Common oneliners used in Bash and their purpose

cookbook.sh

# Find IP address from host
nslookup $hostanme
# https://superuser.com/a/1414856
nslookup $hostname | grep -i address | awk -F" " '{print $2}' | awk -F# '{print $1}' | tail -n 1

# DNS issues: better use dig as host will use the local cache of the machine 
# @ specifies another resolver than the local cache DNS 
dig google.com +short @1.1.1.1

## Docker 
# Run notebook forward port and net 
docker run -p 8888:8888 --net=host -it scipynb

## Kube
# Remove completed pods
kubectl get pods -n $namespace | grep Completed | cut -d" " -f1 | xargs -n 1 kubectl delete -n $namespace pod 
# Generate basic auth https://kubernetes.github.io/ingress-nginx/examples/auth/basic/

# Where file.txt is a file with https:// links
wget -i ~/file.txt --http-user=myName --http-passwd=pwd

# Goofys
export bucket_name=blabla
folder_name=$bucket_name
mkdir $folder_name
goofys --region $region --endpoint $endpoint --profile oio $bucket_name $folder_name