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Full Discussion: Using read to prompt for editable user input in Bash 3
Top Forums Shell Programming and Scripting Using read to prompt for editable user input in Bash 3 Post 302736541 by woodson2 on Tuesday 27th of November 2012 12:33:47 PM
Old 11-27-2012
Using read to prompt for editable user input in Bash 3
Below is a simple script to prompt for user input while suggesting an editable default value at the prompt:


Code:
shortname=user1

read -e -i $shortname -p "Please enter the username you would like to add: " input
USERNAME="${input:-$shortname}"

Please enter the username you would like to add: user1

The above is the expected and working output in BASH 4

If I try this same code in BASH 3 it doesn't work because this version does not support the "-i" switch.

I need some help getting the same result in BASH 3.
Thanks
 

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LEARN ABOUT OPENSOLARIS

sasl_chalprompt_t

sasl_chalprompt_t(3SASL)		      Simple Authentication Security Layer Library Functions			  sasl_chalprompt_t(3SASL)

NAME

       sasl_chalprompt_t - prompt for input in response to a challenge

SYNOPSIS

       cc [ flag ... ] file ... -lsasl	 [ library ... ]
       #include <sasl/sasl.h>

       int sasl_chalprompt_t(void *context, int id, const char *challenge,
	    const char *prompt, const char *defresult, const char **result,
	    unsigned *len);

DESCRIPTION

       Use the sasl_chalprompt_t() callback interface to prompt for input in response to a server challenge.

PARAMETERS

       context	    The context from the callback record.

       id	    The callback id. id can have a value of SASL_CB_ECHOPROMPT or SASL_CB_NOECHOPROMPT

       challenge    The server's challenge.

       prompt	    A prompt for the user.

       defresult    The default result. The value of defresult can be NULL

       result	    The user's response. result is a null-terminated string.

       len	    The length of the user's response.

RETURN VALUES

       Like  other  SASL callback functions, sasl_chalprompt_t() returns an integer that corresponds to a SASL error code. See <sasl.h> for a com-
       plete list of SASL error codes.

ERRORS

       SASL_OK	  The call to sasl_chalprompt_t() was successful.

       See sasl_errors(3SASL) for information on SASL error codes.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWlibsasl		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       sasl_errors(3SASL), sasl_server_new(3SASL), attributes(5)

SunOS 5.11							    14 Oct 2003 					  sasl_chalprompt_t(3SASL)
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