Linux Commands for Beginners 23 - Transferring Files with scp — Transcript

Full transcript

1. 0:00[Music]
2. 0:20hello once again everybody this is Jay
3. 0:23with another linux commands for
4. 0:25beginners video and in this video we're
5. 0:28going to take a look at transferring
6. 0:30files from one Linux machine to another
7. 0:33so you will need two linux instances for
8. 0:37this video it doesn't matter if they're
9. 0:39both virtual machines one physical one
10. 0:41virtual both cloud instances one cloud
11. 0:43instance um it really doesn't matter so
12. 0:46long as you have two Linux machines to
13. 0:49work from and then I'll show you
14. 0:50examples of copying files from one
15. 0:52server to the other we're going to use
16. 0:55the secure copy protocol or SCP to
17. 0:58achieve that in this video so let's go
18. 1:00ahead and get started
19. 1:02so here on my terminal I have a shell
20. 1:06open from my local workstation or my
21. 1:09local laptop you can see my customize
22. 1:11prompt with a cute little unicorn right
23. 1:13here and this is where my local files
24. 1:16are that I'm going to copy to another
25. 1:18instance it doesn't really matter what
26. 1:21you copy I'm going to show you a few
27. 1:23examples here but you can go ahead and
28. 1:26use whatever files you'd like so I
29. 1:28recently recorded a video on retropie
30. 1:30which is a very awesome distribution and
31. 1:33also application that you can run on
32. 1:36your Linux installation on a laptop or a
33. 1:38desktop to play some retro games and I
34. 1:41have all those files still on my laptop
35. 1:43so I'm going to use those as an example
36. 1:45again it doesn't really matter what you
37. 1:47use so if I list storage on my home
38. 1:48directory here I have all kinds of
39. 1:52folders here and the one I'm interested
40. 1:54in is this retropie folder I'm going to
41. 1:57go ahead and go in there and you can see
42. 2:01I have a roms directory inside there I
43. 2:07have a bunch of folders for various
44. 2:10emulated games that are supported by
45. 2:13retropie I'm going to use NES as an
46. 2:16example so if I go into the NES folder I
47. 2:21have a bunch of files here so I've made
48. 2:25my text really big here so some of these
49. 2:28names are going to be wrapped I'm sorry
50. 2:29about that but the name of these games
51. 2:32doesn't really matter be
52. 2:33because the type of content doesn't
53. 2:35really matter the whole point is to show
54. 2:37you guys how to transfer files it
55. 2:39doesn't really matter what files you use
56. 2:41those files are just what I have
57. 2:43available at the time so as an example
58. 2:45I'm going to copy this file and I'll
59. 2:48just do an LS against it
60. 2:50a game called Yoshi for the NES we see
61. 2:56that file is right here it's 257
62. 2:58kilobytes that's the file that I'm going
63. 3:01to transfer now over here in another tab
64. 3:03I have an Ubuntu instance on Linode
65. 3:06again it doesn't matter where it is you
66. 3:08just need to have access to it if I do
67. 3:10IP space a my IP address for this
68. 3:14instance is going to be this one right
69. 3:16here I'm going to need to know that to
70. 3:20copy a file or a folder over to this
71. 3:23instance now currently I have nothing so
72. 3:27if I go back here to my local instance
73. 3:29what I'm going to do is SCP secure copy
74. 3:34protocol and that comes from the SSH
75. 3:37package so if you have the SSH client
76. 3:39installed you should already have that
77. 3:41installed as well so you should already
78. 3:43have this command the file that I want
79. 3:45to copy again is Yoshi NES and I want to
80. 3:49copy it too I'll put in the username and
81. 3:50then at that's the IP address and I'll
82. 3:53put a colon slash home slash J so may
83. 3:57break this down for you SCP secure copy
84. 4:00protocol that's the tool we're going to
85. 4:03use to transfer the file the file we
86. 4:05want to transfer is this one Yoshi NES
87. 4:08the user we want to use for this
88. 4:12transfer is my user J at the IP address
89. 4:16of the server that's going to receive
90. 4:18the file colon and then the path on that
91. 4:21server where the file is going to
92. 4:23ultimately be copied to I'll press Enter
93. 4:27it's going to ask for my password which
94. 4:29I'll put in and it copied it over since
95. 4:34NES files are very small then of course
96. 4:37that's going to copy pretty quick so if
97. 4:39I go back over here to my server you can
98. 4:42see that I do have that file here Yoshi
99. 4:44dot and yes
100. 4:46that is present that was not there
101. 4:48before back here at the local session
102. 4:52I'm going to recall that command again
103. 4:55there it is and now here I'm going to
104. 4:57remove the file you see that it's not
105. 5:00there anymore I'm gonna copy it back but
106. 5:05what I'm going to do is I'm going to
107. 5:07shorten this down a little bit I'm going
108. 5:09to leave off my name at and just have
109. 5:11the IP address because if you are logged
110. 5:14in as the user you want to copy the file
111. 5:16with you don't need to include the
112. 5:18username you only need to include the
113. 5:20username if the user on the other end is
114. 5:22different than the user on your local
115. 5:24session so in this case I just need the
116. 5:27IP address and what I can also do is I
117. 5:29could take off the path so I'm not even
118. 5:31going to tell it where I want to copy
119. 5:33the file to so let's just see what
120. 5:34happens if I leave the path off of the
121. 5:36command put in the password again and it
122. 5:41copied it so let's see what happened my
123. 5:44working directory is slash home slash J
124. 5:47and there's the file so how did it know
125. 5:49to copy it to that directory to my home
126. 5:51directory well actually if you don't
127. 5:55give it a path that is going to assume
128. 5:58your home directory is where you want to
129. 6:01put it so you only actually need to
130. 6:03include a path if where you want to
131. 6:05transfer the file is in a different
132. 6:07location than your home directory now
133. 6:10I'm going to go back a directory here
134. 6:12and I want to copy the entire NES
135. 6:16directory over to that other server so
136. 6:18here's what I'm gonna do SCP I'm gonna
137. 6:21use - R for recursive because I want to
138. 6:24copy everything underneath a particular
139. 6:26folder and that's the folder I want to
140. 6:29copy the NES folder and again I want to
141. 6:32copy it to this IP address I'm not going
142. 6:34to put my user name here again because
143. 6:36I'm logged in as the same user and I'm
144. 6:38going to use a colon because you know
145. 6:40we'll just put it in the home directory
146. 6:42I'm not going to designate a place so
147. 6:43I'll press Enter
148. 6:44type the password and it's going to copy
149. 6:48everything over there and as I go I
150. 6:53could do I could go into the NES
151. 6:54directory which is now there
152. 6:57you can see that it's basically going to
153. 7:00have a bunch of files that's going to
154. 7:02change a bit as ILS as it copies
155. 7:04additional files it's not necessarily
156. 7:06going to go in alphabetical order but it
157. 7:09is copying everything over there as you
158. 7:11can see is copying my entire NES ROM
159. 7:14library over to that other server as you
160. 7:18can see here they're all present and
161. 7:21again that was the NES directory that I
162. 7:25copied over I'll go back here and what
163. 7:29I'm gonna do is go back to my home
164. 7:31directory so now I'm in my home
165. 7:34directory now one thing you should know
166. 7:36is that SCP also works in Reverse
167. 7:38believe it or not so I could do SCP I'll
168. 7:42type the IP address and I did copy the
169. 7:46Yoshi
170. 7:46NES file into my home directory on the
171. 7:49other server as you can see if I do LS
172. 7:52well actually it's still here you see
173. 7:54Yoshi NES and here what we're going to
174. 7:58do is try to copy the file from that
175. 8:00server over to my local workstation so
176. 8:03I'll put a period which is basically the
177. 8:06current working directory I just want to
178. 8:08copy it where I am right now and I'll
179. 8:10press Enter put in the password and it
180. 8:16actually copied the Yoshida NES file
181. 8:18from the remote end to the local end so
182. 8:21it actually works in Reverse as well so
183. 8:24that's basically it there's more you can
184. 8:26do with the SCP command there's other
185. 8:28options I can give you but I'll leave it
186. 8:30up to you to check the man page for
187. 8:32example you could designate a port for
188. 8:35the other side SSH runs on port 22 which
189. 8:38is assumed if you don't designate a pork
190. 8:41if the ssh server is running on a
191. 8:43different port on the server itself
192. 8:45you'll have to designate that i'll leave
193. 8:47it up to you to check the main page to
194. 8:48find out what option you would use to
195. 8:50achieve that but i basically showed you
196. 8:53how to copy a file and a folder from one
197. 8:56instance to another i hope that was
198. 8:58helpful for you guys I know it might be
199. 9:00strange to copy rom files but it's what
200. 9:03I had I just wanted to show you guys how
201. 9:05that process worked and in the next
202. 9:07video I'm going to show you basically
203. 9:09the same exact thing again
204. 9:11but we're going to use the arcing
205. 9:13command to achieve this which is another
206. 9:16method of copying files from one Linux
207. 9:19instance to another and I should have
208. 9:21that uploaded very soon so stay tuned
209. 9:24thanks for checking out my video I
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221. 9:52thanks again for watching and I'll see
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