ulimit:tldr:b2a5c
ulimit: Set max per-user process limit.
$ ulimit -u 30
try on your machine
The command ulimit -u 30 is used to set the limit on the maximum number of processes that a user can have active at the same time.
In this case, the command sets the "user processes" limit to 30, meaning that a user can have a maximum of 30 processes running simultaneously. This limit includes both the user's own processes as well as any child processes spawned by those processes.
Setting a limit on the number of user processes can be beneficial in scenarios where you want to restrict the amount of system resources that a particular user can consume. It helps prevent excessive resource usage that can potentially degrade system performance or lead to resource exhaustion.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.