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code to telnet the system and pass user name and password through shell script.. is it possible?
it can be done using expect..
is it possible through shell script
I dont thing we can pass the password and login through telnet ( even if this is possible, I guess its not a very good idea at all !) The only way we can do this is by using .netrc file in $HOME/.netrc.
The format of a .netrc file
@Libu: I don't have telnet (client/sserver) installed, so I could not try it out, but it works for sql/ftp including the user/password part (on the other hand it does not for ssh).
I do agree that telnet is unsave and shouldn't be used, but that was not the question the OP asked And even a .netrc file is unsave.
The .netrc solution you (Libu) gave is an elegant way of doing it. Although I don't know if it'll work for telnet, never tried. It does for ftp, that's for sure.
Distribution: Solaris 11.4, Oracle Linux, Mint, Debian/WSL
Posts: 9,789
Rep:
.netrc is for ftp only and doesn't apply to telnet (as far as I know).
There's a .telnetrc file, but not suitable to pass credentials
You should use rlogin/rsh instead, or better ssh which all allow non-interactive login.
Oops, yes the .netrc was for ftp and not telnet . I overlooked that. Sorry for wasting your time.
As for telnet, using expect is the only answer that I can think off ! Dont know of anyother way, you can automate logging to another machine through telnet.
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