I have a scenario where I need to write a shell script which has to download a file in a remote directory.
Eg: I logged into Server A and from there my script needs to login to Server B and using wget command it has to download a file.
Any suggestions on this?
Instead of doing an SSH into Server B and then doing a wget, I would suggest that you first download the file onto Server A and then scp it to Server B at the path you want.
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I am a web dev trying to do a little bit of Linux admin and could use help. My server needs to retrieve a file daily from a remote location over sftp, name and date/time stamp it, and push it to a directory for archive.
I have adapted a shell script that I had working when doing this over ftp, but sftp is causing me some issues.
I can successfully connect to the server in Filezilla when I have it set to the sftp protocol and choose the "Longon Type" as "Interactive" where it prompts for a password.
When I use the command line to call my script, it seems to resolve but hangs on the logging in step and provides the following error before retrying: "Error in server response, closing control connection. Retrying."
Here is the output:
https://i.imgur.com/dEXYRHk.png
This is the contents of my script where I've replaced any sensitive information with a placeholder in ALL CAPS.
#!/bin/bash
# Script Function:
# This bash script backups up the .csv everyday (dependent on cron job run) with a file name time stamp.
#[Changes Directory]
cd /THEDIRECTORY
wget --no-passive-ftp --output-document=completed`date +%Y-%m-%d`.csv --user=THEUSER --password='THEPASSWORD' ftp://sftp.THEDOMAIN.com:22 completed.csv
Anyone wanna help a newb to get some of them internet points?! :-)
For example i have two servers 1. Server A & 2. Server B
Server A has directory called /testdir with some files, I need a shell script which will run in Server B to download (FTP) the files from Server A /testdir. This download should happen automatically whenever a new file is added in Server A /testdir and old files should be neglected.
Consider using 'lftp' incremental transfer (mirror). As an alternative, 'wget' has similar mirroring functionality:
With wget:
wget -mirror -nH -o ftp://serverA/testdir
With lftp:
lftp
open ftp://serverA/
mirror /testdir .
I'm trying to automate the transfer of files from one remote server to other remoter server using shell script. I cannot install expect package. Could anyone help me out in doing this?
Thanks.
Setup a password less login between remote server so it won't ask for password in shell script and it will avoid passing password in shell script for security reason
Please refer the below link to setup password less ssh
http://www.tecmint.com/ssh-passwordless-login-using-ssh-keygen-in-5-easy-steps/
Then write a shell script to sftp the files
refer the SFTP command in the below link to do the needful
http://www.tecmint.com/sftp-command-examples/
I am very new in shell scripting , i want to download some files from linux remote server ,so how can i proceed for that.That remote server is ssh based .
first of all, ftp service is better choice to get files from remote server.
If only sshd service is available, then you may use ssh based command sftp or scp.
However, using sftp or scp commands will invoke an interactive password prompt, which is a problem in shell script --> You have to ask for help to expect command. see Automate scp file transfer using a shell script .
Besides expect, you may also set up trust relationship between two servers, then you may use scp without password. See http://www.linuxproblem.org/art_9.html
How to write a bash script using sftp command to download files?
I can use the following command to login to the remote machine, however I need to type in the password manually.
bash-3.2$ sftp -o "Port 22022" mike#s-edm-ssh.local.files.stack.com
mike#s-edm-ssh.local.files.stack.com's password:
Connected to s-edm-ssh.local.files.stack.com.
sftp>
How to do the sftp without the password prompt?
If I like to download aaa.txt file at /remote/mike/files to my local directory /local/mike/downloaded, how to build a script to do all of these work?
Since sftp runs over SSH, you can place your public key on the remote server.
If for some reason you can't place your key on the server, then you can write an Expect script to send your password when the prompt appears. See this example.