bash cron job

For PHP itself there is no set of solutions to perform timed tasks, but it is done with the sleep function. Such a party is to do some configuration in advance, such as the implementation process:Ignore_user_abort();//turn off the browser and the PHP script will continue to execute. Set_time_limit(0);//set_time_limit (0) allows the program to be implemented without restrictions $interval=60*30;//running every half hour Do{ //Here is the code you want to execute Sleep($int

, from the log can be seen as/bin/sh:java command not foundThis shows that the environment variables used by Cron are not the environment variables of the system, but their environment variables, which is plainly, crontab cannot read the information under the/etc/profile.Iv. Solutions:1. Modify Crontab to invoke a script instead of executing the jar directlyComing: Cornjob for 0 * * * java-jar/home/opscoder/topo-audit.jarModified to: 0 * * */home/opsc

There is no solution for PHP itself to execute scheduled tasks, but it is completed by using the sleep function. In this way, you need to make some configuration in advance, such as the implementation process: (); (0); =60*30; (); }(); However, I have some concerns about the performance of this method, but it is also a temporary method. I recommend that you use scripts to implement it. By using the scheduled task mechanism of the OS itself, windows will use bat scripts. Howev

Setting up Cron Job Using crontab:Step 1:open a Terminal windows (Command line) in Linux. Step 2:the Following is a list of cron directories:/etc/cron.hourly /etc/cron.daily/etc/cron.weekly/etc/cron.monthly Copy your shell script ' script.sh ' or ' script ' into one of the directories above. If you are need to run the script hourly, place your script file in the

Cron is a Daemon,cron job for Linux that is a task that Cron is scheduled to perform. Cron uses a special configuration file, the crontab file, to set the execution time or frequency of a command or script. Crontab has previously been introduced to the basics of use, no long

The previous two is a simple trigger (Simpletrigger), Simpletrigger can only handle simple events, if you want to be flexible to trigger the task, you need to Crontrigger this important person. Crontrigger is also one of the most important features of quartz, by quartz specific cron expression to determine a certain kind of time, can complete similar "November 11, 2011 (God Stick Day, has passed), each Wednesday xxx" complex timing tasks. Code or old

The command to view a timed task is: crontab-l the command to edit a timed task is: CRONTAB-E (effective immediately after editing if comments can be added at the beginning of the line with # and VI) Timed task description each action a taskEach line is divided into six sections, each separated by a space and separated by commas.Minute hour day_of_month month weekday commandUsing * in the first five fields means all points in timeminute:0-59Hour:0-23,0 stands for 0 pointsDay_of_month:1-31Month:1

Bash job control Job control is a powerful function provided by bash Shell. It allows you to choose whether to run a program, that is, a job, on the foreground or in the background.1. Enable bash

[Linux] job Management in Bash, bashjobI was not prepared to write this blog, because Task Management (job Management) is very common, so I feel that there is no need to write such a thing. But if you think about it, record it. Maybe someone will use it. I wonder if you have ever encountered such a situation. When you are eager to open VIM and write code to the r

Job Management in BashI was not prepared to write this blog, because Task Management (job Management) is very common, so I feel that there is no need to write such a thing. But if you think about it, record it. Maybe someone will use it. I wonder if you have ever encountered such a situation. When you are eager to open VIM and write code to the right corner, the operating MM or product MM is panting: "hurry

??I was not prepared to write this blog, because task management (job management) is very common, so that there is no need to write such a thing. But think about it, or record it, maybe someone will use it. I do not know if you have encountered such a situation, when you open vim in a cheerful mood, write code written to the busy, operating mm or product mm panting run over: "Hurriedly help me Run XX data, one will do PPT to use." But do not want to d

Linux and Unix are multi-task operating systems, that is, a system can run multiple tasks (processes) within the same period of time ). In this new blog series, I will list related Linux and Unix job control commands, you can execute multiple tasks in Bash, Korn, and POSIX shell. What is job control? Job control is not

Job control is a powerful feature provided by the Bash shell, which allows you to choose to run the program in the foreground or in the background, which is the job.1. Open bash's job control function#set-o MonitorOr#set-M2. Show jobs running in the background#jobs[1]-Run in Gedit [2]+ Run in Sleep + Represents the las

When running a job in Linux, you often encounter the following situations: a large number of jobs need to be run, and the time required to complete each job is not very long. if we run these jobs in serial mode, it may take a long time. If we run these jobs in parallel mode, the running time can be greatly reduced. furthermore, most of the current computers are in multi-core architecture. to make full use o

Yesterday, I wrote a shell script on the WordPad in windows. When I uploaded the script to Linux using winscp, I found that the script could not run.-Bash :. /job. SH:/bin/sh ^ m: Bad Interpreter: the file or directory does not exist. The reason is as follows: 1. to convert a DOS text file to a UNIX text file, perform the following operations on Linux: # unix2dos job