utf18

RUN apt-get update && \
  apt-get install -y --no-install-recommends \
  some \
  programms \
  here \
  && rm -rf /var/lib/apt/lists/*
  
  

utf18

Couldn't open libGL.so.1: libGL.so.1: cannot open shared object file: No such file or directory

## solution:

apt-get install libglu1

utf18

if you do not see your precious tasks then try to change do to require in the Rexfile

old:
do "Rexfile.d/$_" for (grep { m/.task$/ } listfiles("Rexfile.d/"));
new:  
require "Rexfile.d/$" for (grep { m/.task$/ } list_files("Rexfile.d/"));

utf18

FROM repo
MAINTAINER Name <mail@example.com>

EXPOSE PortNumber

ARG DEBIAN_FRONTEND=noninteractive
RUN apt-get update && apt-get install -y --no-install-recommends \
    package \
 && rm -rf /var/lib/apt/lists/*

utf18

docker run --cap-add=NET_ADMIN --device /dev/net/tun:/dev/net/tun -i -t alpine /bin/ash

utf18

netstat -nr | grep '^0\.0\.0\.0' | awk '{print $2}'

utf18

package main

import "fmt"

func main() {
	sum := 0
	for i := 0; i < 10; i++ {
		sum += i
	}
	fmt.Println(sum)

utf18

VBoxManage convertfromraw --format VDI [filename].img [filename].vdi

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# finds and deletes files newer than 1 min
find . -type f -cmin -1 -delete

utf18

Package Manager
Cleanup Command
yum
yum clean all
dnf
dnf clean all
rvm
rvm cleanup all
gem
gem cleanup