scripts

get_computer_serial.sh

#!/bin/bash

# Get Machine Serial ID and set as env variable
MACHINE_SERIAL=$(sudo lshw |grep -m1 "serial:")
# Extracting value to the right of the colon
NODE_SERIAL=$(echo "$MACHINE_SERIAL" | awk -F': ' '{print $2}')

echo -e "\n" >> ~/.bashrc
echo -e "export NODE_SERIAL=$NODE_SERIAL" >> ~/.bashrc
# Print the extracted value
echo "NODE_SERIAL"
echo "$NODE_SERIAL"

next_port_num.sh

#!/bin/bash

# Check if -h option is provided
if [[ $1 == "-h" ]]; then
    echo "Usage: $0 [options]..."
    echo "Find the next available number for a file prefix in a specified location"
    echo "  location    The directory to check for files"
    echo "  prefix      The prefix of the files to check"
    echo " [optional]    "
    echo "  outputVar   The variable name to print with the index of the first non-existing file"
echo "                  If outputVar is not provided, only the index is printed"
    echo ""
    echo "Example:      ./next_port_num.sh /dev ttyACM"
    echo "          |-> 0"
    exit 0
fi

# Check if at least two arguments are provided
if [ $# -lt 2 ]; then
    echo "Usage: $0 location prefix [outputVar]" >&2
    echo "Example: ./next_port_num.sh /dev ttyACM" >&2
    exit 1
fi

# location: The directory to check for files
location="$1"
# prefix: The prefix of the files to check
prefix="$2"
# outputVar (optional): The variable name to print with the index of the first non-existing file
# If outputVar is not provided, only the index is printed
key="${3:-}"

needindex=1
index=0

while [ $needindex -eq 1 ]
do
        # Check if a file with the current index exists
        if [ ! -e $location/$prefix$index ]; then
                needindex=0
                # If outputVar is not provided, print only the index
                if [ -z "$key" ]; then
                    echo "$index"
                # If outputVar is provided, print outputVar=index
                else
                    echo "$key=$index"
                fi
        else
                # If a file with the current index exists, increment the index
                (( index++ ))
        fi
done

set_udev_rules.sh

#!/bin/bash

sudo cp ~/node/cfg/99-serialports-udev.rules /etc/udev/rules.d/
sudo service udev restart
sudo udevadm control --reload-rules && sudo service udev restart && sudo udevadm trigger
exit
$SHELL