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Full Discussion: Running a command as another non-root user
Top Forums UNIX for Beginners Questions & Answers Running a command as another non-root user Post 303001918 by bakunin on Monday 14th of August 2017 06:10:18 PM
Old 08-14-2017
Quote:
Originally Posted by MIA651
Code:
 echo "<password>" | sudo -S -u <username> -k command

This would only work if sudo would accept passwords from stdin, which is not the case (for security reasons).

But even if this wold work you shouldn't do it that way, because you write the password for everybody to read who can read the scripts text. Furthermore, if the password would change you'd have to change the script as well.

Better set up a sudo-rule which allows userA to become userB without any password or to run a certain command (your script) as user B (also without any password). Such a rule would look like:

Code:
# cat /etc/sudoers
[....]
userA   ALL=(userB) NOPASSWD: /path/to/command *
[...]

Notice that the asterisk is probably necessary, otherwise one could not use any commandline arguments.

I hope this helps.

bakunin
This User Gave Thanks to bakunin For This Post:
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LEARN ABOUT OSF1

dxchpwd

dxchpwd(1X)															       dxchpwd(1X)

NAME

       dxchpwd - Create or change password program

SYNOPSIS

       dxchpwd

       dxchpwd -r  | -l

       dxchpwd [-r  | -l] -q

       dxchpwd [-r  | -l] -u  username

OPTIONS

       If dxchpwd is invoked without any options, it is assumed that the current user's password is to be changed.  The following options are also
       accepted: Tells dxchpwd that the password change is to be done for a Local user. This can be combined with the -u and  -q  options.   Tells
       dxchpwd	that the password change is to be done for a NIS user. This can only be done from a NIS master and can be combined with the -u and
       -q options.  Tells dxchpwd to query the user for the user name of the account whose password is to be changed.	Tells  dxchpwd	to  change
       this user's password.

DESCRIPTION

       The  dxchpwd  command lets you change your password.  When you invoke the dxchpwd command, the program prompts you for the old password and
       then for the new password.  Next, the program asks you for the new password again, to verify that you have typed it correctly.	Note  that
       the passwords are not displayed on the screen.

       Your new password must meet the length requirements specified by the authorization database for the user whose password is being changed.

       If  your system is running with enhanced security, you may have to choose a password from a list of randomly generated passwords or you may
       be prohibited from changing your password until its minimum lifetime has expired, as specified in the authorization database.

EXAMPLES

       The following example requests that the password be changed for user smith: dxchpwd -u smith

FILES

       Password file Protected Password Database dxchpwd executable

SEE ALSO

       X(1X), xdm(1X), passwd(1)

																       dxchpwd(1X)
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