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Full Discussion: need to have a cronjob which will execute certain scripts every hr
Top Forums Shell Programming and Scripting need to have a cronjob which will execute certain scripts every hr Post 302294110 by aemunathan on Wednesday 4th of March 2009 12:53:39 PM
Old 03-04-2009
scripting to update oracle db periodically
Hi

My question needs two answers

how to write scripts to update a table in oracle db based on the result of the number of record counts

for example
i need to execute the following script every hour
Code:
awk '{sum[$4]++;}END{for(i in sum) {print i, sum[i]}}' filename

here everyhour the filename will be changing...like 200903042106 at 22:05 hrs and 200903042206 at 23:05hrs

(year month day hr min format)

the output will be varying for each execution
for e.g output for 200903042106 will be
Code:
RTMS 100
BSNLSERVICE1 324

and output for 200903042206 will be

Code:
RTMS 50
BSNLSERVICE1 264
CAE 25
PFS 98
DATING 49

I WILL BE HAVING A TABLE WITH ALL POSSIBLE COULMNS (WHICH MAY COME IN THE OUTPUT OF THE SCRIPT LIKE...RTMS)

the think is i should be able to read what is first value (RTMS or BSNLSERVICE1 or CAE...etc) and then insert in to the db, the count corresponding to that column leaving other columns with null values or blank...along with the timestamp in timestamp column of the time table which i can make use for querying purpose...like between dates or interval...etc


DB should reflect like the following:
Code:
TIMESTAMP | RTMS | BSNLSERVICE1 | CAE | PFS | DATING |
200903042106 | 100 | 324 | 0 | 0 | 0 |
200903042206 | 50 | 264 | 25 | 98 | 49 |

how it can be achieved?

then 2nd question
about creating the cronjob dynamically with varing file names as told already

with thanks
Aemunathan
Last edited by aemunathan; 03-04-2009 at 10:16 PM..
 

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LEARN ABOUT DEBIAN

service

service(8)						      System Manager's Manual							service(8)

NAME

       service - run a System V init script

SYNOPSIS

       service SCRIPT COMMAND [OPTIONS]

       service --status-all

       service --help | -h | --version

DESCRIPTION

       service	runs a System V init script in as predictable an environment as possible, removing most environment variables and with the current
       working directory set to /.

       The SCRIPT parameter specifies a System V init script, located in /etc/init.d/SCRIPT.  The  supported  values  of  COMMAND  depend  on  the
       invoked	script.  service passes COMMAND and OPTIONS to the init script unmodified.  All scripts should support at least the start and stop
       commands.  As a special case, if COMMAND is --full-restart, the script is run twice, first with the stop command, then with the start  com-
       mand.

       service --status-all runs all init scripts, in alphabetical order, with the status command.

EXIT CODES

       service calls the init script and returns the status returned by it.

FILES

       /etc/init.d
	      The directory containing System V init scripts.

ENVIRONMENT

       LANG, TERM
	      The only environment variables passed to the init scripts.

SEE ALSO

       /etc/init.d/skeleton,
       update-rc.d(8),
       init(8),
       invoke-rc.d(8).

								     Jan 2006								service(8)
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