I suppose you have Skype installed in your ubuntu or centos linux desktop. Follow this guide if you don’t have Skype installed in ubuntu or centos linux. Sometimes you want to run your multiple skype accounts simultaneously. After installing Skype in ubuntu or centos linux, Open your terminal and execute
skype --secondary --dbpath=/tmp &
This command will open a new skype application . You can reuse the command to open multiple skype applications.
Here is the proof for running multiple skype application. Here I’m running three Skype applications