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history 命令用于显示指定数目的指令命令，读取历史命令文件中的目录到历史命令缓冲区和将历史命令缓冲区中的目录写入命令文件。 语法 history [options] [file] options -a ：缓冲区追加写入文件 -w ：缓冲区覆盖写入文件 -r ：读取历史文件写入缓冲区 -c ：清空缓冲区 n ：打印最近n条历史命令 执行历史记录中的命令 !n ：执行第 n 条命令 !! ：执行上一条命令 !-n ：执行倒数第 n 条命令 !str ：执行最后一个以 str 打头的命令 上（Ctrl+P）下键 ：切换历史命令 Ctrl + r ：搜索 获取历史命令中参数(! 或 !! 打头) 格式： ! （^ $ * ） : 第m个参数 ! 第n条命令 : （^ $ * m） 用法： !^ 第一个参数 !:m 第m个参数 !n:^ 第n条命令的第一个参数 !n:m 第n条命令的第m个参数 !string:^ 以 string 开头的命令的第一个参数 !string:n 以 string 开头的命令的第n个参数 实例： ls /usr/local/etc #如同执行 cd /usr/local/etc cd !* 环境变量 HISTTIMEFORMAT="`hostname` %F %T " ：配置格式化的时间 命令历史前加入 主机名 、日期、时间等信息 HISTSIZE=500

　　　　一、查看容器镜像的历史操作记录 　　　　　　　　docker history centos:7-with-killall 　　　　 　　　　　　　　　　 来源： https://www.cnblogs.com/S--S/p/11718609.html

x86 CPUs have had all kinds of tricky modes and memory segmentation over the generations from 16-bit to 32-bit to 64-bit. These days with modern OSes using modern CPUs in modern operating modes you don't have to worry about memory segments, but you can still run legacy apps on legacy OSes on the modern CPUs, in which case I presume the CPUs run in a special legacy mode (protected mode, real mode, etc). So obviously the segment registers exist for reasons of backward compatibility, but is that the only reason? Are there modern uses for the segment registers too? Or have they just become general

1、定制history的功能，可通过环境变量实现 1.1、HISTSIZE：history可保留的命令条数，如果把此变量设为0，则不记录history 1.2、HISFILE： history历史文件的保存位置，默认.bash_history文件，清空或删除此文件，可以清除历史命令 1.3、HISTFILESIZE：.bash_history文件保存的历史命令条数 1.4、HISTTIMEFORMAT：history显示时间 export HISTTIMEFORMAT='%F %T ' 1.5、HISTCONTROL：控制命令的历史记录 HISTCONTROL=ignoredups #忽略连续重复的命令 HISTCONTROL=ignorespace #忽略以空格开始的命令 HISTCONTROL=ignoreboth #忽略以上两种 HISTCONTROL=erasedups #忽略所有历史命令中的重复 示例： export HISTCONTROL=ignorespace 来源： https://www.cnblogs.com/likoo/p/11714079.html

I just came across an answer on SO with a curious syntax: How do I include a newline character in a string in Delphi? MyString := 'Hello,' + ^M + ^J + 'world!'; I've been using Delphi for several years now, but I didn't know you could use the circumflex sign for control characters. Is this just a left over from the early Delphi or Turbo Pascal days? Should it be used nowadays? PS: I'm not asking about advice on the line break characters, there is sLineBreak and other methods as discussed in the original question. Yes this is a legacy from days of yore. And no you should not get into the habit

window 对象给我们提供了一个 history 对象，与浏览器历史记录进行交互，该对象包含用户（在浏览器窗口中）访问过的 URL history对象中的方法： 　history.back( ); 可以后退功能 　history.forward( ); 前进功能 　history.go( 参数 ); 前进后退功能 参数如果是 1 前进一个页面 如果是 -1 后退一个页面 来源： https://www.cnblogs.com/qtbb/p/11695239.html

Am I able to get the current call history with the call number and DateTime details from the phone with the Mango API? I think it is not possible with the current one. There is no API to retrieve Call History. This is mainly due to privacy concerns and protecting the user from nefarious applications behaving badly on the device. You will notice that among the API is a collection of Launchers and Choosers. One of which is the PhoneNumberChooser Task. This particular task launches the Contacts application and allows the user to physically select a contact number to dial from your application.

Is there an easy way to browse through command history and reuse old commands in a Jupyter notebook? Some equivalent to either the arrow up/down use in the iPython console or to the % sign use in Mathematica. (Although the answer might seem trivial to an expert, it is really hard to find for a newbie) I was looking for the same. But a year later, and after about 10 min of scouring the best I found ( link ) is this magic command: %recall last or %recall <integer> , which after execution copies a command from history into a new cell. Probably not quite what you had been looking - a tad too

查了一次 history.pushState使用人家的根本跑不起来报错 发现问题是 不能传 dom 且不能超过640k 来源： https://www.cnblogs.com/huhaoq/p/11690661.html