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Top Forums UNIX for Advanced & Expert Users Syntax when using the 'exec' command Post 302985375 by Don Cragun on Tuesday 8th of November 2016 03:38:36 PM
Old 11-08-2016
Running the command:
Code:
sudo exec >> $logFile 2>&1

would setup a set-UID environment in which it will run the command:
Code:
exec >> $logFile 2>&1

and exit. Doing that seems pointless (the redirections will disappear when the command sudo ran completes and no redirections will have occurred in the current shell execution environment that your script will return to when the sudo is done).

If you want to run a script in a set-UID environment so it can open files to be used by that script, you need to use something more like:
Code:
sudo script_name

This User Gave Thanks to Don Cragun For This Post:
 

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DOVEADM-EXEC(1) 						      Dovecot							   DOVEADM-EXEC(1)

NAME
doveadm-exec - easily execute commands from Dovecot's libexec_dir SYNOPSIS
doveadm [-Dv] exec binary [binary arguments] DESCRIPTION
This command allows administrators and local users to simply execute commands from within libexec_dir. So for example a logged in system user could start a pre-authenticated imap session, using the command: doveadm exec imap. An administrator would use the command: doveadm exec imap -u username. OPTIONS
Global doveadm(1) options: -D Enables verbosity and debug messages. -v Enables verbosity, including progress counter. ARGUMENTS
binary the name of an executable located in /usr/libexec/dovecot. binary arguments options and arguments, wich will be passed through to the binary. EXAMPLE
This example demonstrates how to deliver a message from a file to a user's mailbox. doveadm exec dovecot-lda -d user@example.net -f admin@example.net < ~/stuff/welcome.msg REPORTING BUGS
Report bugs, including doveconf -n output, to the Dovecot Mailing List <dovecot@dovecot.org>. Information about reporting bugs is avail- able at: http://dovecot.org/bugreport.html SEE ALSO
doveadm(1), dovecot-lda(1) Dovecot v2.2 2013-08-05 DOVEADM-EXEC(1)
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