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Top Forums Shell Programming and Scripting Pass Arguments to Command from Shell Script Post 302951723 by nithin@embdes on Monday 10th of August 2015 04:28:57 AM
Old 08-10-2015
Ubuntu Pass Arguments to Command from Shell Script

Hi all,

I am working on a project, in which I have to connect to Bluetooth low energy device. I am able to connect and do data transfer from command line. But I want to do from script
Here is my script
Code:
#!/bin/bash
#sudo hcitool -i hci0 lescan
sleep 1
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
sleep 1
echo connnect //this command should be passed as arg to gatttool command
sleep 1 
char-write-cmd 0x0013 FF14
done

Here is screen shot when I run gatttool from command line
Image

Here is the screen shoot when I run from script
Image

In the above figure I have to pass command "connect" where there is red arrow from the script. I tried echo. But its not working

So please help me how to pass command
Smilie

Last edited by Franklin52; 08-10-2015 at 06:40 AM.. Reason: replaced icode tags with code tags
 

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

NAME
adsl-connect - Shell script to manage a PPPoE link SYNOPSIS
adsl-connect [config_file] adsl-connect interface user [config_file] DESCRIPTION
adsl-connect is a shell script which manages an ADSL 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 adsl-connect directly. Instead, use adsl-start to bring up the ADSL connection. adsl-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 adsl-connect re-establishes the connection. In addition, each time the connection is dropped or cannot be established, adsl- connect executes the script /etc/ppp/adsl-lost if it exists and is executable. The shell script adsl-stop causes adsl-connect to break out of its loop, bring the connection down, and exit. TECHNICAL DETAILS
adsl-connect uses the following shell variables from the configuration file: ETH The Ethernet interface connected to the ADSL modem (for example, eth0). USER The ADSL user-id (for example, b1xxnxnx@sympatico.ca). PIDFILE A file in which to write the process-ID of the adsl-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 adsl-start and adsl-stop. AUTHOR
adsl-connect was written by David F. Skoll <dfs@roaringpenguin.com>. The pppoe home page is http://www.roaringpenguin.com/pppoe/. SEE ALSO
pppoe(8), adsl-start(8), adsl-stop(8), pppd(8), pppoe.conf(5), adsl-setup(8), adsl-status(8), pppoe-sniff(8), pppoe-server(8), pppoe- relay(8) 4th Berkeley Distribution 21 February 2000 ADSL-CONNECT(8)
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