when entering the command $ sudo apt upgrade I receive the following output.
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
E: Could not get lock /var/cache/apt/archives/lock. It is held by process 95610 (aptitude)
N: Be aware that removing the lock file is not a solution and may break your system.
E: Unable to lock directory /var/cache/apt/archives/
I am afraid if the two error codes influence the system performance in the long term.
I was installing the aptitude function but unfortunately I cannot recall the command I entered that caused the issue.
kill -9 95610and try again. – Artur Meinild Aug 25 '22 at 11:42