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Top Forums Shell Programming and Scripting strange expect script behavior, or am i misunderstanding expect scripting? Post 302266553 by v1k0d3n on Wednesday 10th of December 2008 01:48:37 PM
Old 12-10-2008
Question strange expect script behavior, or am i misunderstanding expect scripting?

Hello to all...this is my first post (so please go easy). Smilie

I feel pretty solid at expect scripting, but I'm running into an issue that I'm not able to wrap my head around. I wrote a script that is a little advanced for logging into a remote Linux machine and changing text in a file using sed. What I'm trying to do is set the stty echo and stty -echo command several times in the script to show or not show user input (for things like passwords etc). Instead, I get a buffer overflow whenever I try to unset the stty output (i first set it with stty -echo then later with stty echo). Has anyone else experienced this? Thanks for any help!
 

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script(1)							   User Commands							 script(1)

NAME
script - make record of a terminal session SYNOPSIS
script [-a] [filename] DESCRIPTION
The script utility makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the record is saved in the file typescript. See WARNINGS. The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends when the forked shell exits or when Control-d is typed. OPTIONS
The following option is supported: -a Appends the session record to filename, rather than overwriting it. NOTES
script places everything that appears on the screen in filename, including prompts. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ SEE ALSO
attributes(5) WARNINGS
script can pose a security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a privileged user, that is, root. Be sure that typescript is not a link before running script. SunOS 5.10 30 Jan 2004 script(1)
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