Closing a GUI window from the command line

Question

I often run scripts to transform a CSV file which I then preview in LibreOffice. I often open the CSV with xdg-open file.csv. However, if I run that command when the file is already open, LibreOffice simply focuses that window - it doesn't reload the file from disk.

Is there a way, from the command line, that I can specify a window to close in the GUI? I can't just kill the process, since LibreOffice shares a single pid for all its windows. I'm running the latest version of Cinnamon on Mint 17.1.

Solution

You could use xkill, xdotool or wmctl.

type xkill on the terminal and then click on the window you want to close.

Comments

[VaTo]

type xkill on the terminal and then click on the window you want to close.

[guntbert]

You should put this explanation into your answer.

[Jon G - Megaphone Tech]

Based on this, I found xdotool meets my needs: `xdotool search "$FILENAME" windowactivate --sync key --window 0 --clearmodifiers alt+F4.

[Brōtsyorfuzthrāx]

xkill will kill the process (not just close the program).