I am testing an sh script with crontab which simply creates a file
#!/bin/bash
PATH=$PATH:/bin:/usr/bin
TMP_FILE=/home/hmm/AppFlatForRent/i_am_running
touch "$TMP_FILE"
Now I want to run it on crontab and have used the following but failed
18 10 * * * sh /home/hmm/AppFlatForRent/hello.sh
Also this one
18 10 * * * usr/bin/sh /home/hmm/AppFlatForRent/hello.sh
I am also trying this
23 12 * * * /usr/bin/sh /home/hmm/AppFlatForRent/hello.sh
23 12 * * * sh /home/hmm/AppFlatForRent/hello1.sh
23 12 * * * /home/hmm/AppFlatForRent/hello2.sh
Anyone knows whats the problem?
Solution:
23 12 * * * sh /home/hmm/AppFlatForRent/hello1.sh
This works!
Give the full path to the shell from cron starting with '/':
18 10 * * * /usr/bin/sh /home/hmm/AppFlatForRent/hello.sh
Or just leave the shell out and run the script directly if it is executable:
18 10 * * * /home/hmm/AppFlatForRent/hello.sh
Related
i am trying to schedule my script.sh script to run every day from monday to friday at 9:35 am. When I run my script with ./ directly in the terminal everything works fine. But when I tried to run in the crontab -e nothing worked.
Here is the list of what I tried:
- * * * * * root /bin/script.sh
- * * * * * root sh /bin/script.sh
- * * * * * root bash /bin/script.sh
- * * * * * root / bin / sh /bin/script.sh
- * * * * * /bin/script.sh
- * * * * * sh /bin/script.sh
- * * * * * bash /bin/script.sh
- * * * * * / bin / sh /bin/script.sh
I put an execution every minute just for the test.
Otherwise the final command will be something like this:
- 35 9 * * 1-5 /bin/script.sh
I must have forgotten an important step or something.
Of course I restartcron with each modification with:
- service cron restart
That should work
* * * * * /bin/bash /bin/script.sh
You can also add a shebang in the beginning of your script
#!/bin/bash
... your script here ...
This will let you execute the script directly by calling it with /bin/script.sh
The system will know that he need to start bash to execute it
You will need to get execution access right
chmod +x /bin/script.sh
This will give execution rights to anyone, check chmod man if you want to give execution access to only owner
The cron will be just like that
* * * * * /bin/script.sh
Keep in mind you will not get any output with a cron, you can still redirect stdout to a log file
* * * * * /bin/script.sh >> /var/log/myscript.log
If you use crontab -e as root, you don't need to use sudo or anything like that
I have some cronjobs written on several servers using CentOS7 in combination with Plesk 18.
When I check my cron log I see that the cronjobs are started.
Even when I manually start the scripts I want to use they work, but for some reason when the crontab does it, nothing is happening.
For instance some of the cronjobs I have are:
MAILTO=support#shoptrader.nl
0 0 * * * sh /var/www/vhosts/upgrade14.shoptrader.com/httpdocs/remove_files.sh
0 6 * * * sh /var/www/vhosts/upgrade14.shoptrader.com/httpdocs/security_htaccess/security_htaccess.sh
15 7 * * * sh /var/www/vhosts/upgrade14.shoptrader.com/httpdocs/backup_personal_files.sh
30 9 * * * sh /var/www/vhosts/upgrade14.shoptrader.com/httpdocs/find_hacks/find_hacks.sh
*/5 * * * * sh /var/www/vhosts/upgrade14.shoptrader.com/httpdocs/find_sql_injection/find_sql_injection.sh
15 0 * * * sh /var/www/vhosts/upgrade14.shoptrader.com/httpdocs/backup_templates_data/backup_templates_data.sh
If I check my log I see something like: Jan 14 09:30:01 web14 CROND[4402]: (root) CMD (sh /var/www/vhosts/upgrade14.shoptrader.com/httpdocs/find_sql_injection/find_sql_injection.sh)
I've notified myself with e-mails and get this response
/var/www/vhosts/upgrade14.shoptrader.com/httpdocs/find_sql_injection/find_sql_injection.sh: line 12: php: command not found.
Which doesn't make sense, because PHP is working on the server.
I have to run task which take time 3 or 5 minut
How to run multiple task in crontab -in same time ?
crontab -e
0 13 * * * /etc/rip_first_radio.sh
0 13 * * * /etc/rip_second_radio.sh
0 13 * * * /etc/rip_third_radio.sh
0 13 * * * /etc/rip_fourth_radio.sh
your crontab config is correct. But you can add add all into one script and run also.
vi main.sh
./etc/rip_first_radio.sh &
./etc/rip_second_radio.sh &
./etc/rip_third_radio.sh &
./etc/rip_fourth_radio.sh &
and add main.sh to cron.
0 13 * * * ./main.sh
Hello my server is restarting every hour, where the problem ?
Centos 6.6 with WHM/Cpanel
This my cronjob
root#server [/etc/cron.d]# crontab -l
0 6 * * * /usr/local/cpanel/scripts/exim_tidydb > /dev/null 2>&1
30 5 * * * /usr/local/cpanel/scripts/optimize_eximstats > /dev/null 2>&1
2,58 * * * * /usr/local/bandmin/bandmin
0 0 * * * /usr/local/bandmin/ipaddrmap
18 23 * * * /usr/local/cpanel/scripts/upcp --cron
0 1 * * * /usr/local/cpanel/scripts/cpbackup
0 2 * * * /usr/local/cpanel/bin/backup
35 * * * * /usr/bin/test -x /usr/local/cpanel/bin/tail-check && /usr/local/cpanel/bin/tail-check
45 */4 * * * /usr/bin/test -x /usr/local/cpanel/scripts/update_mailman_cache && /usr/local/cpanel/scripts/update_mailman_cache
30 */4 * * * /usr/bin/test -x /usr/local/cpanel/scripts/update_db_cache && /usr/local/cpanel/scripts/update_db_cache
30 */2 * * * /usr/local/cpanel/bin/mysqluserstore >/dev/null 2>&1
15 */2 * * * /usr/local/cpanel/bin/dbindex >/dev/null 2>&1
15 */6 * * * /usr/local/cpanel/scripts/autorepair recoverymgmt >/dev/null 2>&1
*/5 * * * * /usr/local/cpanel/bin/dcpumon >/dev/null 2>&1
46 0 * * * /usr/local/cpanel/whostmgr/docroot/cgi/cpaddons_report.pl --notify
7,22,37,52 * * * * /usr/local/cpanel/whostmgr/bin/dnsqueue > /dev/null 2>&1
42 4 * * * /usr/local/cpanel/3rdparty/bin/freshclam --quiet --no-warnings
Just looking at your cron jobs I can see that this job runs every hour, so that is a good place to start looking:
35 * * * * /usr/bin/test -x /usr/local/cpanel/bin/tail-check && /usr/local/cpanel/bin/tail-check
Also, this job runs twice an hour, but they happen so close together that it might appear to occur only once. Check it out next:
2,58 * * * * /usr/local/bandmin/bandmin
If you can, I would just comment out these 2 jobs for a few hours and see if that solves your problem. If it does then you know one of these is causing the reboot.
I know that crontab job emails output of the job to its user. In my crontab file I have multiple jobs like:
10 21 * * * test1.sh
13 21 * * * test2.sh
0 * * * * test3.sh
I don't want to receive email for test3.sh. Does below code works? I want to make sure that only for the last job I wont receive email.
10 21 * * * test1.sh
13 21 * * * test2.sh
MAILTO=""
0 * * * * test3.sh
See http://www.cyberciti.biz/faq/disable-the-mail-alert-by-crontab-command/
You could use something like
0 * * * * test3.sh >/dev/null 2>&1
There will be no output --> no mail sent.