/usr/bin/xfs_rtcp: invalid option -- '-'
/usr/bin/xfs_rtcp: invalid option -- 'u'
/usr/bin/xfs_rtcp: invalid option -- 's'
/usr/bin/xfs_rtcp: invalid option -- 'a'
/usr/bin/xfs_rtcp: invalid option -- 'g'
/usr/bin/xfs_rtcp: option requires an argument -- 'e'
xfs_rtcp: must specify files to copy
xfs_rtcp [-e extsize] [-p] [-V] source target