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<title><![CDATA[ linux下显示dd命令的进度]]></title> 
<author>jed &lt;jed521@163.com&gt;</author>
<category><![CDATA[服务器技术]]></category>
<pubDate>Tue, 11 Jul 2017 09:11:16 +0000</pubDate> 
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	Linux下显示dd命令的进度：<br/><div class="code"><br/>dd if=/dev/zero of=/tmp/zero.img bs=10M count=100000<br/></div><br/>想要查看上面的dd命令的执行进度，可以使用下面几种方法：<br/><br/>比如：每5秒输出dd的进度<br/><br/>方法一：<br/><div class="code"><br/>watch -n 5 pkill -USR1 ^dd$<br/></div><br/><br/>方法二：<br/><div class="code"><br/>watch -n 5 killall -USR1 dd<br/></div><br/>方法三：<br/><div class="code"><br/>while killall -USR1 dd; do sleep 5; done<br/></div><br/>方法四：<br/><div class="code"><br/>while (ps auxww &#124;grep &quot; dd &quot; &#124;grep -v grep &#124;awk &#039;&#123;print $2&#125;&#039; &#124;while read pid; do kill -USR1 $pid; done) ; do sleep 5; done<br/></div><br/>上述四种方法中使用三个命令：pkill、killall、kill向dd命令发送SIGUSR1信息，dd命令进程接收到信号之后就打印出自己当前的进度。
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<pubDate>Thu, 01 Jan 1970 00:00:00 +0000</pubDate> 
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