Linux Working With Processes

     Linux is a multitasking operating system that can run several processes simultaneously. A process is an instance of a program in execution. In Linux, every process is identified by a unique process ID (PID).

Here are some key concepts related to working with processes in Linux:

  1. Process creation: A process can be created in Linux using the fork() system call. When a process is created, it inherits the memory space and resources of its parent process.

  2. Process management: Linux provides several system calls to manage processes, such as kill(), which is used to terminate a process; wait(), which waits for a child process to complete; and exec(), which is used to replace the current process with a new one.

  3. Process scheduling: Linux uses a scheduler to allocate CPU time to processes. The scheduler is responsible for deciding which process should be run next based on various criteria, such as priority, time slice, and CPU usage.

  4. Process communication: Processes can communicate with each other in Linux using several mechanisms, such as pipes, sockets, and shared memory. These mechanisms allow processes to exchange data and synchronize their activities.

  5. Process monitoring: Linux provides several tools to monitor processes, such as ps, top, and htop. These tools display information about running processes, such as their PID, CPU usage, and memory usage.

Working with processes in Linux requires a good understanding of the system calls, tools, and concepts related to process management, scheduling, communication, and monitoring.

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