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Hi thanks for the help here, but I will incorporate phyton to solve this as this also runs in my project in parallel.
Thanks Wireless I tried your code but didnt work, any idea why? jaclaz i need the active USB ports and I use: devcon.exe /Find =Ports >out.txt
Hi I ask for help in extracting a particular substring from a set of strings in text files, I will show an example to better explain: this is the txt file: " USB\VID_19D2&PID_1589&MI_03\7&110C67F3&0&0003 : ZTE UI AT Interface (COM3) USB\VID_19D2&PID_1589&MI_04\7&110C67F3&0&0004 : ZTE Voice Device (COM4) USB\VID_19D2&PID_1589&MI_05\7&110C67F3&0&0005 : ZTE Diagnostics Device (COM16) USB\VID_2341&PID_0043\95634303432351E031F1 : Arduino Uno (COM7) ACPI\PNP0401\5 : ECP Printer Port (LPT1) ACPI\PNP0501\0 : Communications Port (COM1) USB\VID_23C1&PID_D314\FFFFFFFFFFFF51BA21D4 : MightyBoard, S3G via Serial (COM8) 7 matching device(s) found. " the data i need from this text is the COM numbers for the USB ports only, and so, I would like to get an output text file which will contain the following text: "3,4,16,7,8" BTW, this is the output of DEVCON for mapping the USB ports. Your help will be much appreciated. Thanks Mosh