Linux: List / Display All Cron Jobs

Posted on in Categories , last updated May 3, 2017

How do I view currently setup or all running cron jobs under a Linux or Unix-like operating systems?

The cron service searches its spool area (usually /var/spool/cron/crontabs) for crontab files (which are named after user accounts); crontabs found are loaded into memory. cron also reads /etc/crontab, which is in a slightly different format. Additionally, cron reads the files in /etc/cron.d: it treats the files in /etc/cron.d as in the same way as the /etc/crontab file. The intended purpose of /etc/cron.d/ directory feature is to allow packages that require finer control of their scheduling than the /etc/cron.{daily,weekly,monthly} directories to add a crontab file to /etc/cron.d.

View Users Cronjob

Use the following syntax to view vivek users cronjob:

crontab -u userName -l
crontab -u vivek -l

View Root User Cronjob

Just type the following command:

crontab -l

View /etc/crontab

A cronjob can be also run from /etc/crontab file. To view it, enter:
# less /etc/crontab

View Daily Cronjob

Type the following commands:

cd /etc/cron.daily/
ls -l
cat filename

View Hourly Cronjobs

Type the following commands:

cd /etc/cron.hourly/
ls -l
cat filename

View Weekly Cronjobs

Type the following commands:

cd /etc/cron.weekly/
ls -l
cat filename

View Monthly Cronjobs

Type the following commands:

cd /etc/cron.monthly/
ls -l
cat filename

View Software (Package) Specific Cronjobs

Type the following commands

cd /etc/cron.d/
ls -l
cat filename
This entry is 5 of 15 in the Linux Cron Jobs Howto & Tutorial series. Keep reading the rest of the series:
  1. What is cron on a Linux or Unix-like systems?
  2. HowTo: Add Jobs To cron Under Linux or UNIX?
  3. Linux Verify crond Daemon And Cronjobs Are Running
  4. Linux Start Restart and Stop The Cron or Crond Service
  5. Linux: List / Display All Cron Jobs
  6. Linux / UNIX Crontab File Location
  7. Linux / UNIX: Change Crontab Email Settings ( MAILTO )
  8. Disable The Mail Alert By Crontab Command On a Linux or Unix-like Systems
  9. Linux: At What Time Cron Entries In cron.daily, cron.weekly, cron.monthly Run?
  10. Linux Execute Cron Job After System Reboot
  11. Linux / UNIX Setup and Run PHP Script As A Cron Job
  12. How to run crontab job every minute on a Linux or Unix-like system
  13. Run crontab (cron jobs) Every 10 Minutes
  14. Cron Job Script Execution on the Last Day of a Month
  15. Run crontab (cron jobs) every 1 minute

Posted by: Vivek Gite

The author is the creator of nixCraft and a seasoned sysadmin and a trainer for the Linux operating system/Unix shell scripting. He has worked with global clients and in various industries, including IT, education, defense and space research, and the nonprofit sector. Follow him on Twitter, Facebook, Google+.

10 comment

  1. Thank you for a very good summary. If a cron task is required to be executed on a schedule other than hourly, daily, weekly, or monthly, it can be added to the /etc/cron.d/ directory.

  2. I do this task manually
    ./getConfig ‘indirect’ ‘./(Command task)’ ‘./(Credential.csv’ ‘/usr/cronout/’ (standalone server)
    in command task there is a “cat /etc/ssh/sshd_config” but I saw blank sshd_config even though I can see details about sshd_config when I run those task manually. Can you help me?

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