bashrc.sh

export ANACONDA_HOME=/app/anaconda3
export JAVA_HOME=/app/java/jdk1.8.0_111
export PATH=$PATH:$ANACONDA_HOME/bin:$JAVA_HOME/bin

getPid(){
    local PROCESS_NAME=$1
    local PID=`ps -ef | grep ${PROCESS_NAME} | grep -v "grep" | awk '{print $2}'`
    echo $PID
}

statusProcess () {
    local PROCESS_NAME=$1
    local PID=$(getPid "$PROCESS_NAME")

    if [ -n "$PID" ]; then
        echo "[$PID]$PROCESS_NAME is running"
    else
        echo "$PROCESS_NAME is not running"
    fi
}

startProcess (){
    local PROCESS_HOME="$1"
    local PROCESS_NAME=$2
    local ARGS=$3

    local APP="$PROCESS_HOME/bin/$PROCESS_NAME"
    local LOG_HOME="/logs"
    local LOG_DIR="$LOG_HOME/$PROCESS_NAME"
    local LOG_FILE="$LOG_DIR/${PROCESS_NAME}.$(date +'%F').log"

    mkdir -p "$LOG_DIR"
    nohup $APP $ARGS > "$LOG_FILE" &
}

stopProcess(){
    local PROCESS_NAME=$1
    local PID=$(getPid "$PROCESS_NAME")

    if [ -n "$PID" ]; then
        echo "Killing $PID"
        kill -9 $PID
        echo "Killed"
    else
        echo "$PROCESS_NAME is not running"
    fi
}

start_jupyter_notebook(){
    local PROCESS_HOME="/app/anaconda3"
    local PROCESS_NAME="jupyter"
    local ARGS="notebook --ip=0.0.0.0"
    local NOTEBOOK_HOME="$HOME/notebooks"
    ( cd $NOTEBOOK_HOME && startProcess "$PROCESS_HOME" "$PROCESS_NAME" "$ARGS" ) &
}

alias startnb=start_jupyter_notebook
alias stopnb="stopProcess 'jupyter'"
alias statusnb="statusProcess 'jupyter'"

Linux.md

Commands

• Count lines in a file

wc -l <filename>

• copy public key to remote server

# Generate a key pair
ssh-keygen
# Copy key to remote server
ssh-copy-id id@server
password
# Test
ssh id@server

• add ssh fingerprint to known_hosts

ssh-keyscan host1 host2 >> ~/.ssh/known_hosts

main.sh

#!/bin/bash

SCRIPT_NAME="${0##*/}"
PROCESS_NAME="kibana"
PROCESS_HOME="/app/kibana-5.0.2-linux-x86_64"

LOG="$PROCESS_HOME/logs/$PROCESS_NAME.$(date +'%F').log"
APP="$PROCESS_HOME/bin/$PROCESS_NAME"

PID=`ps -ef | grep ${PROCESS_NAME} | grep -v "grep" | grep -v "$SCRIPT_NAME"| awk '{print $2}'`

usage(){
	echo "Usage: <[start], [status], [stop]>"
}

statusProcess(){
	if [ -n "$PID" ]; then 
		echo "[$PID]$PROCESS_NAME is running"
	else
		echo "$PROCESS_NAME is not running"
	fi 
}

startProcess(){
	nohup $APP > $LOG & 
	echo $!
}

stopProcess(){
	if [ -n "$PID" ]; then
		echo "Killing $PID"
		kill -9 $PID
		echo "Killed"
	else
		echo "$PROCESS_NAME is not running"
	fi
}

case "$1" in
	"start")
		startProcess
		;;
	"status")
		statusProcess
		;;
	"stop")
		stopProcess
		;;
	*)
		usage
		;;
esac