关闭终端窗口后如何运行特定的bash shell脚本？

Question

By inserting a script in .bashrc file, I am able to run that script when new terminal window is created. Is there any similar method to run a script after closing a terminal?

All I want is to keep the count of number of terminal windows that are currently open. If you have any other method to do it, please tell.

Thank you.

Answer 1

You should just be able to grab a count of PTY's on the system: ls /dev/pts/ | wc -l ls /dev/pts/ | wc -l These should only be active in that directory if they are in use.

Answer 2

You can use this line:

ps a | awk '{print $2}' | grep -vi "tty*" | uniq | wc -l

first get all processes with ps , pipe it to awk to get just the second column, use grep to ignore the "tty*", omit multiple lines with uniq and then count the lines with wc -l .

This should do the trick.