concurrent_pf_launcher.sh

#!/bin/bash

function launchIteration {
    CMD=$1
    STOP_OUTPUT_PATTERN=$2
    OUTPUT_DIR=$3
    REMAINING_ITERATIONS=$4
    
    if [[ $REMAINING_ITERATIONS == "0" ]]; then
        echo "Completed launch chain"
        return 0
    fi

    OUT_FILE="$OUTPUT_DIR/iteration${REMAINING_ITERATIONS}.out"
    
    #eval $CMD > "$OUT_FILE" &
    ( eval $CMD > "$OUT_FILE" & )
    
    tail -f $OUT_FILE | while read l; do
        if [[ $l == *"$STOP_OUTPUT_PATTERN"*  ]]; then
            break
        fi
    done

    launchIteration "$CMD" "$STOP_OUTPUT_PATTERN" $OUTPUT_DIR $((REMAINING_ITERATIONS - 1))
}

TRIGGER_PATTERN=$1
N_PROCESSES=$2
LOG_DIR=$3
COMMAND=$4

echo "Concurrent test"
echo "    Stop output pattern: $TRIGGER_PATTERN"
echo "    No. concurrent executions: $N_PROCESSES"
echo "    Output log directory: $LOG_DIR"
echo "    Command: $COMMAND"

launchIteration "$COMMAND" "$TRIGGER_PATTERN" $LOG_DIR $N_PROCESSES