Pico Etc/crontab VS Crontab -e
Sep 12, 2006
I have been searching for an answer on this for a couple of days and have yet to find one.
I am running a box with Centos.
If I Pico etc/crontab I get this type of output;
SHELL=/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=root
HOME=/
# run-parts
01 * * * * root run-parts /etc/cron.hourly
02 4 * * * root run-parts /etc/cron.daily
22 4 * * 0 root run-parts /etc/cron.weekly
42 4 1 * * root run-parts /etc/cron.monthly
If I crontab -e I get this type of output;
44 21 * * * /scripts/upcp
0 1 * * * /scripts/cpbackup
*/15 * * * * /usr/local/cpanel/whostmgr/bin/dnsqueue > /dev/null 2>&1
2,58 * * * * /usr/local/bandmin/bandmin
0 0 * * * /usr/local/bandmin/ipaddrmap
Why different?
I am taking it crontab using -e is not the same file as etc/crontab?
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Jul 7, 2007
how do I edit crontab using nano/pico editor -w instead of vi when executing "crontab -e"
I'm bad at using vi editor
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Aug 7, 2007
1) #> nano /var/spool/cron/root
Then type in the cron entry and save it
#> service crond restart
It cannot work if have not restart crond
2) #> crontab -e
Then type in the cron entry and save it
3) #> nano /etc/crontab
type in the cron entry and save it
I can use above three method without any problem.
However I cannot use crontab [filepath] method
4) #> crontab /home/admin/domain.com/www/testing/crontab.dat
*crontab.dat is a cron entry.
after type in this line,
I use crontab -l and see cron entry has been added to /var/spool/cron/root
However, the cron job will not run even I restart crond.
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Aug 20, 2007
It's been nearly a year i'm running several cron jobs on my CPanel hosting. The format for the command i used is as follows (putting aside the timing info):
php /home/account/public_html/subdir/cron/cron1.php
A few days ago, all cron jobs stopped working, probably because of a certain setting that my host changed. I contacted my host, and he replied that the format i'm using for the commands was not proper, and he gave me the proper command as:
GET [url]
I tried it, but it didnt work....
I googled the problem and got tens of commands... i simply wanna run a PHP file (the file itseld is functional if i browse it) every now and then, so what is the command i should be using?
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Mar 24, 2008
I have problem to change the /usr/bin/crontab permission to 4755 it still remain 0755 ...
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Nov 10, 2006
How does one get their cron jobs emailed to them?
How does one run crontab effectively?
I have been trying to start up a new cronjob. I wrote the line command chmoded it to 755 and put it in a folder cron.x
In my crontab I input the following:
30 23 * * * root run-parts /etc/cron.x
the first is minutes
the second hours, right?
At 23:30 on my server time, nothing happened. >_<;; I'd like to have my cronjobs emailed to me so that if there is an error, I can see it.
I've been combing google with little avail (can't find much other than unrelated blog junk on that engine nowadays anyway >_<) I figured WHT would be more useful.
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Jun 23, 2009
in which folder is the crontab generally located.
i run LAMP
also,i m looking for a specific cron right now (xbt_cron).once i find it ,what command do i use to run it manually.its supposed to run by itself..i just moved to a new server last week and now its stopped working.
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Mar 18, 2008
In trying to setup a cronjob on a new server I notice that cPanel tells me that usr/bin/crontab permissions are wrong and that they need to be changed to 4755.
When I log in to the server with WinSCP and attempt to change the permissions it just doesn't do it ... it looks like it's doing it, no errors, but it just leaves it the same!
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Jan 13, 2008
I found this line in my crontab file
0 7-23/3 * * * top.sh
when it's running?
and what is it doing?
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Aug 11, 2007
Is it possible to run a Crontab that executes an absolute URL?
I tried it, but it doesn't seem to work.
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Aug 23, 2007
I can't edit or add anything when using this command
crontab -e
all the jobs appears but I can't edit
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Feb 5, 2007
i created a new cron job with "crontab -e" command by using the "root" user.
* * * * * php -f /path/file.php
i tried it for php -q too. while i type this command on the shell the php file works. there is no problem with crontab rule too. the chmod of file.php is 777, user root group wheel..
but it cant work. i couldnt understand why it aint.
i created a shell file and changed the cron like:
* * * * * /path/file.sh
and in file.sh:
#!/bin/sh
php -q /path/file.php
mkdir /path/anydir
so, /path/anydir have been created but file.php not executed. so the problem is not about cron rule.
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Jul 9, 2007
I have few servers and when I check my crontab, I found the same line in all servers but at a different time.
43 0 * * * cd /usr/local/cpanel/whostmgr/docroot/cgi/fantastico/scripts/ ; /usr/local/cpanel/3rdparty/bin/php cron.php > /dev/null 2>&1
24 20 * * * cd /usr/local/cpanel/whostmgr/docroot/cgi/fantastico/scripts/ ; /usr/local/cpanel/3rdparty/bin/php cron.php > /dev/null 2>&1
32 19 * * * cd /usr/local/cpanel/whostmgr/docroot/cgi/fantastico/scripts/ ; /usr/local/cpanel/3rdparty/bin/php cron.php > /dev/null 2>&1
3 16 * * * cd /usr/local/cpanel/whostmgr/docroot/cgi/fantastico/scripts/ ; /usr/local/cpanel/3rdparty/bin/php cron.php > /dev/null 2>&1
Anyone can explain what are the purpose for these command, and should I make any changes to these to standardize them all (the time)
--------------------------------------
Secondly, one of my server doesn't set any automatic CPanel updates, so I set automatic updates for CPanel packages and Security packages. Is it suppose to add "/scripts/upcp" into my crontab? Most of them are also at different time.
--------------------------------------
I assume this command is to inform me whenever my user make a new domain add-on?
/usr/local/cpanel/whostmgr/docroot/cgi/cpaddons_report.pl --notify
--------------------------------------
Also can anyone tell me what are the purpose of these?
/usr/local/bandmin/bandmin
/usr/local/bandmin/ipaddrmap
/usr/local/cpanel/bin/dcpumon >/dev/null 2>&1
/scripts/exim_tidydb > /dev/null 2>&1
/usr/local/cpanel/whostmgr/bin/dnsqueue > /dev/null 2>&1
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Aug 7, 2007
Hello, I don't know how to use crontab to run PHP without using wget and lynx
1) The PHP script can run via SSH command line mode without problem
2) I can use crontab to run the PHP script with wget or lynx.
However,
3) The script will not run if i using below entry
1 2 * * * php /path/to/script/crontest.php
1 2 * * * php -q /path/to/script/crontest.php
1 2 * * * php -f /path/to/script/crontest.php
1 2 * * * /usr/local/bin/php - /path/to/script/crontest.php
1 2 * * * /usr/local/bin/php -f /path/to/script/crontest.php
1 2 * * * /usr/local/bin/php -q /path/to/script/crontest.php
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Apr 20, 2005
I set up a cron to run every minute & I'm running a PHP script by way of cron like
wget http://example.com/some_script.php
Now does each request of Cron is a seperate HTTP Request or what? Say my script takes more than 1 minute to execute completely but before its completed, its called again. So, will that effect the PHP script running because of previous HTTP Request or will it create a new HTTP Request & let the previous request finish its operation? Technically, it shouldn't block/affect the previous request, but I'm not sure!!
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Aug 19, 2008
I noticed on my new servers users doesnt have crontab permission.On my first server they have access.So what i need to do to enable users crontab permission automaticly on new servers?I have whm/cpanel there but it seems there is nothing about it there.
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Jan 13, 2008
I am trying to edit crontab using crontab -e, I seem to get to it okay but I am unable to edit anything in there, at the end of the file there are ~ in there, and I cant even delete them. Its like the file is locked.
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Mar 20, 2008
For some odd reason, when I run: chmod 4755 /usr/bin/crontab
in ssh, it still does not change it to 4755. It's like I don't have permission to change it, ans I'm logged in as root.
I've read some threads here on the forum and none really come to an issue where when they run that chmod 4755 /usr/bin/crontab it still doesn't chmod it.
So is there a way to check if it is chmodded to 4755 as I use CSF Exploerer to check if it is chmod'd to 4755, and it just stays at 755.
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May 28, 2008
A common error that cPanel show after a fresh install is the:
usr/bin/crontab permissions are wrong. Please set to 4755
An easy fix is the using the following commands.
Make sure you're using root.
chmod 4755 /usr/bin/crontab
ps -aux |grep cron
/scripts/restartsrv_crond
/etc/init.d/crond restart
ps -aux |grep cron
ls -l /usr/bin/crontab
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Apr 19, 2008
I am trying to setup a cronjob but cPanel, (Linux Centos 5), tells me that user/bin/crontab permissions are incorrect and need to be changed to 4755 - I try to change permissions in WinSCP [Properties] but it doesn't 'take'.
how to force a change of permissions with SSH (Putty)
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Jan 10, 2007
I have root ssh access to a server and we notice when doing a bash ./mysq-backup script to dump the data from the web site's databases into .sql and .tgz them that httpd goes down sometimes. That, and sometimes it seems that httpd goes down in other situations. All fine, we will figure out why. But ..
It would be nice to run a crontab to check every 15 minutes if httpd is running, if not, to restart it.
Right now I when I notice the site is down I log into the ssh as root and type: service httpd restart. If it is up it will then first stop it, and restart it. I can look at the screen and see it happen, so I feel pretty safe doing this. One of my concerns is that when I am not at the screen and it stays down .. I do not notice this and downtime increases. And we don't want to just crontab service httpd restart, so a bash script to check for the pid and restart if it down .. would be nice.
I thought this would work:
(chmod 755 httpdcheck)
Code:
delta:~ root# cat httpdcheck
#!/bin/bash
if [ ! "$(pidof httpd)" ]
then
echo "Could not find pid of httpd - restarting"
service httpd restart
else
echo "Found pid of httpd - NO need to restart"
fi
delta:~ root#
And I have this crontab entry:
Code:
delta:~ root# crontab -l
*/5 * * * * /root/httpdcheck | mail my@email
delta:~ root#
When testing, I did service httpd stop and waited 5 minutes and I received the email : could not find it, restarting. But when I go to the web site in browser it remains down. I have to login to ssh and do service httpd start manually to really load it.
Manually loading btw .. shows it works as bash script just fine, so I dont't know why it won't work when run from cron?
Code:
delta:~ root# ./httpdcheck
Could not find pid of httpd - restarting
Stopping httpd: [FAILED]
Starting httpd: [ OK ]
delta:~ root#
So .. when is it going wrong? Am I forgetting something?
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