how to read all line except the first line?

Question

is there a way to read only 2nd up to the last line except for the first line?

here's my sample code

File myFile;
char cr;
void setup() {
 // Open serial communications and wait for port to open:
 Serial.begin(9600);
 while (!Serial) {
 ; // wait for serial port to connect. Needed for native USB port only
 }
 Serial.print("Initializing SD card...");
 if (!SD.begin(4)) {
 Serial.println("initialization failed!");
 while (1);
 }
 Serial.println("initialization done.");
 // re-open the file for reading:
 myFile = SD.open("test.txt");
 if (myFile) {
 Serial.println("test.txt:");
 // read from the file until there's nothing else in it:
 while (myFile.available()) {
 Serial.write(myFile.read());
 }
 // close the file:
 myFile.close();
 } else {
 // if the file didn't open, print an error:
 Serial.println("error opening test.txt");
 }
}
void loop() {
 // nothing happens after setup
}

Answer 1

skip first line

bool firstLine = true;
while (myFile.available()) {
 int c = myFile.read();
 if (firstLine) {
 if (c == '\n') {
 firstLine = false;
 }
 } else {
 Serial.write(c);
 }
}

Answer 2

Why don't you do reads for the first line, ignore them and start the while thus:

while (myFile.available() && (myFile.read() != '\n') {}; // Empty while body
while (myFile.available()) {
 Serial.write(myFile.read());
}

• awesome23: @michael how do i block/skip the first line and read the 2nd line up to the last line?
• Michel Keijzers: By reading the first line and don't use it as in the code above.
• Juraj: myFile.read(); reads only one byte/char
• Michel Keijzers: @Juraj Thanks and improved my answer accordingly
• Juraj: and what for is the endOfLineFound test in second while?