The use case not handled by invalidating the cache when the PATH changes is when the locations of executables change. This can be common when you are using the shell to add or remove programs, only to have it cache the last place it found them. – Adam Dec 7 '17 at 21:31
kernel - How do you empty the buffers and cache on a Linux The things you say about sync are wrong: according to the linux doc, writting to drop_cache will only clear clean content (already synced). Besides, even if it drops unsynced data, saying that typing the sync command just before clearing cache would save your data is wrong: there is a non zero time between the sync command drop_cache write, so any data could be added during this time lapse. How to Flush DNS Cache (Windows, Mac, Chrome) Jul 07, 2020 How To Flush Contents Of a Memcached Server Using Command Jul 19, 2019 How To Clear Cache / Buffer Memory & set Cron Job on Linux
May 14, 2020 · But the flip side is that the apt package cache can quickly swell to several hundred MBs. This command tells you how big your apt cache is: du -sh /var/cache/apt/archives. To clean the apt cache on Ubuntu simply run the following command. sudo apt-get clean. The apt clean command removes ALL packages kept in the apt cache, regardless of age or
How to Install and Configure Apt Cache Server On Ubuntu 18 Apt Cache Server available for both Ubuntu and Debian based operating systems. In case, if you need to set up 20 Ubuntu Desktop machines for newly joined developers in your organization. And those all need to be applied with security patches and developers tools, sure it will consume a lot of your bandwidth. Debian / Ubuntu Linux: Clear the Package Cache - nixCraft
Clearing ARP and DNS Cache in Linux
python - Removing pip's cache? - Stack Overflow pip install --no-cache-dir