Run task/daemon in the background

run.sh

#!/bin/bash

# **** You may add `exec` ****

# eg.
# exec python manage.py runserver 0.0.0.0:9000

server_config.sh

#!/bin/bash

SCRIPT_ROOT="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
LOG_FILE=$SCRIPT_ROOT/'run_server.log'
PID_FILE=$SCRIPT_ROOT/'run_server.pid'
EXECUTABLE=$SCRIPT_ROOT/'run.sh'
EXE_ARGUMENTS=()

server_start.sh

#!/bin/bash
 
# kill first, also imported config
source 'server_stop.sh'
 
# and start in daemon
nohup "$EXECUTABLE" "${EXE_ARGUMENTS[@]}" > "$LOG_FILE" 2>&1 0<&- &
echo -n "" > "$PID_FILE" # clear the file

sleep 1;
allChildren=`ps x -o  "%p %r %c" | grep -v "COMMAND" | grep $$ | cut -d' ' -f 1`
for child in $allChildren; do
    name=`ps -o comm $child | head -2 | tail -1`
    if [ "$name" != "COMMAND" ]; then
        echo "PID: $child ($name)"
        echo "" >> "$PID_FILE"
        echo -n "$child" >> "$PID_FILE"
    fi
done;

server_stop.sh

#!/bin/bash
 
source 'server_config.sh'
 
set +e
pid1=(
    `cat $PID_FILE 2>&1`
)
# Additional PIDs
# pid1=(
#   $pid1
#   `cat RUNNING_PID 2>/dev/null`
# )
if [ "$?" -eq "0" ]; then
    for pid in "${pid1[@]}" ; do
        echo "Killing server ($pid)..."
        kill "$pid" > /dev/null 2>&1
    done;
fi
# or `pkill -TERM -P "$pid1"`
set -e
 
while ps -p "$pid1" > /dev/null 2>&1 ; do
    sleep 1;
done;