I have an IBM P520 AIX 5.3 server machine and trying to use crontab to periodically excute a script that contains a command belongs to my software (Fast/Tools SCADA software)
I added the following line after using crontab -e
I have two cases:
A) if "myscript" conatins standard SHELL commands like:
In this case, it runs as excepected.
B) if "myscript" contains my application command, it doesn't run at all!
please note that this command in "myscript" file is runnig correctly if it's being typed in the KSH directly.
Hi,
I have two shell scripts each executing a java process independently. These are two independent processes and I need to sequence them using another shell script. What I did was created another shell script and called these independent shell scripts in it.
It runs fine, however from time... (3 Replies)
Hi,
I am facing a issue in one of my script, Please help me on the same. Below I have the example.
Example:
I have two functions(host(),user()) in a single file named test1.ksh
File Name: test1.ksh
host () {
HOST=`hostname`
echo... (1 Reply)
Hi
i am a newbie to unix /Linux .Please help
I have a following script which says that there is a syntax error :(
My program is
echo Enter two Numbers
read a b
if
echo First is greater
else
echo Second is greater
fi (3 Replies)
hi
i am trying the below code for the following
|_
| |_
| |_ |_
| |_ |_ |_
| |_ |_ |_ |_
and for this code also
*
* *
* * *
* * * *
* * * * *
!/bin/bash
#i = "*" (2 Replies)
hi gurus.
I have a little script that runs java from a certain directory. This script runs fine when run manually but when I try to schedule it, it fails to find the script.
little_script.sh..
/<directory of java>/java -classpath... (3 Replies)
Hello
I'm trying to write simple script to delete archive logs for RMAN, unfortunately it's not working, I tried two way to do that:
#!/bin/ksh
echo "Start ....."
rman target=/ << EOF
RUN {
delete force noprompt archivelog until time 'sysdate-10';
}
EXIT;
EOF
echo "END ..."
echo... (6 Replies)
Hi
i have below code which i am running and the out i want should be in red color
echo "<html>" >> ERROR_FILE.html
echo "<Body>" >> ERROR_FILE.html
nawk 'BEGIN{print "<table border="1">"}
{print "<tr>";
print "<TD colspan="0" bgcolor="#DC143C">";
for(i=1;i<NF;i++)... (5 Replies)
can you please support me to understand what is wrong in this code, I am getting error as
sytnax error near unexpected token if
if then
code is
cat text.txt | /path/mapper.sh
data in file is
hi hi how how are you
while read line
do
for word in $line do
if then
wcount=`echo... (4 Replies)
Discussion started by: mirwasim
4 Replies
LEARN ABOUT SUSE
cron
CRON(8) System Manager's Manual CRON(8)NAME
cron - daemon to execute scheduled commands (ISC Cron V4.1)
SYNOPSIS
cron [-l load_avg] [-n]
DESCRIPTION
Cron should be started from /etc/rc or /etc/rc.local. It will return immediately, so you don't need to start it with '&'. The -n option
changes this default behavior causing it to run in the foreground. This can be useful when starting it out of init.
Cron searches /var/spool/cron for crontab files which are named after accounts in /etc/passwd; crontabs found are loaded into memory. Cron
also searches for /etc/crontab and the files in the /etc/cron.d directory, which are in a different format (see crontab(5)). Cron then
wakes up every minute, examining all stored crontabs, checking each command to see if it should be run in the current minute. When execut-
ing commands, any output is mailed to the owner of the crontab (or to the user named in the MAILTO environment variable in the crontab, if
such exists).
Additionally, cron checks each minute to see if its spool directory's modtime (or the modtime on /etc/crontab) has changed, and if it has,
cron will then examine the modtime on all crontabs and reload those which have changed. Thus cron need not be restarted whenever a crontab
file is modified. Note that the Crontab(1) command updates the modtime of the spool directory whenever it changes a crontab.
Daylight Saving Time and other time changes
Local time changes of less than three hours, such as those caused by the start or end of Daylight Saving Time, are handled specially. This
only applies to jobs that run at a specific time and jobs that are run with a granularity greater than one hour. Jobs that run more fre-
quently are scheduled normally.
If time has moved forward, those jobs that would have run in the interval that has been skipped will be run immediately. Conversely, if
time has moved backward, care is taken to avoid running jobs twice.
Time changes of more than 3 hours are considered to be corrections to the clock or timezone, and the new time is used immediately.
PAM Access Control
On SUSE LINUX systems, crond now supports access control with PAM - see pam(8). A PAM configuration file for crond is installed in
/etc/pam.d/crond . crond loads the PAM environment from the pam_env module, but these can be overriden by settings in the crontab file.
SIGNALS
On receipt of a SIGHUP, the cron daemon will close and reopen its log file. This is useful in scripts which rotate and age log files.
Naturally this is not relevant if cron was built to use syslog(3).
CAVEATS
In this version of cron, /etc/crontab must not be writable by any user other than root. No crontab files may be links, or linked to by any
other file. No crontab files may be executable, or be writable by any user other than their owner.
SEE ALSO crontab(1), crontab(5), pam(8)AUTHOR
Paul Vixie <vixie@isc.org>
4th Berkeley Distribution 10 January 1996" CRON(8)