1. 使用命令行历史记录:Linux系统会自动记录用户在终端中输入的命令。可以通过使用`history`命令来查看命令行的历史记录。可以通过在`.bashrc`或`.bash_profile`配置文件中设置`HISTSIZE`和`HISTFILESIZE`来限制记录的历史记录条数和文件大小。 2. 使用`script`命令:`script`命令可以将交互式会话的所有内容(包括用户...
By default, the history commands are located at ~/.bash_history. You can view the contents of this file by typing “cat ~/.bash_history” into the terminal.If you want to change the location of this file, you can use the HISTFILE environment variable. For example, if you wanted to st...
我们可以使用感叹号序号的组合重新执行,特别强调history命令默认存储近500个命令,按照LRU最少使用的队列原则,或者执行行时间的顺序淘汰。 使用-c参数我们可以清空所有的历史记录。 ubuntu@VM-8-8-ubuntu:~$ history -c ubuntu@VM-8-8-ubuntu:~$ ubuntu@VM-8-8-ubuntu:~$ history 1 2023-03-29 07:46:49 hi...
Bash history- Network linux commands man page Shell scripting What is Shell? Types of Shell? Scripts and Shell info Variables in Shell programming Predifined variables (environement variables) User defined variables variables name variable scopes Variable substitution Command substitution Command Line ...
You now know the physical and logical structure of a Linux system, what the kernel is, and how to work with processes. This chapter will teach you how the kernel starts— or boots. In other words, you’ll learn how the kernel moves into memory up to the point where the first user pr...
peng@ubuntu:~/test$ man -f time time (7) - overview of time and timers time (1) - run programs and summarize system resource usage time (2) - get time in seconds 2)清屏 clear清屏使用命令clear或者使用快捷键:ctrl + l3)历史纪录 history(history -n)这是一个非常有用的命令,想知道之前...
Miscellaneous Commands: 40. clear: Clear the terminal screen. 41. history: Display command history. 42. alias: Create custom command shortcuts. 43. grep: Search for text patterns in files. 44. tar: Archive files and directories into a single file. ...
-n 执行history历史中倒数第n个命令 !string 执行前一个以“string”开头的命令 !?string 执行前一个包含string的命令 !string:p 打印前一个以“string”开头的命令,不执行 !^:p 打印输出 !$ (上一条命令的第一个参数)的内容 !$:p 打印输出 !$ (上一条命令的最后一个参数)的内容 !*:p 打印输出 !
This chapter is a basic tour of the kernel-provided device infrastructure in a functioning Linux system. 本章是对Linux系统中内核提供的设备基础架构的基本介绍。 Throughout the history of Linux, there have been many changes to how the kernel presents devices to the user. We’ll begin by looking...
Archweb provides multiple management commands for importing various sorts of data. An overview of commands: generate_keyring - Assemble a GPG keyring with all known developer keys. pgp_import - Import keys and signatures from a given GPG keyring. ...