crontab不执行，提示not found？

wenhq

more /var/spool/cron/crontabs/*

abcfy2

回复 9# wenhq

1. ok988@iotdemo:~$ more /var/spool/cron/crontabs/*
   
2. /var/spool/cron/crontabs/*: Permission denied
   
3. ok988@iotdemo:~$ sudo more /var/spool/cron/crontabs/*
   
4. [sudo] password for ok988:
   
5. /var/spool/cron/crontabs/*: No such file or directory
   
6. ok988@iotdemo:~$
   

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abcfy2

回复 11# wenhq


    不对，进入目录可以看到ok988这个账户的cron任务。以前写入/etc/contab的，后来就把crontab的任务删了，直接用ok988这个账户创建crontab -e来创建cron任务

1. root@iotdemo:/var/spool/cron/crontabs# ll
   
2. total 12
   
3. drwx-wx--T 2 root  crontab 4096 May  1 19:49 ./
   
4. drwxr-xr-x 5 root  root    4096 Sep 24  2012 ../
   
5. -rw------- 1 ok988 crontab 1429 May  1 19:49 ok988
   
6. root@iotdemo:/var/spool/cron/crontabs# vim ok988
   
7. root@iotdemo:/var/spool/cron/crontabs#
   

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wenhq

大小不为0， 你先file ok988 然后more ok988.

abcfy2

回复 14# wenhq

1. root@iotdemo:/var/spool/cron/crontabs# ll
   
2. total 12
   
3. drwx-wx--T 2 root  crontab 4096 May  2 10:02 ./
   
4. drwxr-xr-x 5 root  root    4096 Sep 24  2012 ../
   
5. -rw------- 1 ok988 crontab 1429 May  1 19:49 ok988
   
6. root@iotdemo:/var/spool/cron/crontabs# file ok988
   
7. ok988: UTF-8 Unicode English text
   
8. root@iotdemo:/var/spool/cron/crontabs# more ok988
   
9. # DO NOT EDIT THIS FILE - edit the master and reinstall.
   
10. # (/tmp/crontab.KxeMx8/crontab installed on Wed May  1 19:49:15 2013)
    
11. # (Cron version -- $Id: crontab.c,v 2.13 1994/01/17 03:20:37 vixie Exp $)
    
12. # Edit this file to introduce tasks to be run by cron.
    
13. #
    
14. # Each task to run has to be defined through a single line
    
15. # indicating with different fields when the task will be run
    
16. # and what command to run for the task
    
17. #
    
18. # To define the time you can provide concrete values for
    
19. # minute (m), hour (h), day of month (dom), month (mon),
    
20. # and day of week (dow) or use '*' in these fields (for 'any').#
    
21. # Notice that tasks will be started based on the cron's system
    
22. # daemon's notion of time and timezones.
    
23. #
    
24. # Output of the crontab jobs (including errors) is sent through
    
25. # email to the user the crontab file belongs to (unless redirected).
    
26. #
    
27. # For example, you can run a backup of all your user accounts
    
28. # at 5 a.m every week with:
    
29. # 0 5 * * 1 tar -zcf /var/backups/home.tgz /home/
    
30. #
    
31. # For more information see the manual pages of crontab(5) and cron(8)
    
32. #
    
33. # m h  dom mon dow   command
    
34. 
    
35. SHELL=/bin/bash
    
36. PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
    
37. #每天4:00执行mysql备份
    
38. 0 4    * * *        ~/mysql_backup/mysql_backup.sh >> /tmp/mysql_backup.log
    
39. 
    
40. #每6小时执行磁盘空间监测，超过预警给管理员发邮件
    
41. 0 */6        * * *        ~/monitor_disk.sh >> /tmp/monitor_disk.log
    
42. 
    
43. root@iotdemo:/var/spool/cron/crontabs#
    

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wenhq

你的脚本写绝对路径吧。为啥写相对路径？

abcfy2

回复 16# wenhq


    早就试过了，都不行，绝对路径也是not found，相对路径在mail中也显示的绝对路径，都执行不了

wenhq

ls -l urscript 看下权限

abcfy2

回复 18# wenhq

1. ok988@iotdemo:~$ ll monitor_disk.sh
   
2. -rwxr-xr-x 1 ok988 ok988 1811 May  1 19:49 monitor_disk.sh*
   
3. ok988@iotdemo:~$ ll mysql_backup/mysql_backup.sh
   
4. -rwxr-xr-x 1 ok988 ok988 1014 May  1 19:21 mysql_backup/mysql_backup.sh*
   

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刚才试了下，把/home/ok988的权限改为755就可以执行脚本了，看来真的是cron没有用当前用户的身份来执行？奇怪了，别的服务器上也是这样设置的，都没有问题，偏偏这台服务器出问题了

wenhq

回复 19# abcfy2


    more /etc/cron.*
看一下。