How do I get the full command line for an X application via "wmctl" and "ps"?

I recommend using ps -h -e -o pid,argsthe command with a pipegrep

This should provide the full command path with arguments and options.

For example, to find all running java programs and their arguments (possibly extensive):

ps -eo pid,args | grep java

In your case I would suggest a small awk script that looks for the pid given as the third input field in the current line:

wmctrl -l -p|awk '{system("ps -h --pid "$3" -o args")}'

Sample output

nautilus-desktop --force
/usr/libexec/gnome-terminal-server
/usr/libexec/gnome-terminal-server

renew

Convert the current directory ./to a full path. It is assumed ./to represent the current working directory. Add the following pipeline.

wmctrl -l -p|awk '{system("ps -h --pid "$3" -o args")}'|sed "s|^\./|$PWD/|"

DesktopEditorsTo find a script or program on your computer , use find / -name "DesktopEditors".

But I believe it's useless if you're trying to reverse engineer a web-based application that requires some kind of browser emulator.