Redtube

[alex1306]

root@vps:# youtube-dl -g http://www.redtube.com/1195761
http://vida.lsw.hd.redtubefiles.com/videos/0001195/_hd/1195761.mp4?st=3-9_znk23M2B16_nTtm9qw&e=1438609323
root@vps:#

this is not download url.

[dstftw]

It is:

wget "http://vida.lsw.hd.redtubefiles.com/videos/0001195/_hd/1195761.mp4?st=3-9_znk23M2B16_nTtm9qw&e=1438609323"
--2015-08-03 19:38:35--  http://vida.lsw.hd.redtubefiles.com/videos/0001195/_hd/1195761.mp4?st=3-9_znk23M2B16_nTtm9qw&e=1438609323
Resolving vida.lsw.hd.redtubefiles.com (vida.lsw.hd.redtubefiles.com)... 149.5.5.129, 149.5.5.130, 149.5.5.131
Connecting to vida.lsw.hd.redtubefiles.com (vida.lsw.hd.redtubefiles.com)|149.5.5.129|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 198401132 (189M) [video/mp4]
Saving to: '1195761.mp4@st=3-9_znk23M2B16_nTtm9qw&e=1438609323'

mp4@st=3-9_znk23M2B16_nTtm9qw&e=1438609   0%[                                                                                  ] 783.42K   410KB/s             ^

Most likely you did not enclose the URL in quotes.