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Script - How to automatically start another process when the previous process ends?

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Top Forums Shell Programming and Scripting Script - How to automatically start another process when the previous process ends?
# 8  
Old 02-18-2009
Quote:
Originally Posted by quirkasaurus
it sounds like you're just over-thinking this...

Scripts do run sequentially.

Just write a script that does the first part . . .. then the second....
Just don't put anything into the background and it should work the way you want.
Do u mean if my script look like this (example):-
#!/bin/ksh
cp datafileA ../loader
cp datafileB ../loader

datafileA will load until finish (this usually take hours) before datafileB is loaded?
# 9  
Old 02-18-2009
well, by "load", you mean "copy", yes.
# 10  
Old 02-18-2009
hi i tried this but unfotunately datafileA and datafileB both goes to /load directory at the same time and get loaded into the sentry concurrently. this is not the correct behavior.
# 11  
Old 02-18-2009
i think i understand now.

the "sentry" is an independent program that is looking for files in that directory...
then loads them.

So. When that load is finished... we want to then copy over the next file for loading.

One possible solution is to watch the process list with ps -deaf and see if you
can identify the process that does the actual loading.

If you can, we're halfway there.

Else... would it be possible for the loading process to move the file out of
that directory once it is complete?

How much control does the loading process have?

Another possibility is to query the database itself... and copy the new file
over once X number of rows have loaded into the target table.
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