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-rw-r--r--libraries/Bridge/examples/FileWriteScript/FileWriteScript.ino82
1 files changed, 0 insertions, 82 deletions
diff --git a/libraries/Bridge/examples/FileWriteScript/FileWriteScript.ino b/libraries/Bridge/examples/FileWriteScript/FileWriteScript.ino
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--- a/libraries/Bridge/examples/FileWriteScript/FileWriteScript.ino
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-/*
- Write to file using FileIO classes.
-
- This sketch demonstrate how to write file into the Yún filesystem.
- A shell script file is created in /tmp, and it is executed afterwards.
-
- created 7 June 2010
- by Cristian Maglie
-
- This example code is in the public domain.
-
- */
-
-#include <FileIO.h>
-
-void setup() {
- // Setup Bridge (needed every time we communicate with the Arduino Yún)
- Bridge.begin();
- // Initialize the Serial
- Serial.begin(9600);
-
- while(!Serial); // wait for Serial port to connect.
- Serial.println("File Write Script example\n\n");
-
- // Setup File IO
- FileSystem.begin();
-
- // Upload script used to gain network statistics
- uploadScript();
-}
-
-void loop() {
- // Run stats script every 5 secs.
- runScript();
- delay(5000);
-}
-
-// this function creates a file into the linux processor that contains a shell script
-// to check the network traffic of the WiFi interface
-void uploadScript() {
- // Write our shell script in /tmp
- // Using /tmp stores the script in RAM this way we can preserve
- // the limited amount of FLASH erase/write cycles
- File script = FileSystem.open("/tmp/wlan-stats.sh", FILE_WRITE);
- // Shell script header
- script.print("#!/bin/sh\n");
- // shell commands:
- // ifconfig: is a command line utility for controlling the network interfaces.
- // wlan0 is the interface we want to query
- // grep: search inside the output of the ifconfig command the "RX bytes" keyword
- // and extract the line that contains it
- script.print("ifconfig wlan0 | grep 'RX bytes'\n");
- script.close(); // close the file
-
- // Make the script executable
- Process chmod;
- chmod.begin("chmod"); // chmod: change mode
- chmod.addParameter("+x"); // x stays for executable
- chmod.addParameter("/tmp/wlan-stats.sh"); // path to the file to make it executable
- chmod.run();
-}
-
-
-// this function run the script and read the output data
-void runScript() {
- // Run the script and show results on the Serial
- Process myscript;
- myscript.begin("/tmp/wlan-stats.sh");
- myscript.run();
-
- String output = "";
-
- // read the output of the script
- while (myscript.available()) {
- output += (char)myscript.read();
- }
- // remove the blank spaces at the beginning and the ending of the string
- output.trim();
- Serial.println(output);
- Serial.flush();
-}
-