Entr not restarting server - go

I am trying to do something very simple: Restart my go server whenever any of the *.go files change. I did this:
find . -name "*.go" | entr -r -s 'sudo go run main.go'
The server starts all right first time (sudo does not require password). But
later on when any of the files in sub directories change, entr is not restarting the server.
What am I doing wrong?
Update:
I found that if I run server on 8080 then the above command works as expected. However if I use a SSL certificate and listen on 443 (hence the sudo) then the command does not work.

Related

Shell Script Issue Running Command Remotely using SSH

I have a deploy script in which I want to clear the cache of my CDN. When I am on the server and run my script everything is fine, however when I SSH in and run only that file (i.e. not actually getting into the server, cding into the directory and running it) it fails and states the my doctl command cannot be found. This seems to only be an issue with this program over ssh, running systemctl --help works fine.
Please note that I have installed Digital Ocean's doctl using sudo snap install doctl and it is there.
Here is the .sh file (minus comments):
#!/bin/sh
doctl compute cdn flush [MYID] --files [*] # static cache
So I am not sure what the issue is. Anybody have an idea?
Again, if I get into the server and run the file all works, but here is the SSH command I use that returns the error:
ssh root#123.45.678.999 "/deploy/clear_digital_ocean_cache.sh"
And here is the error.
/deploy/clear_digital_ocean_cache.sh: 10: doctl: not found
Well one solution was to change the command to be an absolute path inside my .sh file like so:
#!/bin/sh
/snap/bin/doctl compute cdn flush [MYID] --files [*] # static cache
I realized that I could run my user commands with ssh (like systemctl) so it was either change where doctl was located (i.e. in the user bin) or ensure that the command was called with an absolute path adding the /snap/bin/ in front of the command.

Copy file from remote to local using ssh

I'm trying to copy a file from a Ubuntu server to my mac but I keep receiving a No such file or directory error.
After I ssh in I'm using:
scp -p 8888 me#xx1.xx1.xx1.xx1:/var/www/html/00000001.jpg /Users/myusername/Documents/
But receive the error:
/Users/myusername/Documents/: No such file or directory
Is this error telling me that there is no such file or directory on my local machine? Any advice as to how to fix would be greatly appreciated.
Don't ssh in to your server first. Just execute that scp command from your local machine.
EDIT:
Also, the -p should be capitalized (according to the manpage on my machine), so:
scp -P 8888 your_username#remotehost.edu:/var/www/html/00000001.jpg /Users/myusername/Documents/
Yes, it's talking about your local machine. I'm guessing that you might have just typed something wrong. Try doing it like this instead:
scp -P 8888 me#xx1.xx1.xx1.xx1:/var/www/html/00000001.jpg ~/Documents/
Make sure you're typing this command at your Mac OS X Terminal prompt, not on the actual remote server. xx1.xx1.xx1.xx1 should be the remote Ubuntu machine ("pull" the file down to your machine, don't try to "push" it).
Also, although it's ssh -p, it's scp -P. For scp, -p just preserves modification times, and -P is the port.
Maybe you have multiple ssh connections open.
Try close all other connections and restart the scp command.

wget does not log into ftp server without sudo

When I do:
sudo wget ${FTPpath}* -nc
It gets the files without a problem, but entering a password is awkward for automation. Also just seems like bad practice.
When I leave out the sudo, it does not connect to the ftp server:
--2015-12-09 11:02:17-- ftp://dmanalytics:*password*#10.10.23.32/dmanalytics/download/*
=> ‘.listing’
Connecting to 197.80.203.9:3128... connected.
Logging in as dmanalytics ...
And then it just sits there.
I am working via a proxy, but I don't think its that. Above it says connected, but also I tried:
wget ${FTPpath}* -e use_proxy=yes -e http_proxy=197.80.203.9:3128 -nc
without any success. Any ideas what is causing my failure to log into the ftp server, and how I can fix my wget command so that I don't have to use sudo?

How do I copy a folder from remote to local using scp?

How do I copy a folder from remote to local host using scp?
I use ssh to log in to my server.
Then, I would like to copy the remote folder foo to local /home/user/Desktop.
How do I achieve this?
scp -r user#your.server.example.com:/path/to/foo /home/user/Desktop/
By not including the trailing '/' at the end of foo, you will copy the directory itself (including contents), rather than only the contents of the directory.
From man scp (See online manual)
-r Recursively copy entire directories
To use full power of scp you need to go through next steps:
Public key authorisation
Create SSH aliases
Then, for example if you have this ~/.ssh/config:
Host test
User testuser
HostName test-site.example
Port 22022
Host prod
User produser
HostName production-site.example
Port 22022
you'll save yourself from password entry and simplify scp syntax like this:
scp -r prod:/path/foo /home/user/Desktop # copy to local
scp -r prod:/path/foo test:/tmp # copy from remote prod to remote test
More over, you will be able to use remote path-completion:
scp test:/var/log/ # press tab twice
Display all 151 possibilities? (y or n)
For enabling remote bash-completion you need to have bash-shell on both <source> and <target> hosts, and properly working bash-completion. For more information see related questions:
How to enable autocompletion for remote paths when using scp?
SCP filename tab completion
To copy all from Local Location to Remote Location (Upload)
scp -r /path/from/local username#hostname:/path/to/remote
To copy all from Remote Location to Local Location (Download)
scp -r username#hostname:/path/from/remote /path/to/local
Custom Port where xxxx is custom port number
scp -r -P xxxx username#hostname:/path/from/remote /path/to/local
Copy on current directory from Remote to Local
scp -r username#hostname:/path/from/remote .
Help:
-r Recursively copy all directories and files
Always use full location from /, Get full location/path by pwd
scp will replace all existing files
hostname will be hostname or IP address
if custom port is needed (besides port 22) use -P PortNumber
. (dot) - it means current working directory, So download/copy from server and paste here only.
Note: Sometimes the custom port will not work due to the port not being allowed in the firewall, so make sure that custom port is allowed in the firewall for incoming and outgoing connection
What I always use is:
scp -r username#IP:/path/to/server/source/folder/ .
. (dot): it means current folder. so copy from server and paste here only.
IP: can be an IP address like 125.55.41.311 or it can be host like ns1.mysite.example.
Better to first compress catalog on remote server:
tar czfP backup.tar.gz /path/to/catalog
Secondly, download from remote:
scp user#your.server.example.com:/path/to/backup.tar.gz .
At the end, extract the files:
tar -xzvf backup.tar.gz
Typical scenario,
scp -r -P port username#ip:/path-to-folder .
explained with an sample,
scp -r -P 27000 abc#10.70.12.12:/tmp/hotel_dump .
where,
port = 27000
username = "abc" , remote server username
path-to-folder = tmp/hotel_dump
. = current local directory
And if you have one hell of a files to download from the remote location and if you don't much care about security, try changing the scp default encryption (Triple-DES) to something like 'blowfish'.
This will reduce file copying time drastically.
scp -c blowfish -r user#your.server.example.com:/path/to/foo /home/user/Desktop/
Go to Files on your unity toolbar
Press Ctrl + l and write here_goes_your_user_name#192.168.10.123
The 192.168.1.103 is the host that you want to connect.
The here one example
In case you run into "Too many authentication failures", specify the exact SSH key you have added to your severs ssh server:
scp -r -i /path/to/local/key user#remote.tld:/path/to/folder /your/local/target/dir
The question was how to copy a folder from remote to local with scp command.
$ scp -r userRemote#remoteIp:/path/remoteDir /path/localDir
But here is the better way for do it with sftp - SSH File Transfer Protocol (also Secure File Transfer Protocol, or SFTP) is a network protocol that provides file access, file transfer, and file management over any reliable data stream.(wikipedia).
$ sftp user_remote#remote_ip
sftp> cd /path/to/remoteDir
sftp> get -r remoteDir
Fetching /path/to/remoteDir to localDir 100% 398 0.4KB/s 00:00
For help about sftp command just type help or ?.
I don't know why but I was had to use local folder before source server directive . to make it work
scp -r . root#888.888.888.888:/usr/share/nginx/www/example.org/
For Windows OS, we used this command.
pscp -r -P 22 hostname#IP:/path/to/Downloads ./
The premise of the question is incorrect. The idea is, once logged into ssh, how to move files from the logged-in machine back to the client that is logged in. However, scp is not aware of nor can it use the ssh connection. It is making its own connections. So the simple solution is create a new terminal window on the local workstation, and run scp that transfers files from the remote server to local machine. E.g., scp -i key user#remote:/remote-dir/remote-file /local-dir/local-file

Moving a folder from Desktop to the server?

I have a folder in my Desktop. I want to copy it to my server in Terminal.
I tried this unsuccessfully
[~/bin]# cp -r /Users/Sam/Desktop/tig-0.14.1 ~/bin/
cp: cannot stat `/Users/Sam/Desktop/tig-0.14.1': No such file or directory
[edit]
I run the command in my server. The problem seems to be in the fact that "/Users/Sam/Desktop/tig-0.14.1" is a folder in my Mac, not in my server.
Perhaps, I cannot move the folder so simply to my server because my server do not know where my folder locates.
I have always moved the folder by GUI. Is the same possible also just in terminal?
From the server:
scp -r username#A.B.C.D:~/Desktop/tig-0.14.1/ ~/bin/
username is your shortname on your local mac.
A.B.C.D is the IP address of your local mac as seen by the server.
You will be prompted for your password.
Or if you wanted to push from your local client:
scp -r ~/Desktop/tig-0.14.1/ serveruser#W.X.Y.Z:~/bin/
serveruser is the user on the server whose ~/bin you want to copy into.
W.X.Y.Z is the IP address of the server as seen by your client.
You will be prompted to enter serveruser's password.
scp is part of ssh. See 'man scp' (from the terminal) for more info.
From your Mac (not the server):
# scp -r ~/Desktop/tig-0.14.1 myUsername#myServerName:~/bin
replace myUsername and myServerName appropriately.
cp is not the correct command. Try scp instead; it has similar use and you can use it like this: (see the manual for reference)
from linux client:
scp user1#host1://Users/Sam/Desktop/tig-0.14.1 ~/bin/
if you use a windows client you can use winscp to do this in "drag&drop" style
cp: cannot stat/Users/Sam/Desktop/tig-0.14.1': No such file or directory`
That's the problem, alright: the file you're trying to copy is not where you thought, or not named what you typed. As suggested in comments you can try using tab completion at the prompt to make sure you have everything correct:
# cp /Users/Sam/Desk<TAB>
# cp /Users/Sam/Desktop/tig<TAB>
# cp /Users/Sam/Desktop/tig-0.14.1.tar.gz
Note that tig-0.14.1.tar.gz is probably the actual file name, as found in the wild...

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