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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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sleep(1)							   User Commands							  sleep(1)

NAME
sleep - suspend execution for an interval SYNOPSIS
sleep time DESCRIPTION
The sleep utility will suspend execution for at least the integral number of seconds specified by the time operand. OPERANDS
The following operands are supported: time A non-negative decimal integer specifying the number of seconds for which to suspend execution. EXAMPLES
Example 1: Suspending command execution for a time To execute a command after a certain amount of time: example% (sleep 105; command)& Example 2: Executing a command every so often example% while true do command sleep 37 done ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of sleep: LANG, LC_ALL, LC_CTYPE, LC_MES- SAGES, and NLSPATH. EXIT STATUS
The following exit values are returned: 0 The execution was successfully suspended for at least time seconds, or a SIGALRM signal was received (see NOTES). >0 An error has occurred. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ SEE ALSO
wait(1), alarm(2), sleep(3C), wait(3UCB), attributes(5), environ(5), standards(5) NOTES
If the sleep utility receives a SIGALRM signal, one of the following actions will be taken: o Terminate normally with a zero exit status. o Effectively ignore the signal. The sleep utility will take the standard action for all other signals. SunOS 5.10 1 Feb 1995 sleep(1)
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