bootstrap_user.sh

#!/bin/bash

username=odroid #vagrant

################################################################################
# add the needed cron-jobs http://stackoverflow.com/a/29396336
################################################################################

####################
# set PATH in cron
####################
cron_path="#Set path (cron doesn't use the users path)\nPATH=/home/${username}/bin:/home/${username}/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin"

# Check if cron job already in crontab
if crontab -l | grep -Fxq "${cron_path}"
then
    echo "Crontab already exists. Exiting..."
else
    echo "Adding job to crontab."
    # Write out current crontab into temp file
    crontab -l > mycron
    # Append new cron into cron file
    echo -e "${cron_path}" >> mycron
	echo "" >> mycron
    # Install new cron file
    crontab mycron
    # Remove temp file
    rm mycron
fi

####################
# check speed job
####################
cron1="#Fetch and store the internet speed\n*/3 1-11,13-23 * * * /usr/local/check_speed/check_internet_speed.sh >> /usr/local/check_speed/speedtest_values.csv"
# Escape all the asterisks so we can grep for it
cron1_escaped=$(echo "$cron1" | sed s/\*/\\\\*/g)

# Check if cron job already in crontab
if crontab -l | grep -Fxq "${cron1_escaped}"
  then
    echo "Crontab already exists. Exiting..."
    exit
  else
    echo "Adding job to crontab."
    # Write out current crontab into temp file
    crontab -l > mycron
    # Append new cron into cron file
    echo -e "${cron1}" >> mycron
	echo "" >> mycron
    # Install new cron file
    crontab mycron
    # Remove temp file
    rm mycron
fi

####################
# create report job
####################
cron2='#Create the report using the acquired speed data\n*/5 1-11,13-23 * * * /usr/local/check_speed/create_internet_speed_report.sh -i /usr/local/check_speed/monitor_internet_speed.Rmd -o /vagrant/check_speed/monitor_internet_speed.pdf -d /vagrant/check_speed/speedtest_values.csv'
# Escape all the asterisks so we can grep for it
cron2_escaped=$(echo "$cron2" | sed s/\*/\\\\*/g)

# Check if cron job already in crontab
if crontab -l | grep -Fxq "${cron2_escaped}"
  then
    echo "Crontab already exists. Exiting..."
    exit
  else
    echo "Adding job to crontab."
    # Write out current crontab into temp file
    crontab -l > mycron
    # Append new cron into cron file
    echo -e "${cron2}" >> mycron
	echo "" >> mycron
    # Install new cron file
    crontab mycron
    # Remove temp file
    rm mycron
fi