I would make a backup of the original crontab file for each user, then overwrite it with the new file.
To let cron(d) recognize the change, you can use maybe on Linux something like
If you happen to be on AIX, just kill the cron demon since it will be restartet be the respawn inittab entry.
No idea which Unix/Linux you are using.
Hello!
Does anyone know howto reload your kernal without rebooting the machine?
I´ve updated the "/etc/security/limits.conf " file and need to make this active without rebooting the machine. this is Red Hat Advanced Server 2.1AS
Regards...
dOzY (3 Replies)
Hi All,
I am user of partcular user of alinux machine. I want have some cronjobs to be done by machine. But i don't have crontab file for me. However i do have crontab installed as /usr/bin/crontab.
Could anyone please suggest how to creat a new cron file for a user? Any help will be highly... (3 Replies)
Hi there,
I got to find out that if I make changes in the prompt or command aliases from .bashrc, I could apply those changes immediately with the command:
source ~/.bashrc
There's another situation when I'd like to apply changes without loging out and in again: If I add someone to a group of... (2 Replies)
I am using Thunar on FreeBSD 7.1 and XFCE. I would like the thunar window to reload automatically when a file has been added or deleted. Currently I press Ctrl-R, but perhaps a setting that I dont know of will do this automatically? (0 Replies)
hi All, here is the problem: I'm not able to specify a PATH inside the user crontab file (/var/spool/cron/crontabs). The only syntax it accepts is the usual "* * * * * file" I'm not able to add PATH, or HOME, or MAILTO, or anything else. when I try to save the crontab, I have the error: ... (1 Reply)
Hi All,
Ref: "build crontab from a text file" in same forum. (I am not allowed to post URL's in the first post)
We are reorganizing our UNIX Crontab file by first making changes in a word pad text file. The intent is to then copy it back to Crontab. Will this work? Copy and Paste does not... (6 Replies)
Is there a easy-to-use graphical tool (or a simple and direct set of command line instructions) that will help me reload services on Red Hat Enterprise Linux ES version 3?
VSFTPD keeps dying on my business server - seemingly at random, with message "dead but subsys locked"
VSFTPD starts and... (2 Replies)
I just created a CNAME and i was told a zone needs to be reloaded after creating a CNAME. What is the command to reload a zone after the CNAME has been created?
Thanks in advance (1 Reply)
I'm basically looking for the ksh equivalent of bash's PROMPT_COMMAND="history -r", where simply redrawing the command prompt in a terminal will cause ksh to reload the history file.
At the risk of sounding incredibly lazy (in which case I would be guilty as charged), I've noticed that if I have... (13 Replies)
Discussion started by: DevuanFan
13 Replies
LEARN ABOUT OSX
crontab
CRONTAB(1) BSD General Commands Manual CRONTAB(1)NAME
crontab -- maintain crontab files for individual users (V3)
SYNOPSIS
crontab [-u user] file
crontab [-u user] { -l | -r | -e }
DESCRIPTION
The crontab utility is the program used to install, deinstall or list the tables used to drive the cron(8) daemon in Vixie Cron. Each user
can have their own crontab, and they are not intended to be edited directly.
(Darwin note: Although cron(8) and crontab(5) are officially supported under Darwin, their functionality has been absorbed into launchd(8),
which provides a more flexible way of automatically executing commands. See launchctl(1) for more information.)
If the /usr/lib/cron/cron.allow file exists, then you must be listed therein in order to be allowed to use this command. If the
/usr/lib/cron/cron.allow file does not exist but the /usr/lib/cron/cron.deny file does exist, then you must not be listed in the
/usr/lib/cron/cron.deny file in order to use this command. If neither of these files exists, then depending on site-dependent configuration
parameters, only the super user will be allowed to use this command, or all users will be able to use this command. The format of these
files is one username per line, with no leading or trailing whitespace. Lines of other formats will be ignored, and so can be used for com-
ments.
The first form of this command is used to install a new crontab from some named file or standard input if the pseudo-filename '-' is given.
The following options are available:
-u Specify the name of the user whose crontab is to be tweaked. If this option is not given, crontab examines ``your'' crontab, i.e.,
the crontab of the person executing the command. Note that su(1) can confuse crontab and that if you are running inside of su(1) you
should always use the -u option for safety's sake.
-l Display the current crontab on standard output.
-r Remove the current crontab.
-e Edit the current crontab using the editor specified by the VISUAL or EDITOR environment variables. The specified editor must edit
the file in place; any editor that unlinks the file and recreates it cannot be used. After you exit from the editor, the modified
crontab will be installed automatically.
FILES
/usr/lib/cron/cron.allow
/usr/lib/cron/cron.deny
DIAGNOSTICS
A fairly informative usage message appears if you run it with a bad command line.
SEE ALSO crontab(5), compat(5), cron(8), launchctl(1)STANDARDS
The crontab command conforms to IEEE Std 1003.2 (``POSIX.2''). The new command syntax differs from previous versions of Vixie Cron, as well
as from the classic SVR3 syntax.
AUTHORS
Paul Vixie <paul@vix.com>
BSD December 29, 1993 BSD