How To Install Or Switch To Older Version of GNU Parallel?
<p>I'm working with a related issue to GNU Parallel where we suspect a bug in the most recent GNU parallel release (<a href="https://stackoverflow.com/questions/39754323/how-to-avoid-sigchld-error-in-bash-script-that-uses-gnu-parallel">How To Avoid SIGCHLD error In Bash Script That Uses GNU Parallel</a>) and I would like to revert to an older version.</p>

<p>Originally, this is the code I used to install:</p>

<pre><code>wd=$(mktemp -d)
wget -nc -P $wd ftp://ftp.gnu.org/gnu/parallel/parallel-latest.tar.bz2

cd $wd
tar -xf parallel-latest.tar.bz2
cd parallel-*
./configure &amp;&amp; make &amp;&amp; make install
</code></pre>

<p>(Code found here: <a href="https://stackoverflow.com/questions/37212894/which-cygwin-package-to-get-parallel-command">which cygwin package to get `parallel` command?</a>)</p>

<p>This is the code I found to uninstall:</p>

<pre><code>(wget pi.dk/3 -qO - ||  curl pi.dk/3/) | bash
cd parallel-20*/
make uninstall
</code></pre>

<p>(Code found here: <a href="https://stackoverflow.com/questions/34344272/how-to-uninstall-gnu-parallel">How to uninstall GNU parallel?</a>)</p>

<p>Would it be correct to uninstall and then install the older package? Or, is there a way to install the older package and specify which version I would like to use?</p>

<p>Your insight and support of this question is highly appreciated. </p>