in reply to
Re^2: How to make a thread to wait till a command on shell get completed.
in thread How to make a thread to wait till a command on shell get completed.
Can you share example code that recreates the issue that you're seeing? Also, do you have a need for using back ticks?
In the mean time, without seeing your code, I can think of two suggestions. First, use the system command instead of backticks like BrowserUk suggested. Second, try using modules like Archive::Tar to extract your tar files instead of using backticks.