How to check whether Gutenberg editor is installed or not
7639
check if Gutenberg is currently in use
46404
Check for the indentation code control
158318
How to Detect if I'm Compiling Code with a particular Visual Studio version?
114175
How do I test if another installation is already in progress?
69489
How do I figure out what package something is in without resorting to Google?
70138
How can I find out what modifications a program’s installer makes?
17649
Is there a way to check if a file is in use?
124855
How can I check /dev/xvda1?
62293
How do I detect what .NET Framework versions and service packs are installed?
115780
Is there a way to know which GTK version is installed using the command line?
22506
Is there a way to find out whether an updated program/package lands in the official Ubuntu release repositories?
66101
How to check which package created a user?
6440
Can I see why a package is installed?
123153
How to tell if a certain package exists in the apt repos?
36790
Detect which TeX engine is used
151045
How can I determine the installed edition of Windows XP if the OS does not boot up?
129041
How can I test programmatically if a path/file is a shortcut?