How to get logs of individual argument passed to shell script from a file - linux

Question

I have a shell script. In this script I am reading table names for a file and executing a command.
The script is working fine. I am able execute the command for all the tables in the file.
shell script
#!/bin/bash
[ $# -ne 1 ] && { echo "Usage : $0 input file "; exit 1; }
args_file=$1
TIMESTAMP=`date "+%Y-%m-%d"`
touch /home/$USER/logs/${TIMESTAMP}.success_log
touch /home/$USER/logs/${TIMESTAMP}.fail_log
success_logs=/home/$USER/logs/${TIMESTAMP}.success_log
failed_logs=/home/$USER/logs/${TIMESTAMP}.fail_log
#Function to get the status of the job creation
function log_status
{
status=$1
message=$2
if [ "$status" -ne 0 ]; then
echo "`date +\"%Y-%m-%d %H:%M:%S\"` [ERROR] $message [Status] $status : failed" | tee -a "${failed_logs}"
#echo "Please find the attached log file for more details"
#exit 1
else
echo "`date +\"%Y-%m-%d %H:%M:%S\"` [INFO] $message [Status] $status : success" | tee -a "${success_logs}"
fi
}
while read table ;do
spark-submit hive.py $table
done < ${args_file}
g_STATUS=$?
log_status $g_STATUS "Spark ${table}"
In this script I want to collect status logs and stdout logs. I want to collect the logs for each table in the file individually.
I want to know if the execution of spark-submit has been successful or failed for each table in the file. Say the status logs
How can I collect stdout files for each table individually and store them at a location in Linux.
What are the changes I need to do to achieve my results.

Answer 1

Make sure just to re-direct (stdout) of the logs generated for each of the table instance in your script to a folder under /var/log/ may be call it as myScriptLogs
mkdir -p /var/log/myScriptLogs || { echo "mkdir failed"; exit; }
while read -r table ;do
spark-submit hive.py "$table" > /var/log/myScriptLogs/"${table}_dump.log" 2>&1
done < "${args_file}"
The script will fail if you are not able to create a new directory using mkdir for some reason. So this creates a log for each table being processed under /var/log as <table_name>_dump.log which you can change it to however way you want.
Couple of best practices would be to use -r flag in read and double-quote shell variables.
Answer updated to redirect stderr also to the log file.