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Top Forums Shell Programming and Scripting sudo inside a here document not working Post 302471372 by mnanavati on Friday 12th of November 2010 03:18:51 PM
Old 11-12-2010
sudo inside a here document not working

Have a sudo statement inside of a here document. It prompts me for a password, but doesnt wait for me to enter my password. Is there a way I can use the command without sudo or anyway that I can enter the password correctly?

Eg :
Code:
while read  remotehost
do
  ssh -t $2@$remotehost  <<REMOTE

   ls /path/to/file/ | while read line
     do
              sudo  vserver \$line enter
              echo "\$line Hello world"
      done

REMOTE
done < "$remotehostlist"

This asks for password for the following line sudo vserver $line enter. But it doesnt wait for me to enter password. Also if I type something it appears in cleartext.

Please help!!
 

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yppasswd(1yp)															     yppasswd(1yp)

Name
       yppasswd - change password in yellow pages (YP) service.

Syntax
       yppasswd [ name ]

Description
       The  command lets you change your password in the yellow pages (YP) map, a network data base service.  Only you or the superuser can change
       your YP password.

       When you enter the command, the program prompts you for the old password and then for the new password. Note that  the  passwords  are  not
       displayed on the screen.

       Next,  the  program asks you for the new password again, to verify that you have typed it correctly.  If you do not type the passwords cor-
       rectly, you will receive an error message after you enter the new password.

       Your new YP password must meet one of the following requirements:

	  o It must be a combination of at least six alphanumeric characters, or

	  o It must be a minimum of four characters, with at least one being non-alphanumeric, such as a control sequence.
       The command does not change the YP password.  This command only changes the local password file and not the YP master password  file.   See
       Chapter 3 of the Guide to the Yellow Pages Service for further information.

Diagnostics
       Please use a longer password
       Your new password does not meet the minimum length requirement.

       Mismatch- password unchanged
       You misspelled your new password or its verification.

       couldn't change passwd
       Your new password can not be activated. It must be different from your old password and your login name.

Files
       Password file

       Yellow Pages directory

See Also
       passwd(1), passwd(5yp), ypfiles(5yp), yppasswdd(8yp)
       Guide to the Yellow Pages Service

																     yppasswd(1yp)
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