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I am trying to make an automatic installer which downloads file from ftp and installs it on system .

Host = "zzz " 
USER= "ss"
PASSWD = " xxXX"
FILE = " *.tar"
ftp $HOST << EOF
user $USER
passwd $PASSWD
---#to save in folder /tmp
cd /tmp
mget $(ls -t | head -1) --# to get last file
EOF.

Is this code is proper? And how will I know that the download has finished? Should I make any code changes for that? Because as soon as its finished downloading I have to install it using sudo dpkg. How to use this command in my existing code which I have written above?

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You're asking if this code is proper--have you tried running it yet, to see if/how it works? – Eliah Kagan Jan 7 at 7:12
error:File format not recognized:,,,,collect2: id returned 1 exit state – sooraj Jan 7 at 7:16
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do you have control over the ftp server? If you do, maybe it would be nice to always have a symbolic link that always pointing to the latest version (myapp-latest.deb), and then make your script download that. – elias Jan 8 at 18:56

1 Answer

up vote 1 down vote

For this kind of script, you would better use Expect than hand crafted code.

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Why isn't shell-script a fine choice in this case? I know expect is good for interactive sessions, but the interactive part is quite small in this case (password can probably be passed in the url), a shell script would be fine. – elias Jan 8 at 18:53
You're right, it may be a bit overkill. Also , there is wget, which can download from ftp and have login and pass on command line. AFAIK its available with default Unbuntu install. – Aurelien Jan 9 at 15:34
exactly, that's what I would try to do in a case like this. – elias Jan 9 at 16:12

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