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Help in extracting fields from a file

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Top Forums Shell Programming and Scripting Help in extracting fields from a file
# 15  
Old 11-22-2011
Quote:
Originally Posted by smilesavvy
Please help me to understand with some examples of input files or anything??
here the input file ($1.txt)contents are like:

0030063224
0030063278
0030063234

The select command takes each record from the above file and run the query and redirects the output to output.txt file.

The query output is redirected to file:output.txt
its contents are like
203969 OrdAcctCycChg DAEMON1
203456 OrdAcctCycChg DAEMON1
# 16  
Old 11-22-2011
Now what you have to do??
# 17  
Old 11-22-2011
Quote:
Originally Posted by smilesavvy
Now what you have to do??
the code am using is :
Code:
sqlplus -s /nolog |&
print -p "connect $db_user/$db_pwd@$db_sid;"
print -p "SPOOL output.txt;"
while read var_ack_party_name
do
print -p "set pagesize 0 feedback off verify off heading off echo off linesize 100 \n"
print -p "select *  from bus_event where ack_party_name like 'MOVE_USAGE_DAEMON%' and event_data_text like '%"$var_ack_party_name"%';"
done <./$1.txt

nawk '{if($2 ~ "^[a-zA-Z]"){print $1,substr($3,length($3),1)}}'  ./output.txt | while read a b

the output.txt file contains the query output.
Before the query completion,the code is trying to access output.txt file and am getting cannot open ./output.txt file error.
Can we modify the code to wait for the query execution to get complete and output.txt file created here?
# 18  
Old 11-22-2011
use sleep command to stop executing the script for a while so that output.txtwill be available to access.

Code:
done <./$1.txt
sleep 180 && echo " Waiting for the query execution..."
nawk '{if($2 ~ "^[a-zA-Z]"){print $1,substr($3,length($3),1)}}'  ./output.txt | while read a b

# 19  
Old 11-22-2011
Quote:
Originally Posted by smilesavvy
use sleep command to stop executing the script for a while so that output.txtwill be available to access.

Code:
done <./$1.txt
sleep 180 && echo " Waiting for the query execution..."
nawk '{if($2 ~ "^[a-zA-Z]"){print $1,substr($3,length($3),1)}}'  ./output.txt | while read a b

I have used it but it is not working.
even it is not printing the message in echo.Smilie
# 20  
Old 11-22-2011
Hi Rajesh,
1.Please try to give one filename instead of ./$1.txt
2.Please find out how long the query execution process takes time so that we need to set the Sleep time command.
3.Suspend the script using sleep for a while then execute the nawk or awk.
# 21  
Old 11-22-2011
Quote:
Originally Posted by smilesavvy
Hi Rajesh,
1.Please try to give one filename instead of ./$1.txt
2.Please find out how long the query execution process takes time so that we need to set the Sleep time command.
3.Suspend the script using sleep for a while then execute the nawk or awk.
Hi,
I have tried the way you have suggested,
No change in situation.still not working.
The query is taking less than 5s in sql.
I have used sleep 10 in the code.
But it didnt worked with the changes.Smilie
Code:
while read var_ack_party_name
do
print -p "set pagesize 0 feedback off verify off heading off echo off linesize 100 \n"
print -p "select *  from bus_event where ack_party_name like 'MOVE_USAGE_DAEMON%' and event_data_text like '%"$var_ack_party_name"%';"
done <./20111011.71BC.LOG.txt
sleep 10
nawk '{if($2 ~ "^[a-zA-Z]"){print $1,substr($3,length($3),1)}}'  ./output.txt | while read a b
do
echo $a
echo $b 
MoveUsageDaemon -r $b -i $b -e $a -p 1
done

---------- Post updated at 06:07 AM ---------- Previous update was at 05:45 AM ----------

Quote:
Originally Posted by smilesavvy
Hi Rajesh,
1.Please try to give one filename instead of ./$1.txt
2.Please find out how long the query execution process takes time so that we need to set the Sleep time command.
3.Suspend the script using sleep for a while then execute the nawk or awk.
can we use wait here?is there any way to find the pid of the process which is executing the query?
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