Bash脚本?处理和图形化从csv文件中收集的数据

时间:2018-09-22 13:40:28

标签: bash csv bluetooth monitor

我正在尝试编写一个脚本,可以检测到我在家中的存在。到目前为止,我已经编写了一个脚本,该脚本以以下格式将hcitool lescan的数据输出到一个csv文件中:

    TIMESTAMP MAC_ADDRESS_1 MAC_ADDRESS_2 AD_INFINITUM
    2018-09-22.11:48:34 FF:FF:FF:FF:FF:FF FF:FF:FF:FF:FF:FF FF:FF:FF:FF:FF:FF

我试图弄清楚如何编写脚本将数据转换为可图形化格式-gnuplot是用于此的程序吗?我想这需要扑朔迷离吗?脚本导入csv文件并保留所有时间戳,然后为每个唯一的MAC地址向阵列添加新列,然后根据是否每行检测到Mac地址,用1或0填充条目。是否有内置命令可以对此提供帮助/帮助,或者我必须自己编写脚本?

我用来生成.csv的代码在这里。抱歉,它可能不是最漂亮的,因为我只是从bash脚本开始。

    cd /home/pi/projects/bluetooth_control;
    while true
    do
        echo 'reset hci0';
        sudo hciconfig hci0 down;
        sudo hciconfig hci0 up;
        echo 'timestamp';
        echo `date +%Y-%m-%d.%H:%M:%S` &> test1.csv;
        echo 'running scan';
        (sudo timeout 20 stdbuf -oL hcitool lescan | grep -Eo '(([A-Z]|[0-9]){2}:){5}([A-Z]|[0-9]){2}') &> test.csv;
        echo 'removing duplicates to test.csv';
        (sort test.csv | uniq) >> test1.csv;
        (paste -s test1.csv) >> data.csv;
        echo 'sleep for 60s';
        sleep 60;
    done

1 个答案:

答案 0 :(得分:0)

我有时间玩,为了完成答案,这里提供了我想出的解决方案。我不确定在Bash与Python中运行它的效率如何,但是在这里:

#!/bin/bash
cd /home/pi/projects/bluetooth_control;
while true
do
echo 'reset hci0';
sudo hciconfig hci0 down;
sudo hciconfig hci0 up;
echo 'timestamp';

# Create necessary temp files
echo "temp" &> test1.csv;
echo `date +%Y-%m-%d.%H:%M:%S` &> test2.csv;
echo 'running scan';

# Filter out only MAC addresses
(sudo timeout 20 stdbuf -oL hcitool lescan | grep -Eo '(([A-Z]|[0-9]){2}:){5}([A-Z]|[0-9]){2}') &> /home/pi/projects/bluetooth_control/test.csv;
echo 'removing duplicates to test.csv';

# Append each unique value to test1.csv
(sort test.csv | uniq) >> test1.csv;

# For each line in test1.csv, add text to mac_database if it doesn't exist 
while read line 
    do 
    grep -q -F $line mac_database || echo $line >> mac_database
done <test1.csv 

# For each line in mac_database, run an if loop
while read line 
    do 
    # If $line from mac_database exists in test1.csv, then
    if grep -Fxq "$line" test1.csv
        then
            echo '1' >> test2.csv
        else
            echo '0' >> test2.csv
    fi
done <mac_database

# Convert file to csv format, and append to data.csv
(paste -s test2.csv) >> data.csv;
echo 'sleep for 60s';
sleep 60;
done

希望这对将来可能选择这样做的人有所帮助。