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Full Discussion: KSH: Test telnet and exit
Top Forums Shell Programming and Scripting KSH: Test telnet and exit Post 302310442 by calex on Friday 24th of April 2009 08:25:18 PM
Old 04-24-2009
KSH: Test telnet and exit

Hi,

I need to do a test Telnet in KSH and if the connection is good then disconnect the telnet session with out logging in and without exiting the shell script.

Example output of a good connection:

$telnet xxx.xx.xx.xxx xxxx
Trying xxx.xx.xx.xxx...
Connected to xxx.xx.xx.xxx.
Escape character is '^]'.

This is more to verify that the port is up than anything else. Due to the firewall rules on the destination side I cant just ping and get a valid result; so telnet is the only way of verifying they are up. Smilie

Any one have any ideas?


Thanks in advance,

Chris
 

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telnetrc(4)						     Kernel Interfaces Manual						       telnetrc(4)

NAME
telnetrc, .telnetrc - Specifies setup commands for a telnet session SYNOPSIS
$HOME/.telnetrc DESCRIPTION
The .telnetrc file contains the setup information for a telnet session. It is a hidden file in your home directory and must be readable by the user logging in. The file can consist of multiple entries for each remote host to which a user can connect. A remote host entry consists of multiple lines. The first line is the name of a remote host. The subsequent lines must begin with blank spaces, and contain telnet subcommands. These sub- commands are processed as though they were typed in manually. Lines beginning with a number sign (#) are comment lines. See telnet(1) for a complete list of telnet subcommands. To specify subcommands that apply to all systems, create an entry, using the word "DEFAULT" as the system name, and specify the telnet sub- commands in the subsequent lines. EXAMPLES
The following shows a sample .telnetrc file: # Beginning of telnetrc file # Default subcommands that apply to all systems DEFAULT environ undefine USER # First system entry system1 set echo toggle crlf # Second system entry system2 set echo mode line toggle crlf FILES
User-customized telnet startup values. RELATED INFORMATION
Commands: telnet(1). delim off telnetrc(4)
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