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Full Discussion: Sudo + Nohup = no password?
Operating Systems Linux Red Hat Sudo + Nohup = no password? Post 302676505 by admin_xor on Tuesday 24th of July 2012 05:12:04 PM
Old 07-24-2012
C-shell has a built-in nohup command.

Code:
[unixuser@blue ~]$ csh
[unixuser@blue ~]$ nohup
nohup: Can't from terminal.
[unixuser@blue ~]$ which nohup
nohup: shell built-in command.

---------- Post updated at 04:12 PM ---------- Previous update was at 03:56 PM ----------

By the way, actually, I just read the post again and now I can tell for sure it's happening because of the '&'. The whole "sudo" process is being moved to the back ground.

To avoid this, nohup has to be called from within the script. You just have to fork out a separate process and put it in background. All has to be done from within the script. I might be able to tell the exact changes need to be done only after seeing the script.
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LEARN ABOUT V7

nohup

NOHUP(1)                                                           User Commands                                                          NOHUP(1)

NAME

       nohup - run a command immune to hangups, with output to a non-tty

SYNOPSIS

       nohup COMMAND [ARG]...
       nohup OPTION

DESCRIPTION

       Run COMMAND, ignoring hangup signals.

       --help display this help and exit

       --version
              output version information and exit

       If  standard  input  is a terminal, redirect it from an unreadable file.  If standard output is a terminal, append output to 'nohup.out' if
       possible, '$HOME/nohup.out' otherwise.  If standard error is a terminal, redirect it to standard output.   To  save  output  to  FILE,  use
       'nohup COMMAND > FILE'.

       NOTE: your shell may have its own version of nohup, which usually supersedes the version described here.  Please refer to your shell's doc-
       umentation for details about the options it supports.

AUTHOR

       Written by Jim Meyering.

REPORTING BUGS

       GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
       Report nohup translation bugs to <http://translationproject.org/team/>

COPYRIGHT

       Copyright (C) 2017 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       Full documentation at: <http://www.gnu.org/software/coreutils/nohup>
       or available locally via: info '(coreutils) nohup invocation'

GNU coreutils 8.28                                                 January 2018                                                           NOHUP(1)
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