platform-tools flash-all returns command not found, Please Help

[firenice03]

I've Navigated 2 the Location of platform-tools ie. /home/linux-lite/platform-tools Checked that adb iz Running, Confirmed that it Detects the Pixel 2 Phone, I've Copied All the GrapheneOS image Files to inside the platform-tools Directory & Clicked on flash-all.bat it Opens MousePad & when I Click on flash-all.sh Nutthing happens.

From the Linux-Lite Terminal, I cd /home/linux-lite/platform-tools/flash-all it Returns command not found same w/ .bat & .sh eXtensions. Also in All cases I there's a Maroon Red Flag w/ 127 inside I don't know what this means.

[member=37179]+Me[/member]

1st off the .bat will error as you have seen - .bat are Windows executable files.
The .sh - should work for but may not have the "x" permission (making it executable) - this can be seen if in the terminal ls -la 'the file' on the left you'll see wr-wr-wr- ... or similar (no X)

You can right click the file too - while having properties open - click the box for make executable.
OR in terminal (add path to file name as needed)

Code:

sudo chmod +x FILENAME