I'm using Gnome. In vim, I want to map a key to switch to Firefox. I know that I should use bash commands (a command in form of !...). Is it possible to switch to an application using its PID?
Switch to an application using its PID
command line;x11;window
The first two examples will activate the first listed Firefox window, based on its Title.  Firefox always ends its Title-bar with Mozilla Firefox... listed means: as listed by wmctrl querying X. The first example uses a fuzzy match for the title.    wmctrl -a Mozilla FirefoxOr, to get the title more specifically: wmctrl -Fa $(wmctrl -l | sed -rn 's/^([^ ]+ +){3}(.*Mozilla Firefox)$/\2/p')If you know the PID of the process behind a window, you can use this command:   wmctrl -ia $(wmctrl -lp | awk -vpid=$PID '$3==pid {print $1; exit}') 