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Full Discussion: Perl script stopped working
Top Forums Shell Programming and Scripting Perl script stopped working Post 302904242 by Aia on Tuesday 3rd of June 2014 04:57:43 AM
Old 06-03-2014
Quote:
Originally Posted by belalr
Hi,

I have the following segment of a script which is supposed to prompt a user for password and then capture the password entered by the user.

The function is called in by another script and used to work without issue, the problem is that recently the script is not waiting for the user to input the password it and immediately the calling script is giving an error that null password is provided.

Can someone please help?
The reason must be that a "\n" or ENTER key is still in the stdin buffer by the time that it gets to $password = <STDIN>; which then it gets removed by chomp($password); returning null
 

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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 5.11 30 Jan 2004 script(1)
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