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controla o brilho do monitor

#!/bin/bash
# Criado em: Ter 11/Out/2011 hs 08:09
# Last Change: 2011 Out 11 08:14:26
# vim:ft=sh:fdm=syntax:nu:
# Instituicao: none
# Proposito do script: controlar o brilho do monitor
# Autor: Sérgio Luiz Araújo Silva
# site: http://vivaotux.blogspot.com
# twitter: http://www.twitter.com/voyeg3r
#
# if which dont returns nothing exit
if ! NEEDED_COMMAND="$(which xbacklight)"; then
	echo "Instale primeiro o programa xbacklight"
	sleep 3; clear; exit 1
fi

usage()
{
	echo "Usage: $(basename $0) argument"
	echo "$(basename) $0 25"
	echo "$(basename) $0 valor"
}

if [[ -z "$1" ]]; then
	usage
fi

xbacklight -set $1
https://snipt.net/embed/68a12d9c28fb20b8a3fdb119d1a79900/
/raw/68a12d9c28fb20b8a3fdb119d1a79900/
68a12d9c28fb20b8a3fdb119d1a79900
bash
Bash
28
2019-06-20T03:17:40
True
False
False
/api/public/snipt/30842/
controla-o-brilho-do-monitor
<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> <a href="#L-22">22</a> <a href="#L-23">23</a> <a href="#L-24">24</a> <a href="#L-25">25</a> <a href="#L-26">26</a> <a href="#L-27">27</a> <a href="#L-28">28</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"># Criado em: Ter 11/Out/2011 hs 08:09</span> </span><span id="L-3"><a name="L-3"></a><span class="c1"># Last Change: 2011 Out 11 08:14:26</span> </span><span id="L-4"><a name="L-4"></a><span class="c1"># vim:ft=sh:fdm=syntax:nu:</span> </span><span id="L-5"><a name="L-5"></a><span class="c1"># Instituicao: none</span> </span><span id="L-6"><a name="L-6"></a><span class="c1"># Proposito do script: controlar o brilho do monitor</span> </span><span id="L-7"><a name="L-7"></a><span class="c1"># Autor: Sérgio Luiz Araújo Silva</span> </span><span id="L-8"><a name="L-8"></a><span class="c1"># site: http://vivaotux.blogspot.com</span> </span><span id="L-9"><a name="L-9"></a><span class="c1"># twitter: http://www.twitter.com/voyeg3r</span> </span><span id="L-10"><a name="L-10"></a><span class="c1">#</span> </span><span id="L-11"><a name="L-11"></a><span class="c1"># if which dont returns nothing exit</span> </span><span id="L-12"><a name="L-12"></a><span class="k">if</span> ! <span class="nv">NEEDED_COMMAND</span><span class="o">=</span><span class="s2">&quot;</span><span class="k">$(</span>which xbacklight<span class="k">)</span><span class="s2">&quot;</span><span class="p">;</span> <span class="k">then</span> </span><span id="L-13"><a name="L-13"></a> <span class="nb">echo</span> <span class="s2">&quot;Instale primeiro o programa xbacklight&quot;</span> </span><span id="L-14"><a name="L-14"></a> sleep 3<span class="p">;</span> clear<span class="p">;</span> <span class="nb">exit</span> 1 </span><span id="L-15"><a name="L-15"></a><span class="k">fi</span> </span><span id="L-16"><a name="L-16"></a> </span><span id="L-17"><a name="L-17"></a>usage<span class="o">()</span> </span><span id="L-18"><a name="L-18"></a><span class="o">{</span> </span><span id="L-19"><a name="L-19"></a> <span class="nb">echo</span> <span class="s2">&quot;Usage: </span><span class="k">$(</span>basename <span class="nv">$0</span><span class="k">)</span><span class="s2"> argument&quot;</span> </span><span id="L-20"><a name="L-20"></a> <span class="nb">echo</span> <span class="s2">&quot;</span><span class="k">$(</span>basename<span class="k">)</span><span class="s2"> </span><span class="nv">$0</span><span class="s2"> 25&quot;</span> </span><span id="L-21"><a name="L-21"></a> <span class="nb">echo</span> <span class="s2">&quot;</span><span class="k">$(</span>basename<span class="k">)</span><span class="s2"> </span><span class="nv">$0</span><span class="s2"> valor&quot;</span> </span><span id="L-22"><a name="L-22"></a><span class="o">}</span> </span><span id="L-23"><a name="L-23"></a> </span><span id="L-24"><a name="L-24"></a><span class="k">if</span> <span class="o">[[</span> -z <span class="s2">&quot;</span><span class="nv">$1</span><span class="s2">&quot;</span> <span class="o">]]</span><span class="p">;</span> <span class="k">then</span> </span><span id="L-25"><a name="L-25"></a> usage </span><span id="L-26"><a name="L-26"></a><span class="k">fi</span> </span><span id="L-27"><a name="L-27"></a> </span><span id="L-28"><a name="L-28"></a>xbacklight -set <span class="nv">$1</span> </span></pre></div> </td></tr></table>
bash