在Windows命令行中无法正确识别“ \\ n”

Question

I'm trying to issue a command that requires a line break due to a formatting restriction.

I need to commit a file to a CVS repository, but the repository has a restriction that requires a message to be included in the following format.

Change #: <number>
Description: <description>

The command used to commit the file is:

cvs commit -m "Change #: <number>\nDescription: <description>" <filename>

However when I issue the command it doesn't seem to be properly recognizing the line break and it fails saying that I gave it an invalid Change # and no Description.

How can I make it recognize the new line without it trying to issue two separate commands?

Answer 1

Try powershell in this format:

start-process -FilePath cvs.exe -ArgumentList "commit -m `"Change #:123 `nDescription:my description`""

Answer 2

I'm actually attempting to call this command from a Perl script and found an acceptable workaround. For some reason calling the command as a system command seems to fail, but if you call it using backticks it works fine.

# Fails
system 'cvs commit -m "Change #: <number>\nDescription: <description>" <filename>'

# Works
my $output = `cvs commit -m "Change #: <number>\nDescription: <description>" <filename>`

Whats funny is this difference in handling "\\n" between using system commands and backticks doesn't seem to be documented anywhere.