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test existence of one program in system

#!/bin/bash
# Author: Sergio Luiz Araujo Silva
# Site: http://vivaotux.blogspot.com
# Mail: voyeg3r at gmail dot com
# Created: Set 16 2011
# Last Change: set 16 2011 09:26 PM

# test script to check program in system
# in this case i'm checking existence os ethtool in system...

PROGRAM="`whereis ethtool | awk '{print $2}'`"

if [ -z $PROGRAM ]; then
   echo "para configurar full duplex instale primeiro ethtool..."
   read -p "pressione uma tecla para sair"
   exit
fi

echo "agora sim você tem o programa necessário"
read -p "pressione uma tecla para sair..."
exit
https://snipt.net/embed/c99583d2b972c717201a90e8b7b3c60a/
/raw/c99583d2b972c717201a90e8b7b3c60a/
c99583d2b972c717201a90e8b7b3c60a
bash
Bash
22
2019-06-19T21:21:29
True
False
False
/api/public/snipt/30043/
test-existence-of-one-program-in-system
<table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><a href="#L-1"> 1</a> <a href="#L-2"> 2</a> <a href="#L-3"> 3</a> <a href="#L-4"> 4</a> <a href="#L-5"> 5</a> <a href="#L-6"> 6</a> <a href="#L-7"> 7</a> <a href="#L-8"> 8</a> <a href="#L-9"> 9</a> <a href="#L-10">10</a> <a href="#L-11">11</a> <a href="#L-12">12</a> <a href="#L-13">13</a> <a href="#L-14">14</a> <a href="#L-15">15</a> <a href="#L-16">16</a> <a href="#L-17">17</a> <a href="#L-18">18</a> <a href="#L-19">19</a> <a href="#L-20">20</a> <a href="#L-21">21</a></pre></div></td><td class="code"><div class="highlight"><pre><span></span><span id="L-1"><a name="L-1"></a><span class="ch">#!/bin/bash</span> </span><span id="L-2"><a name="L-2"></a><span class="c1"># Author: Sergio Luiz Araujo Silva</span> </span><span id="L-3"><a name="L-3"></a><span class="c1"># Site: http://vivaotux.blogspot.com</span> </span><span id="L-4"><a name="L-4"></a><span class="c1"># Mail: voyeg3r at gmail dot com</span> </span><span id="L-5"><a name="L-5"></a><span class="c1"># Created: Set 16 2011</span> </span><span id="L-6"><a name="L-6"></a><span class="c1"># Last Change: set 16 2011 09:26 PM</span> </span><span id="L-7"><a name="L-7"></a> </span><span id="L-8"><a name="L-8"></a><span class="c1"># test script to check program in system</span> </span><span id="L-9"><a name="L-9"></a><span class="c1"># in this case i&#39;m checking existence os ethtool in system...</span> </span><span id="L-10"><a name="L-10"></a> </span><span id="L-11"><a name="L-11"></a><span class="nv">PROGRAM</span><span class="o">=</span><span class="s2">&quot;`whereis ethtool | awk &#39;{print </span><span class="nv">$2</span><span class="s2">}&#39;`&quot;</span> </span><span id="L-12"><a name="L-12"></a> </span><span id="L-13"><a name="L-13"></a><span class="k">if</span> <span class="o">[</span> -z <span class="nv">$PROGRAM</span> <span class="o">]</span><span class="p">;</span> <span class="k">then</span> </span><span id="L-14"><a name="L-14"></a> <span class="nb">echo</span> <span class="s2">&quot;para configurar full duplex instale primeiro ethtool...&quot;</span> </span><span id="L-15"><a name="L-15"></a> <span class="nb">read</span> -p <span class="s2">&quot;pressione uma tecla para sair&quot;</span> </span><span id="L-16"><a name="L-16"></a> <span class="nb">exit</span> </span><span id="L-17"><a name="L-17"></a><span class="k">fi</span> </span><span id="L-18"><a name="L-18"></a> </span><span id="L-19"><a name="L-19"></a><span class="nb">echo</span> <span class="s2">&quot;agora sim você tem o programa necessário&quot;</span> </span><span id="L-20"><a name="L-20"></a><span class="nb">read</span> -p <span class="s2">&quot;pressione uma tecla para sair...&quot;</span> </span><span id="L-21"><a name="L-21"></a><span class="nb">exit</span> </span></pre></div> </td></tr></table>
bash