540 lines
28 KiB
Plaintext
540 lines
28 KiB
Plaintext
#Documentation de fcron Fcron: how and why? How to install fcron
|
|
Release notes: fcron 3.2.0
|
|
|
|
Copyright © 2000-2014 Thibault Godouet Fcron 3.2.0 Web page :
|
|
http://fcron.free.fr
|
|
_______________________________________________________________________
|
|
|
|
Documentation de fcron
|
|
Prev Chapter 1. Fcron: how and why? Next
|
|
_______________________________________________________________________
|
|
|
|
1.3. Changes
|
|
|
|
From version 3.0.0 to 3.0.1
|
|
* Better handling of the pipes in job.c: this should remove some
|
|
problems encountered on BSD systems.
|
|
* Bug fix: set the FDs correctly for select(). Should fix the problem
|
|
encountered on BSD systems.
|
|
* fcrontab: access user's directory with user's rights (necessary if
|
|
user/group fcron has not the right to read the directory).
|
|
* improvement in check_system_crontabs: more comments, added some
|
|
help messages, added command line options, cleaner, safer code.
|
|
* Improved English documentation: clarified some previously-unclear
|
|
points.
|
|
* Added French translation of the manual pages (thanks go to Alain
|
|
Portal)
|
|
|
|
From version 2.9.7 to 3.0.0
|
|
* Added a missing entry in changelog (changes from 2.9.6 to 2.9.7,
|
|
bug fix for NetBSD).
|
|
* Merged a patch for the check_system_crontabs script (Security
|
|
enhancements and cleanups).
|
|
|
|
From version 2.9.6 to 2.9.7
|
|
* Added time zone support (option timezone).
|
|
* Better support FreeBSD's users and groups modifications in fcron's
|
|
install scripts.
|
|
* Fixed a bug which used to make fcron send empty mails on very
|
|
recent systems.
|
|
* Fixed a bug which prevented fcrondyn to being used on NetBSD
|
|
(thanks go to Gabor Z. Papp).
|
|
* Added some casts in fileconf.c and save.c (to avoid some warnings
|
|
when compiling on HP-UX).
|
|
* Added a FAQ entry on how to emulate an anacron entry.
|
|
|
|
From version 2.9.5.1 to 2.9.6
|
|
* fixed the bug which made jobs run an hour too early after a
|
|
daylight saving time change.
|
|
Added detailed explanations about when a job will run when there is
|
|
a DST change in the FAQ.
|
|
* fixed fcrondyn's "Unknown command" bug on x86_64 (thanks go to
|
|
Georgi Georgiev).
|
|
* made fcrontab behave better when there is no space left in the
|
|
spool directory (used to truncate the fcrontab source file).
|
|
* Added a script, check_system_crontabs, to emulate Vixie cron's
|
|
behavior about /etc/crontab and /etc/cron.d. Please have a look at
|
|
the top of script/check_system_crontabs for more information.
|
|
* HP-UX support (needs more tests).
|
|
* bug fix: restore umask even if fcron runs unprivileged.
|
|
|
|
From version 2.9.5 to 2.9.5.1
|
|
* Fixed serious security vulnerabilities in fcronsighup, and improved
|
|
fcronsighup's overall security (drop privileges, better check user
|
|
inputs, etc).
|
|
* Fixed several typos in the doc.
|
|
* Updated debian package scripts (patch from debian maintainer).
|
|
|
|
From version 2.9.4 to 2.9.5
|
|
* Ported to HP-UX (thanks go to Scott Tinsley)
|
|
* Implemented fcrondyn commands run and runnow.
|
|
* Merged patch from Russell Coker for new SE Linux.
|
|
* Merged debian/ dir for debian package.
|
|
* Mail reports: put the same username in the To: field than the one
|
|
we give as recipient to the MTA. mailto can now also be a fully
|
|
qualified email address.
|
|
* changed a log message: a job which has ended without error is
|
|
reported has "completed" (which is more appropriated than
|
|
"terminated").
|
|
* Internal changes in log.c: code is more segmented, and code has
|
|
been added to be able to send log message to fcrondyn. Syslog
|
|
messages are now never longer than MAX_MSG (even with string from
|
|
strerror()).
|
|
* Fixed a bug which happened on Daylight Saving Time change on some
|
|
systems. It would make fcron run into a nasty infinite loop. Added
|
|
a sanity check in set_nextexe() to avoid such things.
|
|
* Fixed a crash bug: in 2.9.4, if a user run ls_exeq when a job is
|
|
running and has been removed from its fcrontab, it makes fcron
|
|
crash.
|
|
* Fixed a small bug: scripts were supposing perl was in /usr/bin.
|
|
* Fixed a bug which caused the pid of a child process to be
|
|
incorrectly read
|
|
* fixed memory leak: some strings returned by log.c:make_msg()
|
|
weren't always free()d.
|
|
* bug fix: fcrondyn commands renice and kill used not to handle
|
|
correctly the case where a job has several entries in exeq (exesev
|
|
jobs).
|
|
|
|
From version 2.9.3 to 2.9.4
|
|
* Merged support for SE Linux (patch from Russell Coker: thanks!)
|
|
* Work on the documentation (fixed spelling mistakes, tried to make
|
|
things clearer in fcrontab.5) (thanks Bill Wohler for your help!)
|
|
* Changed the subject line of mail reports: it now contains the
|
|
subject line, and is very similar to vixie cron's one.
|
|
* Added a sum-up at the end of ./configure.
|
|
* bug fix: "makewhatis" bug is fixed -- at last!
|
|
In fact, the problems encountered were due to an abusively ignored
|
|
signal SIGPIPE.
|
|
* bug fix: possible crash of fcron when trying to save a file if
|
|
there was no space left on device.
|
|
* bug fix: we don't consider '-' and '_' as word delimiters for a
|
|
username before the command anymore, since many programs have one
|
|
of these characters in their name.
|
|
* bug fix: option first was broken in fcron 2.9.3.
|
|
* fixed a little typo in an error message (could->couldn't)
|
|
* bug fix: do not ignore the last line of a fcrontab if there is no
|
|
\n before the end of file.
|
|
* fixed compile on SunOS 5.9 .
|
|
* Fcron now compiles on MacOS X.
|
|
* added some $srcdir to be able (again ;) ) to run configure from
|
|
another directory.
|
|
* Perf improvement: use buffer for i/o in run_job().
|
|
|
|
From version 2.9.2 to 2.9.3
|
|
* security issue: fcron used not to check the fcrontabs installed by
|
|
root for a standard user. This could make an inattentive superuser
|
|
install a user job runas(root) involontary.
|
|
* Perf improvement: we now use buffers to write something to disk
|
|
(became necessary due to the use of O_SYNC).
|
|
* To avoid loss of data in case of an hardware failure or a system
|
|
crash, fcron now saves files to a temporary name, and then renames
|
|
them to their definitive filename if everything's ok.
|
|
* The PID indicated by fcrondyn is now the pid of the job itself (up
|
|
to now, it was the one of the fcron process controlling the job).
|
|
* Implemented functions kill (send a signal to a running job) and
|
|
renice (change the priority of a running job) in fcrondyn.
|
|
* Added fcron's option -q to control the lavg and serial queue sizes.
|
|
* Added some timeouts in fcron for fcrondyn clients.
|
|
* Fcron is less restrictive concerning mailto addresses. In
|
|
particular, you can now use address like user@host.
|
|
* bug fix: in 2.9.2, fcrontab and fcron did not set correctly some
|
|
file modes.
|
|
* bug (introduced in 2.9.1): when a job stops with an non-zero exit
|
|
status or because it has been signaled, send a mail to its owner to
|
|
inform him (in 2.9.1 and 2.9.2, the mail was sent, but contained
|
|
nothing).
|
|
* code clean: use the same scheme for all struct types, removed some
|
|
code redundancy (save to disk management).
|
|
|
|
From version 2.9.1 to 2.9.2
|
|
* Added a system fcrontab. Root can access it with fcrontab by using
|
|
"-u systab".
|
|
* fcrondyn's ls_lavgq, ls_serialq and ls_exeq are now functional.
|
|
* mailto can now be set to a non-real user (for ex., an alias).
|
|
* fcron now calls shutdown() when a connection from fcrondyn is
|
|
closed. Another change in the code should prevent fcrondyn from not
|
|
returning to the prompt after a command has been run.
|
|
* use open() instead of fopen() to write files, for more security.
|
|
* fcrontab sets euid=uid before running the editor. This is required
|
|
by some programs (for instance, perl).
|
|
* bug fix: using DESTDIR with make did not work with the doc.
|
|
* Code clean: changed macros to make parameters clearly different
|
|
from vars.
|
|
|
|
From version 2.9.0 to 2.9.1
|
|
* fcron can now be run without root's privileges (see FAQ)
|
|
* added configure's option --with-boot-install .
|
|
* Minor change in the PAM code of fcron: may work better on some
|
|
systems.
|
|
* configure script now uses getpwnam() and getgrnam() instead of
|
|
reading directly /etc/passwd and /etc/group: this makes easier the
|
|
use of NIS, LDAP, etc.
|
|
* Bug fix: using some "cmd > /dev/stderr" (or stdout) in a script
|
|
used to make fcron send a bogus output mail. (rewrite of the code
|
|
managing the output of jobs)
|
|
* Bug fix: typo error prevented fcrontab to be compiled on some
|
|
systems.
|
|
* Minor bug fix about stdout option.
|
|
* Minor bug fix: giving fcrontab's option -c a relative path now
|
|
works correctly.
|
|
|
|
From version 2.1.0 to 2.9.0
|
|
* Added some new options to fcron: -y, -o, -l; and some fcrontab
|
|
options: stdout and volatile. All these permit to make fcron run in
|
|
foreground, execute all the pending jobs (mainly %-jobs), and
|
|
return. May be used, for instance, in a ppp-up script with a dialup
|
|
connection to update a software regularly.
|
|
* Added fcrondyn: this software allows users to dialog dyn-amically
|
|
with a running fcron daemon. Currently, it can list jobs of the
|
|
user running it (or all jobs for root). In the near future, it
|
|
should be able to run a job, change its next time and date of
|
|
execution, renice a running job, send a signal to a running job,
|
|
etc.
|
|
* All the documentation has been ported to SGML DocBook.
|
|
It results on a much better HTML version, which I recommand you
|
|
use. It is installed by default in fcron documentation directory
|
|
(for instance, on my system: /usr/share/doc/fcron-X.X.X/).
|
|
* Fcrontab.5 has been updated and improved. Some examples have been
|
|
added and some possible use of the different lines and options are
|
|
mentioned.
|
|
* Added option random, which allows an entry run periodically to be
|
|
run at a random time in its intervals of execution, instead of
|
|
being run as soon as possible.
|
|
* added some more checks in fileconf.c: allow user to use hours,
|
|
days, hourly, daily, etc options only with %-lines: it is ignored
|
|
if set for a &-line, which is quite confusing for users who may
|
|
type, for instance "&hourly" instead of "%hourly".
|
|
* bug fixed: you can now use arguments in the var EDITOR and VISUAL.
|
|
* bug fixed: fcron used to call sometimes a sleep(-1), which causes a
|
|
freeze (no crash, but a very very long sleep :) ) under system
|
|
using LIBC5, and maybe on some non-linux systems. It was not
|
|
causing any problem under GLIBC2. Thanks go to Nick Pasich.
|
|
|
|
From version 2.0.0 to 2.1.0
|
|
* PAM support for fcron and fcrontab (need testing! - help would be
|
|
appreciated).
|
|
* Fcron now send a mail if a job has noticenotrun set and could not
|
|
be run because of a queue full.
|
|
* Fcron now compiles on AIX (thank you, John A. Parker!), and a few
|
|
AIX-only bugs have been fixed, but it may remain some problems to
|
|
correct. Please try, and tell me!
|
|
* We now use constants ROOTUID and ROOTGID instead of some hard-coded
|
|
"0", and those constants are defined by the configure script (we
|
|
use the uid/gid of the name given with the option
|
|
"--with-root{name|group}"). It allows fcron to be run on system on
|
|
which root is not uid/gid 0/0.
|
|
* code cleaning.
|
|
* bug fixed: setting lavg to (0,0,0) used to make the line be added
|
|
in the lavg queue instead of the serial queue (but the lavgs were
|
|
ignored anyway).
|
|
* bug fixed: fcrontab's "-z" option was not ignoring previous user's
|
|
fcrontab version.
|
|
* bug fixed: on systems using putenv(), the var HOME, USER and SHELL
|
|
wasn't correctly assigned. On system supporting setenv() (which is
|
|
the default), the problem did not occur. (thanks go to Evan A.
|
|
Zacks).
|
|
|
|
From version 1.1.1 to 2.0.0
|
|
* using SIGUSR2 on fcron makes it print its current schedule on
|
|
syslog and toggles on/off the printing of debug info on syslog.
|
|
* fcron behavior on serial and lavg queues overflow has changed: in
|
|
previous versions, it used to run a job to make room to put a new
|
|
one. As it may conduct to a overwhelming of system resources, the
|
|
new job is now refused (and not run). An error message is also
|
|
logged through syslog.
|
|
* a mail is now sent if the job exited due to a signal, or if exit
|
|
status is non-zero. Read FAQ if you experience problems about that.
|
|
* added a FAQ.
|
|
* bug fixed: a midmonthly job executed after the 15th of the month
|
|
used to cause an endless loop. Thanks go to Guy Geens (thanks a
|
|
lot!).
|
|
* bug fixed: inserting a job in serial queue or running a job not
|
|
finished at startup was broken, unless the job was strict(no).
|
|
* bug fixed: some 1.1.1 changes used to make fcron impossible to
|
|
compile without sendmail (./configure's option
|
|
"--with-sendmail=no").
|
|
* bug fixed in sysV boot script: we know specify explicitly the path
|
|
to fcron.
|
|
* bug fixed: unresolved error used to occur on some system not
|
|
defining getopt_long().
|
|
|
|
From version 1.1.0 to 1.1.1
|
|
* security fix: sym link attack against fcrontab. Any user allowed to
|
|
use fcrontab used to be able to remove any fcrontab, and
|
|
potentially to truncate any file to zero-length (under certain
|
|
conditions, anyway).
|
|
* fcron and fcrontab now have a configuration file: fcron.conf. It
|
|
contains the default paths (spool dir, etc) and programs to use
|
|
(editor, shell, etc). Thanks to that file, several fcron processes
|
|
can run simultaneously if they have a different config (different
|
|
spool dir and pid file).
|
|
* added fcron's option "-m" to control the number of serial jobs
|
|
which can be executed simultaneously.
|
|
* added fcron's option "-n" to create a new spool dir.
|
|
* command line syntax of fcrontab has changed: you can know use
|
|
"user" (after the file name if any) instead of "-u user". It should
|
|
make fcrontab a little more intuitive.
|
|
* It is now possible to put a user name between the time/date fields
|
|
and the shell command of a fcrontab line (for Vixie cron format
|
|
compatibility): it is equivalent to runas(user).
|
|
* support of Solaris (and SysV).
|
|
* early support of OpenBSD.
|
|
* the installation scripts now use nsswitch.conf to detect if a user
|
|
or a group exists on the system. That way, naming services (NYS,
|
|
ldap, etc) are supported.
|
|
* the man page and doc is now installed by default in
|
|
$prefix/share/{man|doc} (instead of the previous $prefix/{man|doc})
|
|
($prefix is generally "/usr").
|
|
* bug corrected: fcron used not to add a serial_sev line to
|
|
serial/lavg queue if this line was running, saying "already in
|
|
serial queue".
|
|
* bug corrected: a "all" in fcron.allow with no fcron.deny file was
|
|
not considered as an allow rule.
|
|
|
|
From version 1.0.3 to 1.1.0
|
|
* The binary format of the binary fcrontabs has changed: there is now
|
|
no more need to reinstall the fcrontabs when upgrading fcron (but
|
|
you need to convert your fcrontabs to the new format once), and
|
|
this format should allow extensions without losing any information.
|
|
* better management of the errors in load/save fcrontabs functions.
|
|
* the doc is a clearer about @-lines.
|
|
* more security tests by fcrontab in the case it is suid root (but,
|
|
if possible, it should be suid fcron as it is far more secure).
|
|
* we now remove unwanted fcrontabs before loading them in memory:
|
|
well, it seems to be more logical like that :)) .
|
|
* bug fix: using options first with a &-line may have led to some
|
|
problems during the first read by fcron (mail send erroneously if
|
|
noticenotrun was used, bad set of the first execution's time and
|
|
date or immediate execution if bootrun was set: in fact, the line
|
|
was not recognized as a new line).
|
|
* bug fix: fcron used not to be able to be compiled from any
|
|
directory because of an absent -I. line option for the compiler
|
|
(the config.h file was not found).
|
|
|
|
From version 1.0.2 to 1.0.3
|
|
* fcron can now be configured and compiled from any directory (not
|
|
only from the source dir).
|
|
* bug fix: fcron now sets umask to the value it got at start before
|
|
running a job.
|
|
* bug corrected: a bug used to make the "truncated" system not to
|
|
work correctly, so a too long log message used to make fcron crash.
|
|
|
|
From version 1.0.1 to 1.0.2
|
|
* the user for whom a job is run is now logged.
|
|
* installation script is now more explicit about what it is going to
|
|
do.
|
|
* a boolean value can now also be set by "yes" and "no".
|
|
* bug corrected: bootrun option works again.
|
|
* bug corrected: shell variable containing underscore (_) used to be
|
|
rejected.
|
|
* bug corrected: installation script used not to check if user fcron
|
|
was in group fcron, in which case fcrontab doesn't work correctly
|
|
(it cannot, in that case, read the fcrontabs for non-privileged
|
|
users).
|
|
|
|
From version 1.0.0 to 1.0.1
|
|
* security fix: a user used to be able to read a file owned by root
|
|
if root runs a "fcrontab -u user -e".
|
|
|
|
From version 0.9.5 to 1.0.0
|
|
* added fcron's option "-s" to control the time between two saves of
|
|
the fcrontabs on disk.
|
|
* installation scripts now support better FreeBSD and sh.
|
|
* bug corrected: configure's options prefix and without-sendmail used
|
|
not to work.
|
|
* bug corrected: installing an fcrontab by "fcrontab file" wasn't
|
|
working correctly with a relative path (a path not beginning by a
|
|
"/").
|
|
|
|
From version 0.9.4 to 0.9.5
|
|
* security fix: the jobs of a fcrontab reinstalled by root used to be
|
|
run as root (until the next action of the owner on the fcrontab).
|
|
* added options strict and noticenotrun to tell fcron respectively if
|
|
a job should be removed from lavg queue if its execution interval
|
|
is exceeded, and if fcron should mail user to report the
|
|
non-execution of a job.
|
|
* added option nolog in order to log only errors (i.e. no message
|
|
like "job x started"). This can help to reduce the disk access and
|
|
save energy on a laptop, and make the log more readable if some
|
|
jobs are run very often.
|
|
* better handle of changes of the uids of users in /etc/passwd (no
|
|
more need to reinstall the fcrontabs).
|
|
* fcron.deny and fcron.allow files are now owned by root (they used
|
|
to be owned by user fcron).
|
|
* added ./configure's option --with-answer-all to be able to use
|
|
"make install" in a non-interactive way (can be useful for
|
|
automatic installers).
|
|
* added option --with-rootname and --with-rootgroup to ./configure
|
|
script for a better support of exotic systems.
|
|
* bug corrected in make install (script user-group): the script used
|
|
not to handle correctly the absence of both useradd and adduser
|
|
commands. This script now checks and tries to add a group fcron if
|
|
necessary.
|
|
|
|
From version 0.9.3 to 0.9.4
|
|
* security improvement: after the (horrible) root exploit found in
|
|
version 0.9.3, I decided to improve fcron/fcrontab's security. I've
|
|
included some strong (I hope :)) ) tests in fcron to ensure that
|
|
only root can run commands as superuser and use option runas. Even
|
|
an corrupted fcrontab should not be able to get root's privileges.
|
|
Pretty reassuring, isn't it?
|
|
* runfreq(1) lines have been replaced and extended by a new kind of
|
|
line: the lines beginning by a "%". It's now possible to tell fcron
|
|
to run a command once an hour, a week, etc, but only at some
|
|
specified moments. For instance: '%weekly * 4-7 echo "foo"' will
|
|
run the command 'echo "foo"' once a week between 4 and 7 in the
|
|
morning. (see "man 5 fcrontab" for more details).
|
|
* installation process improved: user is now consulted before
|
|
anything is done about installation in boot scripts, etc. The
|
|
default username of fcron is now ... fcron! (this is more secure
|
|
than daemon, which can be used by other programs).
|
|
* fcron now adds the host name to the addresses of the mails it
|
|
sends.
|
|
* fcrontab determines the identity of the running user by his uid (it
|
|
used to use the var USER). That way, fcrontab should act as crontab
|
|
under a "su".
|
|
* bug fixed: a tmp file was not removed after a "fcron -z"
|
|
* bug fixed in fcrontab: an expression of the form "start-stop" with
|
|
start > stop used to be incorrectly managed by fcron.
|
|
* bug fixed: when fcron and fcrontab were installed under a
|
|
non-privileged user rights, a normal user used to be not able to
|
|
use fcrontab.
|
|
* bug fixed: while fcrontab was asking user if he would like to
|
|
correct an erroneous line, the answer was not correctly handled.
|
|
|
|
From version 0.9.2.1 to 0.9.3
|
|
* installation scripts improved.
|
|
* added code to avoid infinite loops.
|
|
* bugs corrected in the functions to set the time and date of next
|
|
execution.
|
|
* bug corrected in the check for invalid lines.
|
|
|
|
From version 0.9.2 to 0.9.2.1
|
|
* minor bug corrected in Makefile
|
|
|
|
From version 0.9.1 to 0.9.2
|
|
* fcron now uses autoconf (the configure script), so it should be
|
|
easier to compile and install it and various systems.
|
|
* support of lavg options for all systems where getloadavg() is
|
|
defined (BSD unix, etc) and on Linux systems with a proc filesystem
|
|
(fcron can use /proc/loadavg).
|
|
* a job can now be executed several times simultaneously if option
|
|
exesev is set to 1.
|
|
* user can determine if a job can be put several times in the serial
|
|
queue simultaneously thanks to option serialonce.
|
|
* fcron does not wait anymore for the completion of all jobs of a
|
|
file before deleting it from memory.
|
|
* fcron handles correctly the jobs which are both serial and lavg.
|
|
* fcron now runs under a specific user and group (other than root)
|
|
for basic security reasons.
|
|
* bug corrected: fcron used to crash after a file was deleted from
|
|
memory in some conditions.
|
|
* corrected the bug which used to appear when a line was put several
|
|
times in the serial queue: in this case, fcron used not to count
|
|
correctly the number of running serial jobs.
|
|
* bug corrected: fcrontab used not to remove the temporary file it
|
|
creates if no modification where done to a file after an edition
|
|
using the -e option and on errors.
|
|
* bug corrected: fcrontab now defines correctly the remain value of a
|
|
line based on time and date beginning with a "&" but without
|
|
runfreq definition.
|
|
* bug corrected: fcron used to not install correctly a file edited if
|
|
a correction was made.
|
|
* bug corrected: reset option was not working correctly when set to a
|
|
single line.
|
|
|
|
From version 0.9.0 to 0.9.1
|
|
* support of the option mailto for each line (it used to be set for
|
|
the whole file).
|
|
* the value of the runas and mailto options are now stored internally
|
|
as a uid number: you must reinstall all the system's fcrontabs if
|
|
you change the uid of a user.
|
|
* Support of options "lavg*", in order to run a job under a specific
|
|
1, 5 and/or 15 minutes system load average value(s). When the job
|
|
should be run, it is placed in a specific queue and the load
|
|
average is checked regularly until the right value(s) is/are got.
|
|
The options "lavgor" and "lavgand" permits users to tell fcron if
|
|
they prefer to perform a logic OR or AND between the 1, 5 and 15
|
|
load average values. The option "until" can be use to force the
|
|
execution of a job after a determined timeout if the right
|
|
conditions to run the job are not filled.
|
|
* fcron now uses putenv() in place of setenv() (setenv() is not POSIX
|
|
compliant).
|
|
* a mailto option set to "" is now equivalent to "mail(false)".
|
|
* corrected the bug which used to make a bootrun and runfreq(1) job
|
|
executed twice when fcron's start occurs in an interval of
|
|
execution of the job.
|
|
* corrected the bug which used to make fcron crash after serial_array
|
|
is resized.
|
|
|
|
From version 0.8.3 to 0.9.0
|
|
* support of options in fcrontabs. Options can be specific to a line
|
|
or defined once for every line located after their definition (a
|
|
special option "reset" set all options to their default). Some
|
|
options also have too names: a long name and an abbreviation.
|
|
* jobs can now be run be run one after the other (option "serial"):
|
|
when the job should normally be run, it is added to a queue, which
|
|
entries are executed one by one. It permits to avoid the use of a
|
|
lot of system resources for a brief moment by the simultaneous
|
|
execution of several tasks.
|
|
* jobs can be run at system start up if they should have been run
|
|
during system down time (option "bootrun").
|
|
* root can run jobs as an another user (option "runas")
|
|
* user can set a nice value to a job, but only root can use a
|
|
negative value (a negative value will increase priority)
|
|
* user can choose to perform a logic AND or a logic OR between day of
|
|
month and day of week (option "dayor" and "dayand")
|
|
* user can choose to mail the output of jobs (option "mail") if any,
|
|
and can force fcron to send a mail even if output is zero-length
|
|
(option "forcemail").
|
|
* fixed the bug which used to make fcron run a job with a runfreq set
|
|
to 1 at a wrong time.
|
|
* fixed a bug which used to make fcrontab crash after several
|
|
corrections in edit mode.
|
|
|
|
From version 0.8.2 to 0.8.3
|
|
* (all this bugs appeared in version 0.8.2 :)
|
|
* fixed the bug which used to make fcron crash after a SIGHUP
|
|
* fixed the bug which used to prevent fcron from running some job
|
|
based on time and date
|
|
* fixed the bug which used to makes fcron run the jobs one second too
|
|
late
|
|
|
|
From version 0.8.1 to 0.8.2
|
|
* code has been optimized: The jobs are now queued in order of
|
|
execution. It permits avoid useless tests of all jobs every time
|
|
fcron wakes up, speeds up the determination of the time fcron
|
|
should sleep, speeds up the processing after the end of a job, etc.
|
|
I don't know why I haven't made it before :-) ...
|
|
* fcrontab has been improved: it is now more stable (many bugs which
|
|
used to make fcrontab crash in case of errors in the fcrontab has
|
|
been fixed). Plus, it now asks if you want to make corrections if
|
|
needed when editing.
|
|
|
|
From version 0.8.0 to 0.8.1
|
|
* ported to FreeBSD 4.0
|
|
|
|
From version 0.7.0 to 0.8.0
|
|
* corrected the bug which keep normal users from listing and editing
|
|
their current configuration file with fcrontab -l or -e.
|
|
* corrected the bugs which used to block fcron when a task was marked
|
|
for execution but fcron stopped before it has been launched, and
|
|
when fcron stopped after the end of a job but before the output has
|
|
been mailed.
|
|
* day of week 0 and 7 now both mean Sunday.
|
|
* the abbreviations of months and day of week are not any more case
|
|
dependent.
|
|
* months are now defined from 1 to 12 (and not from 0 to 11) (it was
|
|
a little bit illogical :-).
|
|
* you can now force spaces in strings if you place them in quotes.
|
|
* I discovered ispell :-) ...
|
|
* I've added a kind of signature in the formated configuration files
|
|
in order to keep the daemon from attempting to read an old
|
|
configuration file which doesn't use the same syntax.
|
|
* You can now install a file with fcrontab from standard input.
|
|
* others minor adds and bug corrections.
|
|
_______________________________________________________________________
|
|
|
|
Prev Home Next
|
|
How to install fcron Up Release notes: fcron 3.2.0
|