background job

Process Status:1) Overview of the status of the process:1.1) Running (R), running or going to run1.2) interruptible (S), blocked while waiting for an event, may be activated by a signal1.3) uninterruptible (D), blocked while waiting for an event,

Reference from Linux command DaquanTo see if the shell command is a shell built-in command, use the type to determine: $ Type cdCD is a shell builtin$ Type pingPing is/bin/ping All built-in commands are as follows:ShThe

Managing Shell JobsWhen moving jobs between the foreground and background, it could be useful to a overview of all current jobs. To get such a overview, use the jobs command. As can see in Table 9.2, this command gives an overview of all jobs

Date Kernel version Architecture author GitHub CSDN 2016-06-14 Linux-4.6 X86 & Arm Gatieme Linuxdevicedrivers Linux process management and scheduling A unique

1, use the W command to view the current system login user[[Email protected] ~]# W Geneva: -:GenevaUp4: *,3Users, load average:0.00,0.01,0.05USER TTY from [email protected] IDLE jcpu PCPU whatroot pts/0 192.168.1.100 Geneva: - 4.00s0.06s0.

We often run into nohup command>/dev/null 2>&1 & this form of command under Linux. First of all, we're about to break down this command. The first is an indication that the nohup current user and system are in the city ignoring the response hup

Unit SeventhI. Process definitionProcess is the work that the CPU does not completeSecond, PS commandPsA # #关于当前环境的所有进程X # #与当前环境无关的所有进程F # #显示进程从属关系E # #显示进程调用环境工具的详细信息L # #长列表显示进程的详细信息U # #显示进程的用户信息Illustration: PS parameter use650) this.width=650;

Reading data from the console is a more common feature, and implementation in the previous version of JDK 5.0 is more complex and requires manual processing of the system's input stream. Interestingly, starting with JDK 5.0, the method of entering

Function of kernel: process management, file system, network function, memory management, driver, security functionProcess: A copy of a running program that has a life cycleFixed format for Linux kernel storage process information: task structLinked

Daemon (daemon) is the process that is running in the background (daemon).This article describes how to start a Web app as a daemon.First, the origin of the problemAfter the Web application is written, the next thing to do is to start it and keep it

From the previous articles in my blog, it has been emphasized that the operating system is a multi-process collaborative operation to achieve the logical purpose of the entire operating system, to achieve an artificially manipulated system:The

The currently running process remains after SSH is closedFor a variety of reasons, you need to login to the Linux or Unix host via SSH, many times we need to start some services via SSH terminal or run some programs, but by default, when we close

1. When will the background task be used?When the local machine needs to perform an action, this action takes a long time, and the machine can only wait during that time, and we want to be able to do other things during the time the machine is

Set bash options with built-in set and SHOPT commandsThe set command can be used to customize the shell environment, using the option "O" to turn options on or off. For example, open the options: Set-o option, close the Select item: Set +O

1. Legal shell and/etc/shells functions     shell has multiple versions, including Bourne Shell (SH), C shell, K-Shell, tcsh, etc. Normally Linux uses the Bourne Again Shell (Bash), which is the enhanced version of SH       can check/etc/shells to

SIGHUP terminating process terminal line hang-offSIGINT terminating process Interrupt processSigquit establish core file termination process, and generate core fileSigill Creating a core file illegal directiveSIGTRAP build core file tracking

A background job management instance that obtains a job queue from the database, creates a new process for execution, and waits for the job to end. Code fragment: Class Controller_jobs extends controller_base{ Public function before () { Parent::

A partitionView Swap partition Swapon-s /dev/sdb8 activation -a/dev/sdb8 -s (SDB8 entered the file) Provide memory service free (buffers cached) View all system Information

Crontab Concept/Introduction The crontab command is used to set instructions that are periodically executed. This command reads the instruction from the standard input device and stores it in a "crontab" file for later reading and execution. Cron

Introduction If you feel that you are still alive, why can others do so much? is not often 8 hours in the class down, but do not know what they have done? is not accustomed to in the email, BBS, Google reader switch between, feel very busy? You