01-04-2013
There's no silver bullet for your problem. If compliant to your site's policy, you could disable the authentication requirement (cf. man sudoers):
Quote:
Authentication and Logging
The sudoers security policy requires that most users authenticate themselves before they can use sudo. A password is not required if the invoking user is root, if the
target user is the same as the invoking user, or if the policy has disabled authentication for the user or command.
You could use the -A option (cf. man sudo):
Quote:
sudo accepts the following command line options:
-A Normally, if sudo requires a password, it will read it from the user's terminal. If the -A (askpass) option is specified, a (possibly graphical) helper
program is executed to read the user's password and output the password to the standard output.
You finally could remove the reason why you need to switch to user B - adapt e.g. permissions of commands and files. Again, if compliant.
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