassword https://nexus.my-domain.com:9443/repository/binary-artifact-repository/test.zip

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Find file (case-insensitive) with name beginning with "postgres" in current directory:
$ find . -iname postgres*

Find directory (case-insensitive) in filesystem with name "s2i":
$ sudo find / -type d -iname "s2i"

Find text within a set of files in current directory:
$ find . -iname *.java | xargs grep -i someTextToSearchFor