Installing arbbot

[Caimocor]

I am trying to do this command. All the commands above I did sucessfully but this specific is not working htpasswd -b /var/www/conf/arbitrage.passwd username password
and it returns something like these:

Usage:
	htpasswd [-cimBdpsDv] [-C cost] passwordfile username
	htpasswd -b[cmBdpsDv] [-C cost] passwordfile username password

	htpasswd -n[imBdps] [-C cost] username
	htpasswd -nb[mBdps] [-C cost] username password

 -c  Create a new file.
 -n  Don't update file; display results on stdout.
 -b  Use the password from the command line rather than prompting for it.
 -i  Read password from stdin without verification (for script usage).
 -m  Force MD5 encryption of the password (default).
 -B  Force bcrypt encryption of the password (very secure).
 -C  Set the computing time used for the bcrypt algorithm
     (higher is more secure but slower, default: 5, valid: 4 to 31).
 -d  Force CRYPT encryption of the password (8 chars max, insecure).
 -s  Force SHA encryption of the password (insecure).

I was looking at the folder /var/www/ and there is no conf folder. What should I do?
I know that this is a very newbie question but I am little confused about this.

[Ryanklingert]

Did you ever figure out how to resolve this issue?

[sanitariu]

you should create folder conf like
mkdir /var/www/conf
then you should use the command: htpasswd -c /var/www/conf/arbitrage.passwd admin