Removing crontab Files
By default, crontab file protections are set up so that you cannot inadvertently
delete a crontab file by using the rm command. Instead, use the crontab -r
command to remove crontab files.
By default, the crontab -r command removes your own crontab file.
You do not have to change the directory to /var/spool/cron/crontabs (where crontab
files are located) to use this command.
How to Remove a crontab File
Before You Begin
Become superuser or assume an equivalent role to remove a crontab file
that belongs to root or another user. Roles contain authorizations and privileged commands.
For more information about roles, see Configuring RBAC (Task Map) in System Administration Guide: Security Services.
You do not need to become superuser or assume an equivalent role
to remove your own crontab file.
- Remove the crontab file.
$ crontab -r [username]
where username specifies the name of the user's account for which you want
to remove a crontab file. Removing crontab files for another user requires superuser privileges.
Caution - If you accidentally type the crontab command with no option, press the interrupt
character for your editor. This character allows you to quit without saving changes.
If you instead saved changes and exited the file, the existing crontab file
would be overwritten with an empty file.
- Verify that the crontab file has been removed.
# ls /var/spool/cron/crontabs
Example 8-5 Removing a
crontab File
The following example shows how user smith uses the crontab -r command to remove
his crontab file.
$ ls /var/spool/cron/crontabs
adm jones lp root smith sys uucp
$ crontab -r
$ ls /var/spool/cron/crontabs
adm jones lp root sys uucp
