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Top Forums Shell Programming and Scripting How to enter a password in the script automatically when prompted? Post 302332256 by sourabhsharma on Wednesday 8th of July 2009 01:32:08 PM
Old 07-08-2009
How to enter a password in the script automatically when prompted?

Hi Friends,

We need to create a script which will invoke a command with diffrent parameters.

The command invoked needs the password. So how automatically we can enter password in the script to the command?

example.:

#!/bin/ksh

for par in `cat parfile` do

# Here is the main command that needs password
add_space $par 3000MB
##password will be prompted...

done

in this case how we can make script that will automatically enter password?

Thanks in advance..
 

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VIPW(8) 						    BSD System Manager's Manual 						   VIPW(8)

NAME
vipw -- edit the password file SYNOPSIS
vipw DESCRIPTION
Vipw edits the password file after setting the appropriate locks, and does any necessary processing after the password file is unlocked. If the password file is already locked for editing by another user, vipw will ask you to try again later. The default editor for vipw is vi(1). Vipw performs a number of consistency checks on the password entries, and will not allow a password file with a ``mangled'' entry to be installed. If vipw rejects the new password file, the user is prompted to re-enter the edit session. Once the information has been verified, vipw uses pwd_mkdb(8) to update the user database. This is run in the background, and, at very large sites could take several minutes. Until this update is completed, the password file is unavailable for other updates and the new information is not available to programs. ENVIRONMENT
If the following environment variable exists it will be utilized by vipw: EDITOR The editor specified by the string EDITOR will be invoked instead of the default editor vi(1). SEE ALSO
chpass(1), passwd(1), passwd(5), pwd_mkdb(8) HISTORY
The vipw command appeared in 4.0BSD. 4th Berkeley Distribution June 6, 1993 4th Berkeley Distribution
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