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Full Discussion: Pass Arguments to Command from Shell Script
Top Forums Shell Programming and Scripting Pass Arguments to Command from Shell Script Post 302951742 by bakunin on Monday 10th of August 2015 08:36:10 AM
Old 08-10-2015
Quote:
Originally Posted by nithin@embdes
Here is script
Code:
sudo hcitool -i hci0 lecc --random EA:74:48:D5:52:6B
sleep 1
sudo gatttool -i hci0 -b EA:74:48:D5:52:6B --interactive <<< connect

I think the biggest problem is here is the misconception about what sudo does and what it doesn't:

sudo will run a command as another user (usually as root), but: it is NOT a shell and neither it is a shell replacement!

I wonder why the user account you use to run the script is not allowed to run the commands within the script. If the commands are privileged in nature then use a privileged user which can run them natively. call the whole script via sudo instead of embedding sudo-enabled calls into the script.

If you really need to do it the way you tried use su instead of sudo and use sudo only to call the script:

Code:
#! /bin/sh
[...]
su - <user> -c <your command along with options>
[...]

Code:
user@sys # sudo <scriptname>

I hope this helps.

bakunin
 

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LEARN ABOUT CENTOS

pppoe-connect

PPPOE-CONNECT(8)					      System Manager's Manual						  PPPOE-CONNECT(8)

NAME

       pppoe-connect - Shell script to manage a PPPoE link

SYNOPSIS

       pppoe-connect [config_file]

       pppoe-connect interface user [config_file]

DESCRIPTION

       pppoe-connect  is  a  shell  script  which  manages a PPPoE connection using the Roaring Penguin user-space PPPoE client.  If you omit con-
       fig_file, the default file /etc/sysconfig/network-scripts/ifcfg-ppp0 is used.  If you supply interface and user,  then  they  override  the
       Ethernet interface and user-name settings in the configuration file.

       Note that normally, you should not invoke pppoe-connect directly.  Instead, use pppoe-start to bring up the PPPoE connection.

       pppoe-connect  first  reads a configuration file.  It then brings up a PPPoE connection.  If the connection ever drops, a message is logged
       to syslog, and pppoe-connect re-establishes the connection.  In addition, each time the connection is dropped  or  cannot  be  established,
       pppoe-connect executes the script /etc/ppp/pppoe-lost if it exists and is executable.

       The shell script pppoe-stop causes pppoe-connect to break out of its loop, bring the connection down, and exit.

TECHNICAL DETAILS

       pppoe-connect uses the following shell variables from the configuration file:

       ETH    The Ethernet interface connected to the DSL modem (for example, eth0).

       USER   The PPPoE user-id (for example, b1xxnxnx@sympatico.ca).

       PIDFILE
	      A file in which to write the process-ID of the pppoe-connect process (for example, /var/run/pppoe.pid).  Two additional files ($PID-
	      FILE.pppd and $PIDFILE.pppoe) hold the process-ID's of the pppd and pppoe processes, respectively.

       By using different configuration files with different PIDFILE settings, you can manage multiple PPPoE connections.  Just specify  the  con-
       figuration file as an argument to pppoe-start and pppoe-stop.

AUTHOR

       pppoe-connect was written by David F. Skoll <dfs@roaringpenguin.com>.

       The pppoe home page is http://www.roaringpenguin.com/pppoe/.

SEE ALSO

       pppoe(8),  pppoe-start(8),  pppoe-stop(8), pppd(8), pppoe.conf(5), pppoe-setup(8), pppoe-status(8), pppoe-sniff(8), pppoe-server(8), pppoe-
       relay(8)

4th Berkeley Distribution					 21 February 2000						  PPPOE-CONNECT(8)
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