[SOLVED] Problem with running Bash Script

C4rtm4N · 02-17-2015, 02:14 PM

Hi

I have just started to use Linux on my Raspberry Pi to host a home automation server & I'm having a problem when trying to run a bash script.

The script in question is to turn off my Viera TV & is as follows

Code:

#!/bin/sh
curl -i \
-H "Accept: text/xml" \
-H "Cache-Control: no-cache" \
-H "Pragma: no-cache" \
-H 'SOAPACTION: "urn:panasonic-com:service:p00NetworkControl:1#X_SendKey"' \
-H "Content-Length: 200" \
-H 'Content-Type: text/xml;charset="utf-8"' \
-X POST --data '<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"> \
<s:Body> \
<u:X_SendKey xmlns:u="urn:panasonic-com:service:p00NetworkControl:1"> \
<X_KeyEvent>NRC_POWER-ONOFF</X_KeyEvent> \
</u:X_SendKey> \
</s:Body> \
</s:Envelope>' http://192.168.1.87:55000/nrc/control_0/

If I run this from the command line it works fine but when I try to run it from within the Home Automation application it returns error code 32512 which I've seen elsewhere is actually exit status 127 & basically down to not being able to find the program to execute.

Permissions are fine & I've tried using the full path name for both curl and the script itself but I still get the error. Has anyone any idea what I need to change as this looks to be a pure Linux (or rather my misunderstanding of Linux) issue rather than the home automation program

Thanks

Steve

veerain · 02-18-2015, 12:05 PM

Quote:

'<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"> \
<s:Body> \
<u:X_SendKey xmlns:u="urn

anasonic-com:service

00NetworkControl:1"> \
<X_KeyEvent>NRC_POWER-ONOFF</X_KeyEvent> \
</u:X_SendKey> \
</s:Body> \
</s:Envelope>'

Perhaps if you use single quote then '\' should not be used. So try using this instead:

Code:

'<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><s:Body><u:X_SendKey xmlns:u="urn:panasonic-com:service:p00NetworkControl:1"><X_KeyEvent>NRC_POWER-ONOFF</X_KeyEvent></u:X_SendKey></s:Body></s:Envelope>'

C4rtm4N · 02-18-2015, 02:57 PM

Thanks veerain

Again I can paste this onto the command line & it turns the TV off but I can't run the script.

At least there looks to be progress as from the prompt in Bash I get "/bin/sh^M: bad interpreter: No such file or directory" now or if I run it as sudo I get "No such file or directory"
Not sure of the correct Linux terminology but there's a shortcut to sh in that folder - is my problem something to do with the #!/bin/bash or #!/bin/sh that I'm stating at the start of my script?

Syntax is a killer for those of us not used to Linux

Thanks

Steve

suicidaleggroll · 02-18-2015, 02:59 PM

Did you write that script on a Windows system and then copy it onto the RPi by any chance?

The ^M at the end of the line is a dead giveaway that the file does not have proper Unix line endings. You can also tell from the output of the "file" command, it will tell you the line ending style used for the file. Use the dos2unix utility to convert it if necessary.

C4rtm4N · 02-18-2015, 03:29 PM

Thanks suicidaleggroll - that was my issue all along!

I thought that I'd been really careful by using Notepad++ but clearly I wasn't careful enough & I need to use dos2Unix a lot more in the future

Regards

Steve

grail · 02-18-2015, 06:30 PM

You can tell notepad++ to use unix line endings

Also, instead of quoting, a cleaner look can be to use a here document:

Code:

curl -i \
-H "Accept: text/xml" \
-H "Cache-Control: no-cache" \
-H "Pragma: no-cache" \
-H 'SOAPACTION: "urn:panasonic-com:service:p00NetworkControl:1#X_SendKey"' \
-H "Content-Length: 200" \
-H 'Content-Type: text/xml;charset="utf-8"' \
-X POST --data <<-EOF
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
  <s:Body>
    <u:X_SendKey xmlns:u="urn:panasonic-com:service:p00NetworkControl:1">
      <X_KeyEvent>NRC_POWER-ONOFF</X_KeyEvent>
    </u:X_SendKey>
  </s:Body>
</s:Envelope>
EOF
http://192.168.1.87:55000/nrc/control_0/

I haven't tried this but you get the idea