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PO
 

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    <p>No need for a hideous regex to parse the output of <code>ps</code> – the <code>ps</code> utility already does what you ask of it. Calling it with the (admittedly somewhat arcane looking) following options</p> <pre class="lang-bsh prettyprint-override"><code>ps [-ww] -o comm= -p &lt;pid&gt; </code></pre> <p>will return the path to the executable belonging to your PID (the <code>-ww</code> argument is only needed if you output to a terminal, as <code>ps</code> will truncate the returned path without it. It should not be necessary otherwise).</p> <p>The problem with retrieving a bundle ID from there is that not all processes map to bundles with an Info.plist (which defines the bundle ID) – notably, *nix type executables are not bundles and thus have no bundle ID. Also, even in the case of app bundles, <code>ps</code> returns the core executable of an application, not the path to the bundle itself. As the path to the executable inside an application bundle is standardized, however (it resides in <code>Path.app/Contents/MacOS</code>), you can retrieve it with a bit of directory traversal.</p> <p>Assuming you have stored the output of the <code>ps</code> call above in the variable <code>execfile</code>, this</p> <pre class="lang-bsh prettyprint-override"><code>[[ ${execfile%/*} =~ ^.+/Contents/MacOS$ ]] &amp;&amp; defaults read "${execfile%/*/*}"/Info CFBundleIdentifier </code></pre> <p>will retrieve bundle identifiers for likely paths by using <code>defaults</code> to retrieve the value of the <code>CFBundleIdentifier</code> key of the <code>Info.plist</code> file every application bundle contains at its root.</p>
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    1. POHow to obtain an application's Bundle ID (or plist path) from only the PID?
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    1. USkopischke
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    1. POHow to obtain an application's Bundle ID (or plist path) from only the PID?
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    1. COAnything that remains arcane in 2012 is usually also known as "discouraged". I don't think "they" want "us" to do this. Looks good though... will test and report back.
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      1. USAlex Gray
    2. CO@alexgray: I tend to agree on the first part (two decades of evolution of the \*nix toolchain do not stop me from muttering passages straight out of the *Unix Haters Handbook* whenever I delve into the shell… I mean: `-ww`? really?). Did work on my system, for what it is worth.
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    3. COHa! I had never heard of [The Unix Hater's Handbook](http://m.simson.net/ugh.pdf). Hillarious.
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