read by other session
#!/bin/sh sleep 3 echo "input a:" read a if [ "$a" == y ]; then echo $a else echo no fi 问题: 如果在shell sleep 的过程敲很多次回车 例如3次 现象为 [root@localhost]#./filename input a: no [root@localhost]# [root@localhost]# [root@localhost]# _ 也就是说shell记住了你敲的这3次回车 怎么能达到这种效果: 不管敲几次回车 只捕捉input a: 出现后的那一次输入 [root@localhost]#./filename i...
首页用session保存了数值，二级页面调用。 如果在浏览器里面输入首页地址，转到二级页面后，正常。但是如果将首页收藏后调用，二级页面的session得不到，输出会提示变量没定义，如果刷新一次首页后，二级页面又正常了。 ？？？
PHP生成验证码图片的源代码 php验证码图片生成代码 介绍一篇关于session的好文章,写的很详细 本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u1/56605/showart_1089479.html
1, SMS 1.1 android.provider.Telephony.SMS_RECEIVED Broadcasted then SMS is received please refer to: http://blog.chinaunix.net/u/9577/showart_1850111.html 2, Network 2.1 android.net.conn.CONNECTIVITY_CHANGE Broadcasted when the state of network connectivity is changed Please refer to: http://code.google.com/intl/zh-CN/android/reference/android/net/ConnectivityManager.html 3, Wifi 3.1 android...
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在lu交流的时候， beginner-bj 提到了ganglia data flow这个开源监控，看图片功能貌似不错，明天去单位研究一下。此款软件使用的rrdtool作图，c/s结构部署。n多的开源软件作图都是使用的rrdtool,rrdtool真是强大。 ganglia View Attachments (40) Info Added by Nigel Griffiths , last edited by Nigel Griffiths on Dec 31, 2007 ( view change ) div.auto_complete { width: 350px; b...
OpenBSD diskless The final target for an OpenBSD install on the net4521 is a CompactFlash card. However during development it would be inefficient to continually update the image, plus CF has a limited number of writes per sector. A better solution is to boot over the network. The network boot sequence is documented in diskless(8) which is a ...
