Linux

• Linux - Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
• Linux - add user to specific group
• Linux - check distribution version (distro)
• Linux - copy entire directory with scp
• Linux - find machine ip address from command line
• Linux - how to change git editor from vi to vim?
• Linux - how to exit vim editor?
• Linux - how to sort alphanumeric strings
• Linux - iptables redirect port 80 to 8080
• Linux - kill process listening on specific port
• Linux - list all clients connected to my http server over 80 port
• Linux - list all connected tcp clients
• Linux - list available groups in Bash
• Linux - unable to login to jenkins user (CentOS 7)
• Linux - unpack zip file
• Linux / Bash - add additional bin directory to system PATHs
• Linux / Bash - print current Unix time in milliseconds
• Linux / Bash - print current Unix time in seconds
• Linux / Ubuntu - set system JAVA_HOME env variable
• Linux empty a file
• Linux kill mysql process
• Linux passwd solution for - BAD PASSWORD: The password fails the dictionary check - it is based on a dictionary word
• Linux screen - most useful commands with practical examples