How can I find out if a specific program is installed?
5342
How can I check if a package is installed (no superuser privileges)?
111153
How do I remove/uninstall a program that I have complied from source?
64045
How do I find out what program 'owns' a hotkey?
114175
How do I test if another installation is already in progress?
125801
How do I determine if my system is Windows 10 using the command line?
10549
How do I check what version of Python is running my script?
6958
How can I check if a program exists from a Bash script?
15281
How to get a complete list of all applications installed?
112660
How to get list of installed packages with installation date?
71254
Determine when Windows was installed on a computer
14163
Finding package name of installed software
12993
How to know which program has just played sound?
71959
Is there any simple way to access installed programs?
58791
How can I find which operating system my Ruby program is running on?
22688
Is there an application that can tell you what DLL's and other dependencies a program uses?
4623
How do I get a list of installed files from a package?
7101
How to find out which (not installed) Debian package a file belongs to?