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I am trying to install some software tool onto my Ubuntu 16.04 partition. The install script kinda breaks here:

getInstalledLegacyPXIRMPackage() {
    part=`$RPM -q $kLegacyPXIRMBaseName`
    if [ $? -eq 0 ]; then
        echo $part
        return
    fi
    echo ""
}

The error message I get is bash: -q: command not found.

This is part of an INSTALL file for a 32-bit version of labview 2012.

What is this error and what do I do to fix it? Thanks!

Edit: Okay sorry, technically, it does not break at the func definition. It breaks when it is called here:

if [ "$(getInstalledLegacyPXIRMPackage)" != "" ] && [ "$(getIncludedPXIPSPackage)" == "" ]; then
.
.
.
fi
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4
  • 3
    Think about what happens if the variable RPM is empty? (or if you tried to run a command like $foo arg otherarg with never having set foo) Commented Dec 11, 2017 at 18:11
  • Checking your code with shellcheck is a great start. Commented Dec 11, 2017 at 18:34
  • Also, Ubuntu, being derived from Debian, uses apt for its package management rather than rpm or yum. Commented Dec 11, 2017 at 18:36
  • Hmm, I hope the code you're really trying to run has normal spaces instead of the ones in this code block (I'm not sure what they are) Commented Dec 11, 2017 at 18:51

1 Answer 1

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The error is due to the variable RPM being empty or undefined at the time of executing the getInstalledLegacyPXIRMPackage function.

If $RPM is empty or undefined, the line

part=`$RPM -q $kLegacyPXIRMBaseName`

will be interpreted as an assignment of the result of the command -q $kLegacyPXIRMBaseName.

Make sure that you assign the proper value to RPM (and to kLegacyPXIRMBaseName).

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