Shell Programming and Scripting

Hi to all ,
i wrote a small script and i add it to inittab to start the script during Startup. The script works fine , if i call it from the prompt but if it is call from inittab it is runnng too but it does not recognize system variable like USER , LOGNAME.

Since i running out of ideas i put inside the script source /.cshrc and source /etx/profile and source/etc/enviornment.
But this does not change anything the System variable still unkown

thanks a lot for your help

BTW
i running on AIX 4.3.2.0

Those variables are set during user login and thus are only available in a user session.
During startup, no login shell is executed and no user is logged in (although root might be the owner of the startup processes). So, referring to those variables doesn't make any sense.

Does your crontab provide the @reboot time/date specifier?

To help you, we'd have to know a bit more about the script...
Who do you think runs the script in /etc/inittab ?

Let's say it must be oracle, and as we all kmow, oracle will not run like that, it needs loads of env variables set. Is it the case? as of course e.g. LOGNAME cannot be found as the script is launched by ? at boot time, so how do you expect that specific variable to be initialised when no login occured?...

In most cases it the use of su that solves the problem like using

Code:

su -c user4thisapplication /opt/application/somebinary

In case when you need the same environment as in interactive mode ( login) you can use su - <user> at the condition you modified the .profile or whaterver profile you are using to bypass what is not used for batch mode : all that has to do with terminal settings etc... when in batch mode.

Hi RudiC,
Thanks a lot for your reply
Sorry that i do not have much knowledge with AIX , I was not aware that this variables not available at boot up
I will come back to you when I am back in the office to answer your question
Thanks for your help
Kind regards

---------- Post updated at 08:15 PM ---------- Previous update was at 08:06 PM ----------

Hi VBE,
Thanks for your reply
I did add the call to my script with mkittab and it works but the problems is with the variables
When I am back in office I will try your recommendation with su
I was expecting it will use root as user
when I login as user root the script works perfect
When back in the office I will post the script and the entry i made in inittab
Thanks for your support
With kind regards

Code:

te/httpdlite.conf >/dev/console 2>&1
 : httpd:2:once:/cae1/3rdparty/bin/apachectl start >/dev/null 2>&1
 imqss:2:once:/usr/IMNSearch/bin/imq_start >/dev/console 2>&1
 : adsm::once:/usr/tivoli/tsm/client/ba/bin/dsmc sched > /dev/null 2>&1 #Adsm sc\
 heduler
 sserver:2:wait:/etc/mfg/rc.sserver > /dev/null 2>&1
 tty17:2:off:/usr/sbin/getty /dev/tty17
 tty18:2:off:/usr/sbin/getty /dev/tty18
 ssa:2:once:/simstatus/simstatus

when ich check it it is running with user root acount

Code:

root 13170 1 0 Jan 06 - 8:42 csh /simstatus/simstatus

---------- Post updated at 10:25 PM ---------- Previous update was at 10:09 PM ----------

Hi RudiC,

yes my crontab provide the Option @reboot , but i guest it will the same Problem that the user don''f have his full enviornment because it is in Batch mode. At the Moment it hat the call for my script in inittab , but i will try to put it now in crontab.

Kind regards
Thomas

OK, so at least we have established you are using AIX. Care to tel us which version? Issue:

Code:

oslevel -s

to display it. Please post the output.

You should - under absolutely no circumstance - use csh at all. csh is bug-ridden to the extreme and is long deprecated, not to mention non-POSIX. Is there any factual reason why the script is in csh (other than "i didn't bother to learn any other)?

I hope this helps.

bakunin

Hi Bakunin
Thanks a lot for your reply
I did post the oslevel already at my first post it is AIX 4.3
Thanks for your nice recommendation not to use the c shell ,I don't matter which shelll I am using as long I got the variables when I am in batch mode
That is the only thing I am care about
With kind redgards
Nadielosabra