As an experienced website operations expert, I am well aware that the stable operation of an efficient content management system like AnQiCMS is inseparable from the careful configuration of every detail. Among them, the use ofcrontabTo guardstart.shScript, ensuring that the AnQiCMS service remains online is an important means for many operators to ensure the reliability of their websites.However, in this process, file execution permission issues often become the 'roadblock' for many users.start.shThe script incrontabhas the correct execution permissions in the environment.

Clear the fog: Ensure AnQiCMSstart.shThe script incrontabhas the correct execution permissions

For scenarios where AnQiCMS is manually deployed or deployed via the command line, we often configure acrontabtask tostart.shThe script checks the AnQiCMS service every minute to see if it is running. If it is not, it automatically starts it.This is like installing an eternal 'guardian' for your website service.However, whether this 'guardian' can smoothly fulfill its duties depends on whether it has obtained sufficient authority.

Firstly, we need to be clearstart.shThe core function of the script. According to the AnQiCMS deployment document, this script is not just a simple launcher, it also includes checking processes, setting the running path, andnohupThe method runs the AnQiCMS core binary program in the background (usually named)anqicms). This means that for it to run successfully instart.shIncrontab, it itself and the functions it callsanqicmsBinary files, must all have executable permissions.

Next, make surestart.shThe script itself having execution permissions is the foundation of foundations.In Linux systems, whether a file is executable is determined by its permission bits.Generally, newly uploaded or created scripts may not have execute permissions./www/wwwroot/anqicms.com), then execute the following command to grantstart.shExecution permission:

chmod +x start.sh

This willstart.shScript set as an executable file. However, merely grantingstart.shInsufficient execution permissions. Don't forget,start.shThe internal will call a namedanqicmsto start the service using the binary program. This core Go language compiled program also requires executable permissions. Therefore, under the AnQiCMS installation directory, you also need to assignanqicmsAssign execution permissions to the file:

chmod +x anqicms

After completing these two steps, the execution permission issue of the file itself is usually resolved. However, when the script bycrontabWhen scheduling execution, some special cases related to the environment may also occur.crontabTasks usually run in a very stripped-down environment, unlike running commands directly in the terminal, it does not automatically inherit the full environment variables of the current user, especiallyPATHVariable. This means that if incrontaban entry, orstart.shinside the script, the system may not be able to findstart.shthe script itself, orstart.shnot foundanqicmsBinary file.

To avoid this embarrassing situation of 'file not found', it is strongly recommended that you incrontabentries.start.shUse an absolute path. For example, if your AnQiCMS is installed in/www/wwwroot/anqicms.comso thatcrontabThe entry should be written as:)

*/1 * * * * /www/wwwroot/anqicms.com/start.sh

instead of simply)*/1 * * * * start.shor*/1 * * * * ./start.sh. This way, regardless of)crontabwhich working directory it is started in, the script can be located and executed accurately.

Moreover, it is worth noting that,crontabThe task is executed with which user identity. When you usecrontab -ecommand editcrontabthe task, you are configuring the task for the currently logged-in user. For example, if you log in asrootthe user and executecrontab -eThen the task will be executed withrootidentity. If you run AnQiCMS withwwwor any other non-root user identity, then when configuringcrontabyou should use that user identity to editcrontab(For example,sudo -u www crontab -eor directly switch towwwEnsure the user has edited)crontabthe installation directory of the task execution user for AnQiCMS and all its files (including)start.sh/anqicmsThe binary file and log directory must have read, write, and execute permissions. Otherwise, even if the script itself has execution permissions, the executing user cannot access it, and the task will still fail.

Finally, when you have modified the installation path of AnQiCMS, for example from/www/wwwroot/anqicms.commigrated to/opt/anqicms, be sure to check and updatestart.shthe defined in the script internalBINPATHa variable.start.shscripts usually have something likeBINPATH=/www/wwwroot/anqicmsThe definition, this path must be consistent with the actual installation path of AnQiCMS, ensuring that the script can find and execute the core correctly.anqicmsBinary file.

By these detailed checks and configurations, your AnQiCMSstart.shthe script will be able tocrontab[en] Has the correct execution permissions, thus effectively protecting your website service, ensuring that AnQiCMS runs stably and reliably.

Common Questions (FAQ)

[en] Q1: Mystart.sh[en] The script has passedchmod +xgranted execution permission, andcrontabthe entry also used an absolute path, why the service is still not running?

A1: In this case, the problem may lie incrontabThe execution user of the task. Please check.crontabWhich user is the task running as (for example, you are running as)rootEdited by the usercrontab, or aswwwOr edited by other non-root users? Then, confirm the installation directory of AnQiCMS and its internal files (includingstart.shandanqicmsThe binary file has sufficient read, write, and execute permissions. In addition,start.shthe defined in the script internalBINPATHWhether the variable is completely consistent with the actual installation path of AnQiCMS is also very important. Finally, for debugging, you can try to redirect the output of the command to a file, such ascrontabredirecting the command output to a file, for example*/1 * * * * /www/wwwroot/anqicms.com/start.sh >> /tmp/cron_anqicms.log 2>&1Then check the log file for more detailed error information.

Q2: How to verifycrontabWhether the task was executed successfully, or if the AnQiCMS service is really running?

A2: You can verify in multiple ways.

  1. Check process:Execute in the command lineps -ef | grep anqicms | grep -v grep. If the AnQiCMS service is running normally, you should see the relevant process information.
  2. Check port:Executelsof -i:8001(If your AnQiCMS is using port 8001). If the port is occupied and process information is displayed, it means the service is listening.
  3. Check logs:AnQiCMSstart.shThe script usually generatescheck.logandrunning.logIn the AnQiCMS installation directory). Checking these log files can understand the script execution status and the startup status of AnQiCMS. At the same time, system logs (such as/var/log/syslogor/var/log/cron）may also recordcrontabThe execution result of the task and any error messages.

**Q3: If I move AnQiCMS from a