Q: Simple way to delete one line from file using command prompt I am writing a simple batch script, and I need to delete one line from the file that gets downloaded by the script. What is the easiest way to do this using ONLY the command prompt? I have come across several various suggestions, but nothing to very simply delete one string that is constant across all files that are downloaded with the script.

A: This is a very platform dependant question. If you are using a *nix environment (Linux / Mac environment using bash / shell), you can accomplish this with sed
sed '/${regular_expression_that_matches_line_to_be_removed}/d' yourFile.txt > newFile.txt

This will generate a new file called newFile.txt that will contain the output. You can also do this in place (it modifies the file it's using as input), but I recommend against that because if you mess up your regex, you've lost your input.
If you're using a Windows environment (which I assume you are due to your batch-file tag), try looking at this Delete certain lines in a txt file via a batch file
