unix linux系统查看进程内存（UNIX Linux system view process memory）.docVIP

unix linux系统查看进程内存（UNIX Linux system view process memory） Unix/linux system view process memory Classification: operating system Abstract: This paper describes the management process when the basic concept and process management tools; for example, classification of the introduction and application of the focus on process management tools, including PS, pgrep, top, kill, pkill, killall, nice and renice etc.. Catalog 1, procedures and processes; 1.1 process classification; Attribute of 1.2 process; 1.3 parent process and child process; 2, process management; 2.1 PS monitor process tool; 2.1.1 PS parameter description; Examples of 2.1.2 PS applications; 2.2 pgrep 3, the termination of the process of kill, killall, pkill tools and xkill; 3.1 kill 3.2 killall 3.3 pkill 3.4 xkill 4, top monitoring system task tools; 4.1 top command usage and parameters; Examples of 4.2 top applications; 5, process priorities: nice and renice; 6, about this article; 7, postscript; 8. Reference document; 9. Related documents; ++++++++++++++++++++++++++++++++++++++ text ++++++++++++++++++++++++++++++++++++++ 1, procedures and processes; The program is in order to complete certain tasks to design software, such as OpenOffice program. What is the process? Process is the running program. A running program, there may be multiple processes. For example, the LinuxSir.Org WWW server is a Apache server, when you start the service, there may be a lot of people come to visit, that is to say many users to request the httpd service at the same time, the Apache server will create multiple httpd to the service process. 1.1 process classification; The process is generally divided into the interaction process, batch process and daemon class 3. It is worth mentioning that the daemon is always active, generally running in the background, the daemon is generally activated by the system automatically boot or super management user root boot through the script to boot. For example, in Fedora or Redhat, we can ru