CopyFile copies the file content to a new path.

IsDirWriteable checks if dir is writable by writing and removing a file to dir.

LookupBinaryPath looks for a binary in order of passed lookup functions.

LookupInCurrentDirectory looks for the binary in the current directory Example: if this function is executed by /usr/bin/kuma-dp that was run in /home/kuma-dp, this function will lookup for binary 'x' in /home/kuma-dp/x.

LookupNextToCurrentExecutable looks for the binary next to the current binary Example: if this function is executed by /usr/bin/kuma-dp, this function will lookup for binary 'x' in /usr/bin/x.

ToValidUnixFilename sanitizes input strings and concatenates them into a valid Unix filename.