Bash script: save stream from Serial Port (/dev/ttyUSB0) to file until a specific input (e.g. eof) appears

Question

I need a bash script to read the data stream from a Serial Port (RS232 to USB adapter - Port: /dev/ttyUSB0). The data should be stored line by line in a file until a specifi

Answer 1

Try awk(1):

awk `
/EOF/ {exit;} 
 {print;}` < /dev/ttyUSB0 > file.txt

This stops when it sees the line EOF and prints everything else to file.txt