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Python Simple Crawler Using XML.DOM or XML.sax to parser XML files. (https://www.tutorialspoint.com/python/python_xml_processing.htm ) CSS (Cascading 阅读全文
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Setting proxy from terminal 1. For gtk3 programs such as rhythmbox and online accounts: First you need to enter proxy settings in network settings (al 阅读全文
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1. Add the PPA. Open terminal and paste (Shift+Ctrl+V) the command below and hit run: Type in your password (no visual feedback) when it asks and hit 阅读全文
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文件管理&目录管理 没有指定字段排序,默认按至左而右进行排序。 以第三个字段进行排序。 uniq只是检测相邻的两行。 -d显示重复项,-D显示相同行,-c显示每行显示的次数。 行,单词数,字节数 tr ab AB #将第2字符集替换掉第一字符集的字符。且一一对应。没有第一字符集的字符,则不替换。 t 阅读全文
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#Server_Socketimport socketimport os Server = socket.socket()Server.bind(('localhost',9999)) #bind the IP and port Server.listen() #listening to the p 阅读全文
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/etc/environment /etc/profile ~/.profile /etc/bash.bashrc ~/.bash /etc/motd ~/.pam_environment Script /etc/bash.bahrc # for all users ~/.bash # for in 阅读全文