Questions tagged [cron]

cron is a task scheduler based on clock time that runs on Linux-based machines.

Filter by
Sorted by
Tagged with
0 votes
3 answers
226 views

OsX Crontab having no effect

I am dynamically appending cron tasks to the user crontab The tasks seem to be getting adde, crontab -e looks like: */10 * * * * /bin/sh /Users/john/Kiosk/app/content/update.sh @reboot /usr/bin/open ...
Mild Fuzz's user avatar
  • 743
0 votes
2 answers
383 views

Crontab - vim preferences

I use vim as my normal edito and so have my vimrc set up in a particular way. I quite often find myself editing crons with the command crontab -e When I do, I edit in vim, but without my normal ...
Joe's user avatar
  • 3,450
0 votes
2 answers
620 views

crontab not working properly

When I run a script manually using root it is working fine. when I execute the same script inside cron it is not running. I checked the cron is actually calling the script but the script is not ...
user1597811's user avatar
0 votes
1 answer
509 views

Running cronjob on specfic hours

How do i setup a cronjob to run every hour except from 11pm until 1am ? Because during that time, the system is doing maintenance. Cheers
user avatar
0 votes
1 answer
873 views

Convert cronjob to launchctl plist

I should convert this cronjob to a launchctl plist. Is this possible? 0 8-18 * * 1-5 /usr/bin/curl -s --data "par1=a&par2=b&press=OK" http://mydomain.com/file.php /dev/null
Lotus's user avatar
  • 1
0 votes
2 answers
3k views

What is the difference between "periodic" and "cron" on OS X?

I bought a book on OS X and it says that launchd now control the scheduling of cron tasks, it this true? Also it says that if I place commands in /etc/daily.local that they will execute after the ...
rubixibuc's user avatar
  • 2,062
0 votes
2 answers
3k views

How to setup a cronjob to auto download a file on Mac?

I'd like to setup a cron job to auto weekly download a file from my web hosting. I'm running OS X.6.8. I want to specify the folder that the file downloads into. How can this be done? I just want to ...
Rob's user avatar
  • 153
0 votes
3 answers
4k views

FTP from bash script running from cron not working

I have a script that is run by cron to create backup of a MySQL database and some files. After creating a tar ball and encrypting it with openSSH I have to put it on a remote ftp server. Following is ...
TheVillageIdiot's user avatar
0 votes
2 answers
18k views

How to stop all instances of cron?

I have a cron job that executes a rake task in rails. I noticed in the log that it was running the task 4 times everytime it was executed. The problem is that there are 4 instances of cron running. I ...
user avatar
0 votes
1 answer
118 views

Failing to run an infinitely running command at startup

I want to use gpu-screen-recorder to record replays. I installed it using flatpak and am using the following command to start the replay mode: flatpak run --command=gpu-screen-recorder com.dec05eba....
lenny's user avatar
  • 127
0 votes
2 answers
159 views

Cron job supposed to run on Tuesdays are running other days?

I have the following Cron rule: 0 8 1,2,3,4,5,6,7,14,15,16,17,18,19,20 * 2 /root/command.sh My objective is to run the /root/command.sh on Tuesday every two weeks. Crontab.guru returns the following: ...
Cyril N.'s user avatar
  • 416
0 votes
1 answer
67 views

Cron Disrupting VBoxManage Commands

I am on Ubuntu 20.04 desktop, running Virtualbox 6.1 and I use Webmin to run a very simple cron job to take daily snapshots of my virtualbox test server as follows: VBoxManage snapshot VminServer ...
mjones's user avatar
  • 307
0 votes
2 answers
857 views

Speedtest-CLI Cron Job Not Working

Cron job is setup as: */15 * * * * speedtest >> /home/pi/speedtest.log The speedtest script is: #!/bin/sh speedtest-cli --csv >> /home/pi/speedtest.log That uses Speedtest-CLI. The job ...
mlw4428's user avatar
  • 177
0 votes
2 answers
596 views

Crontab entry is not working

I want a set of files copied daily from a remote server to local machine at 5 am in the morning. The following crontab entry does not work: 0 5 * * * scp [email protected]:/tmp/bkp*tar.gz /home/...
asinix's user avatar
  • 105
0 votes
1 answer
659 views

Cron call to script giving errors, while executing script normally doesn't

I have been having problems with executing a script every second with Cron. This is in my cron file: * * * * * /var/webconfig/test.sh and this in my test.sh : #!/bin/bash cd /root/python-example ...
user9927059's user avatar
0 votes
1 answer
2k views

Renewing Certbot Let's Encrypt WILDCARD Certificates in Cron

I've been searching for a good solution to renew WILDCARD certificates from Let's Encrypt. It's easy to set up a wildcard certificate: Apache Debian 9 Stretch: sudo apt-get install certbot python-...
Maciek's user avatar
  • 121
0 votes
1 answer
82 views

How cron job works

I am new to linux. I have a cron job 'A' which should run every week i used crontab-e to set it let say 3rd march 15:00 i did this. Now today (6th march) i have to add another job 'B' which should ...
user3797053's user avatar
0 votes
1 answer
225 views

Install new crontab from within vim

I edit my crontab using vim (opened via crontab -e command). How can I update the effective cron table without leaving vim? For safety reasons crontab -e opens a temporary file (check path by ...
valid's user avatar
  • 283
0 votes
2 answers
217 views

Set up `cron` job and mailto on error, on Arch

I use postfix linked to an commercial smtp server for cron jobs to send their owners an email in case of error/warning. This is a one box Arch setup. postfix works. So does cronie. But although the ...
Cbhihe's user avatar
  • 251
0 votes
2 answers
7k views

rsync with cron job every minute issue

I am transferring files over the network using rsync in cron job that runs every 1 one minute, task is whenever new file come it has to start uploading on remote server: Since I am new so doing big ...
ALi's user avatar
  • 1
0 votes
2 answers
2k views

transmission-daemon changes config folder on reboot

I am not sure why but transmission seems to be changing my settings on reboot. The folder where the settings are being held is /etc/transmission-daemon. I run the command sudo service transmission-...
snickerpop's user avatar
0 votes
1 answer
2k views

How to run a periodic scheduled job without at or cron

Scenario: You have a user with no access to cron and need to schedule a job (say an rsync of a directory). The use of at is not an option as you don't have a fixed end date. While I bet there are ...
runlevel0's user avatar
  • 971
0 votes
1 answer
3k views

Can cron "cache" scripts it runs?

Caveats up front: 1. My *nix knowledge is very limited but growing. 2. This particular issue applies to SunOS 5.10 (I know) but I'd be interested in general answers. If a cron entry runs script ...
zkarj's user avatar
  • 103
0 votes
1 answer
45 views

What's wrong with my cron command?

I'm running cron from cpanel, i want to run one file and when it is finish the next one. this is my command /usr/bin/wget -O /dev/null -o /dev/null https://example.com/file.php > /dev/null 2>&...
eli99's user avatar
  • 1
0 votes
1 answer
3k views

Crontab script not saving result in file

I want to backup my database everyday and i have written a script my.cnf [client] host=locahost user=root password='pw' script.sh #!/bin/bash /bin/mysqldump --defaults-file=/home/wasifkhalil/my....
Wasif Khalil's user avatar
0 votes
3 answers
235 views

Cron job does not execute

I have following cron jobs: * * * * /usr/local/bin/email_redirect * * * * /usr/local/bin/email_redirect The python script is never ran and also nothing is written to syslog: Nov 27 19:09:41 ...
user avatar
0 votes
1 answer
240 views

Why is this simple cronjob not running and how do I check the relevant log files?

I have an 'R' script that I wish to run at 00:30 every day, that is, 12:30 AM everyday. The script itself is located in ~/Desktop/foldername/runme.r and which Rscript tells me that the exact path to ...
learnerX's user avatar
  • 394
0 votes
1 answer
11k views

How to set cron expression to run first Weekday (MON-FRI) and first Weekend (SAT-SUN) of the month?

I tried for the Weekend (SAT-SUN) cron expression: 0 0 18 ? 1/1 SAT#1,SUN#1 * but it didn't work.
Vitthal Muguli's user avatar
0 votes
1 answer
744 views

How do I catch and log all attempts to write to /dev/null?

Essentially I'm trying to catch output any scripts that are currently running and silencing their output. So the question is fairly simple, how do I log any attempts to write to /dev/null?
Ecksters's user avatar
  • 145
0 votes
2 answers
4k views

Cron job string settings to fire 4 times a day in between 5-10

* 5-10 * * * will fire the script between the said timings but how will I control the count? BTW the count and the timings can be anything, means it will be dynamic and not static. Just put up a ...
Arnab Ghosh's user avatar
0 votes
1 answer
59 views

Cronjob etiquette?

I am a student at a relatively small university. I wrote a script that sends me an email when a math newsletter comes out, so I can get a head-start on the problem of the week. I plan to run it as a ...
Joshua's user avatar
  • 103
0 votes
1 answer
2k views

Can't create incron job

I am trying to create incron job, but no success. When I type: incrontab -l I got: no table for vujke and when I type: incrontab -e I got: editor finished with error: No such file or directory ...
vujke's user avatar
  • 223
0 votes
1 answer
787 views

Cron jobs on IBM i 7.1

I just found out today that on an IBM i system I am able to use SSH to get to a Unix-like terminal (AIX/PASE) and would like to use this to schedule automated tasks using crontab. Does anyone know if ...
MaKR's user avatar
  • 216
0 votes
1 answer
1k views

"echo" prints the options in crontab

I'm running Rasbian 3.12.26+ on a Pi model B. Here is what my cron entry looks like: * * * * * sleep 11; { echo -en "\e[1;4;33m"; date; echo -en "\e[0m"; curl -k "http://sampleurl.com/update.php"; }...
Nikita240's user avatar
  • 117
0 votes
1 answer
812 views

How to delete all files inside public_ftp folder—and its sub folders—which are older than X days using cron job?

I want a way to run daily cron job on aserver that will delete all files only (not folders) which are older than X days from today's date, in the public_ftp folder and all its sub folders to a ...
Yogi Yang 007's user avatar
0 votes
2 answers
2k views

Script for CRON (FTP get files EVERY MINUTE)

I want to create a script that must run with a CRON every minute (Q: Is it wise to run CRON FTP/wget every minute?) compares local directory with remote directory (Q: do I use FTP or wget and how do ...
Wil's user avatar
  • 101
0 votes
2 answers
9k views

apache crontab not executing

I use cron to execute some php scripts (owncloud background tasks etc). My server runs nginx and PHP via php-fpm, which by default runs PHP processes under the apache user, the only user with write ...
jgillich's user avatar
  • 1,040
0 votes
3 answers
1k views

Automatically Create text file of folder contents

I have a set of directories that have files in them for use with LiquidSoap for use with IceCast2 Currently, every time I remove a file or add a file, I have to edit the txt file listing the mp3s to ...
Pixel Perfect's user avatar
0 votes
1 answer
359 views

How to execute a php file when a cron job is created

I want one of my PHP file to be executed when the cron job is executed. I want to do this for updating the database of every users. It is a Banking application project and I need to update every user'...
Mohammad Faisal's user avatar
0 votes
4 answers
2k views

How to run the shell script periodically without using Crontab?

I do not have previlage to use crontab -e to run my script. Is there other way to periodically run my script? Basically I need to run it once a week.
user196833's user avatar
0 votes
1 answer
2k views

Cronjob does not work

I tried to set up a cronjob on my server. Actually this command should execute a java programm every hour. But somehow this didn't worked. I googled and tried to set up a test-script that should run ...
user avatar
0 votes
1 answer
817 views

Ubuntu Precise cron.daily issue

I have a very strange problem. I've placed a script into /etc/cron.daily on my Ubuntu 12.04 server, gave it the appropriate permissions (0755), and assumed it would run correctly. I guess that was too ...
Scott Crooks's user avatar
0 votes
2 answers
519 views

cron: log output of job, email errors?

This is a ridiculous newbie question, sorry! I am running a (Python) script regularly using cron. I would like to log the output to a logfile, and I would like to be emailed with any errors that ...
Richard's user avatar
  • 995
0 votes
2 answers
508 views

How do can I update a Form using shell/bash script on Linux?

I am wondering is it possible to echo values like below described? The situation is - there are too many "doc" files named like "PLCI507_01234567.doc", and there is a Form in a text file named "form....
Himalay's user avatar
  • 401
0 votes
3 answers
191 views

Free app to run task of visiting a url

I need to run an .asp webpage on my site every 40 minutes. Does anyone recommend a free web-based app that I can enter in my url and it will visit the url every 30 - 60 mins? preferably one without ...
aron's user avatar
  • 99
0 votes
4 answers
1k views

cron jobs made in cPanel don't show up in PuTTy

Why don't cron jobs, that I have made in cPanel, show up when I use PuTTy and type crontab -l?
Steve Fischer's user avatar
0 votes
2 answers
4k views

How do I write a bash script to detect a mounted USB drive?

I'm triggering a script from cron. I want it to run rsync ONLY if a USB disk called "data_3" is mounted, otherwise not. How do I write a bash script to detect a mounted USB drive ? My current ...
user19496's user avatar
  • 1,490
0 votes
1 answer
5k views

Cron Job problem - No such file or directory error

I am on shared Linux CentOS hosting with multiple domains hosted on a single account. For one of the domains I need to run a cron job. But when I try to run that it gives me this error: /bin/sh: ...
Vinayak's user avatar
  • 611
0 votes
1 answer
60 views

Run Command after Laptop unfold

I want to run a bash file at a specific moment a day. (8:00 and 20:00). I've already managed to do this via crontab and also on startup if my computer was shut down at the time. My only problem is ...
Sebastian Illi's user avatar
0 votes
1 answer
214 views

cron.d script launching then dying

Many stack posts seem to suggest something like: * * * * * root /usr/bin/pgrep -f 'socat -T10 TCP4-LISTEN:22222,fork UDP4:localhost:22223' || (/usr/bin/socat -T10 TCP4-LISTEN:22222,fork UDP4:localhost:...
AntonOfTheWoods's user avatar

1
10 11
12
13 14
19