02-10-2009
That's probably, since cron jobs are intended for automatic maintenance actions, scripts started by cron do not get an TTY allocated, which makes dialog (or any other user interaction) impossible.
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
I have written a shell script and when i run it from shell prompt it runs fine but in the cron it only runs partially.
That means cron is working fine.
there is a command which i am using in the script which doesn't run at all.
That comman uses different user privileges like ptadmin
i am not... (4 Replies)
Discussion started by: ajnabi
4 Replies
2. UNIX for Dummies Questions & Answers
I am trying to schedule a new job but I get
# cron
# ! cron is already running Mon Jul 11 08:28:51 WAT 2005
! ******* CRON ABORTED ******** Mon Jul 11 08:28:51 WAT 2005
I tried the -l and -e switches but I get the same message
I am using HP-UX
Thanks. (3 Replies)
Discussion started by: GNMIKE
3 Replies
3. HP-UX
Hi,
I have a cron schedule like this
04,16,28,40,52 * * * * /nag/startProcessABatch (unix script)
i want to add new lines in this file (like Logging), i just copy this file into a /tmp folder (for backup copy), and i have edited this file (added few lines of code for logging).
... (1 Reply)
Discussion started by: nag_sundaram
1 Replies
4. Shell Programming and Scripting
i have a simple script that ftp a file out, manually running it works fine.
#!/bin/sh
ftp 152.226.69.48 << cmd
bin
get applicant_vw.txt
quit
cmd
but when I cron it,
14 9 * * * /opt/home/XXX/XXX/dailyjob.sh > /opt/home/XXX/XXX/cronlog.txt
seems that it was executed because i can... (2 Replies)
Discussion started by: beisaikong
2 Replies
5. UNIX for Advanced & Expert Users
Hello All,
I have installed a few crons on a machine. But for some reason the crons just don't run. I have checked the permissions on the files and also restarted the cron daemon. But it doesn't seem ti help. Can anyone suggest any other things I can do to get it running again?
Regards,... (6 Replies)
Discussion started by: garric
6 Replies
6. Shell Programming and Scripting
Hi,
example of Unix / Linux dialog utility is below.
I am going to use dialog as simple GUI for testing of a modem.
So I need to combine some dialog boxes into one.
I need to have input box, output box, info box, dialog box,
radiobox as in any standard program with graphical user... (2 Replies)
Discussion started by: jack2
2 Replies
7. Shell Programming and Scripting
Hello All,
I am running the below script.when i am running from shell or terminal its running fine but running using cron its not working.
################################
b36376 27 % cat make_nis_account_ankit.sh
#!/bin/ksh
... (2 Replies)
Discussion started by: ajaincv
2 Replies
8. Solaris
I need to run a script (from cron) that runs a second script.
What worries me is that second script, when run from bash, upon finishing doesn't return to bash unless I press the 'Enter' key.
I presume that's because last command in that script ends with &
Could that be a problem for cron?... (2 Replies)
Discussion started by: orange47
2 Replies
9. UNIX for Advanced & Expert Users
Hi all,
I have a solris 10 machine and i am facing some strange issues.
My sys user cron is not executing.
Can any one help on this issue?
root@antsdp1b>svcs -a|grep -i cron
online 1:08:55 svc:/system/cron:default
root@antsdp1b>
the cron process is also running. but whatever i... (5 Replies)
Discussion started by: vivek.goel.piet
5 Replies
10. Solaris
Hi ,
I have removed a cron for particular user , but cron job seems to be running even after the cron entry is removed. The purpose of the cron was to sendmail to user ( it uses mailx utility )
I have restarted cron and sendmail service still user is getting mail alerts from the cron job. And... (4 Replies)
Discussion started by: chidori
4 Replies
CRON(8) System Manager's Manual CRON(8)
NAME
cron - clock daemon
SYNOPSIS
auth/cron [-c]
DESCRIPTION
Cron executes commands at specified dates and times according to instructions in the files /cron/user/cron. It runs only on an authentica-
tion server. Option -c causes cron to create /cron/user and /cron/user/cron for the current user; it can be run from any Plan 9 machine.
Blank lines and lines beginning with # in these files are ignored. Entries are lines with fields
minute hour day month weekday host command
Command is a string, which may contain spaces, that is passed to an rc(1) running on host for execution. The first five fields are integer
patterns for
minute 0-59
hour 0-23
day of month 1-31
month of year 1-12
day of week 0-6; 0=Sunday
The syntax for these patterns is
time : '*'
| range
range : number
| number '-' number
| range ',' range
Each number must be in the appropriate range. Hyphens specify inclusive ranges of valid times; commas specify lists of valid time ranges.
To run the job, cron calls host and authenticates remote execution, equivalent to running rx host command (see con(1)). The user's profile
is run with $service set to rx.
Cron is not a reliable service. It skips commands if it cannot reach host within two minutes, or if the cron daemon is not running at the
appropriate time.
EXAMPLES
Here is the job that mails system news.
% cat /cron/upas/cron
# send system news
15 8-17, 21 *** helix /mail/lib/mailnews
%
SOURCE
/sys/src/cmd/auth/cron.c
SEE ALSO
con(1), rc(1)
CRON(8)