There appears to be a limit of 9 on the amount of arguments that may be passed to an external script from a plugin.  Can Tom or someone else in the know confirm this as by design or as a bug. Example code below

 

Thanks

 

snip from test.php

        <form name="test_settings" method="POST" action="/update.htm" target="progressFrame">
                <input type="hidden" name="cmd" value="/etc/rc.d/rc.test">
                <input type="hidden" name="arg1" value="test">
                <input type="hidden" name="arg2" value="this">
                <input type="hidden" name="arg3" value="is">
                <input type="hidden" name="arg4" value="just">
                <input type="hidden" name="arg5" value="a">
                <input type="hidden" name="arg6" value="test">
                <input type="hidden" name="arg7" value="theres">
                <input type="hidden" name="arg8" value="nothing">
                <input type="hidden" name="arg9" value="of">
                <input type="hidden" name="arg10" value="real">
                <input type="hidden" name="arg11" value="importance">

                <input type="submit" name="runCmd" value="Apply" style="margin-bottom:35px">
                <button type="button" style="margin-bottom:35px" onClick="done();">Done</button>
        </form>

 

from rc.test

#!/bin/sh

test_config() {
  echo "# test configuration" > /boot/config/plugins/test/test.cfg
  echo "ARG1=\"$ARG1\"" >> /boot/config/plugins/test/test.cfg
  echo "ARG2=\"$ARG2\"" >> /boot/config/plugins/test/test.cfg
  echo "ARG3=\"$ARG3\"" >> /boot/config/plugins/test/test.cfg
  echo "ARG4=\"$ARG4\"" >> /boot/config/plugins/test/test.cfg
  echo "ARG5=\"$ARG5\"" >> /boot/config/plugins/test/test.cfg
  echo "ARG6=\"$ARG6\"" >> /boot/config/plugins/test/test.cfg
  echo "ARG7=\"$ARG7\"" >> /boot/config/plugins/test/test.cfg
  echo "ARG8=\"$ARG8\"" >> /boot/config/plugins/test/test.cfg
  echo "ARG9=\"$ARG9\"" >> /boot/config/plugins/test/test.cfg
  echo "ARG10=\"$ARG10\"" >> /boot/config/plugins/test/test.cfg
  echo "ARG11=\"$ARG11\"" >> /boot/config/plugins/test/test.cfg
}

case "$1" in
        'test')
                ARG1=$1
                ARG2=$2
                ARG3=$3
                ARG4=$4
                ARG5=$5
                ARG6=$6
                ARG7=$7
                ARG8=$8
                ARG9=$9
                ARG10=$10
                ARG11=$11
                test_config
        ;;
        *)
                echo "usage $0"
esac

 

config written (note arg10 and 11 contain the value of arg1 with a 0 or a 1 at the end)

# test configuration
ARG1="test"
ARG2="this"
ARG3="is"
ARG4="just"
ARG5="a"
ARG6="test"
ARG7="theres"
ARG8="nothing"
ARG9="of"
ARG10="test0"
ARG11="test1"

I don't know these script languages but:

 

If $arg1 is a variable and "test" is it's content than it's clear to me that $arg10 gives "test0" and $arg11 gives "test1" if the first match for a variable is taken in that script language.

 

$arg1 --> test
$arg10 --> test"0"
$arg11 --> test"1"

 

It's no limit on args - the problem is the names you are using.

 

@hawihoney

 

Thanks for pointing me towards the right direction although it was not really with my variable names . 

The issue that I was having is actually nothing to do with unraid, but with the way bash handles arguments.

 

If less than 10 arguments are passed to a bash script they may be accessed with $1 - $9.  However more that that requires something more like the following

 

for TEST in "$@"
  do
       echo $TEST
  done

 

or

 

while (("$#")); do
   echo $1
   shift
done

 

 

there is a limit.

 

It's not a limit to unraid, but it's more of a limit to Linux Shell script.

 

Unix/Linux shell is only able to handle 9 parameters at a time.

 

With that form, what you're basically doing is running a script in the command line through html. (that's why its name is runCMD).

so when the form is submitted, it's basically running something like this:

 

/etc/rc.d/test arg1 arg2 arg3 ...

 

In your code you have this line:

 

                
ARG10=$10
ARG11=$11

 

There is no $10, $11 parameter. THis is getting accepted as $1 + "0", $1 + "1".

 

so hawihoney was partially right i guess lol

 

anyway, apparently thedroid beat me to it lol but in order to use more than 9 parameters, you need to use "shift" command.

I did something else in some of my plugins.

 

I wrote a PHP that writes all parameters to temporary file and in the PHP I run the rc.test which in turn reads the paramaters - this way there is no limit to amount of args passed.

 

I tried to use the "shift" command but didn't get it to work successfully.

 

There is a limit for bash, but its quite high.  Pass the args as you currently do from php/web form and in the back end bash script, address args > 9 as this...    ${10} ${11} etc.

 

Check my denyhosts plugin for a working example.

 

 

Regards,

overbyrn