Linux Process

  • Fundamental unit of work on Linux System
  • Created by clone(2) System call
    • fork(2) is a wrapper of clone(2)
  • Have own ID, address space, stack, heap, file descriptiors …
  • Arrenged in hierarchy, PID 1 is the root (“init” -typically systemd)
  • ps shows table of processes
  • pstree shows the tree