1、命令简介 history命令是查看之前在linux中,使用过的命令的历史记录。历史命令是被保存在内存中的,当退出或者登录shell时,会自动保存或读取。在内存中,历史命令仅能够存储1000条历史命令,该数量是由环境变量HISTSIZE进行控制。 2、命令语法 history [选项] 3、命令选项 4、使用示例 参考文档:Linux 命令(command) history-CJavaPy
1history [n]2history -c3history -d offset4history -anrw [filename]5history -p arg [arg ...]6history -s arg [arg ...]7With no options, display the command history list with line numbers. Lines listed with a * have been modified. An argument of n lists only thelastn lines. If ...
history命令是查看之前在linux中,使用过的命令的历史记录。历史命令是被保存在内存中的,当退出或者登录shell时,会自动保存或读取。在内存中,历史命令仅能够存储1000条历史命令,该数量是由环境变量HISTSIZE进行控制。本文主要是介绍history命令的选项、参数和用法以及使用实例。 ...
] 否定,取反 'script' command: a:append i:insert d:delete c:change s:替换 s/pattern/new/[flags] y:转换 y/inchars/outchars/ p:print cat filename | sed '1a Welcome to ShanXi' cat filename | sed '/^$/d' # 删除空行 cat filename | sed 's/is/IS/g' # 替换一个/...
histappend export PROMPT_COMMAND="history -a" ### jiagu history xianshi ### 3)source /etc/profile让配置生效 生成效果: 1 2018-07-10 19:45:39 192.168.204.1 root source /etc/profile 3、历史操作命令的清除:history -c 但此命令并不会清除保存在文件中的记录,因此需要手动删除.bash_profile文件中的...
Security: If you have typed sensitive information, such as passwords or confidential data, into the terminal, clearing the command history can help to protect that information from being accessed by others. Convenience: The command history can become cluttered over time, making it difficult to find...
This command clears their history on each log on and removes the problem of picking up a previously run command. You don't have to worry about picking up a command from previous sessions because the system logs off idle users after a specified period of time if you set the idle time limi...
history 通过.bash_history查看账号执行过得权限(2)打开/home各账号目录下的.bash_history,查看普通账号的历史命令为历史命令增加登录的IP地址,执行命令时间等信息。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 sed -i 's/^HISTSIZE=1000/HISTSZE=10000/g' /etc/profile (3)在/etc/profile的文件尾部...
操作日志~/.bash_history 或者命令行history 特别留意wget或curl命令,可能会有系统库以外的软件被下载,如spam bots 或 crypto miners。 top查看异常进程,strace-p PID 或者lsof -p PID会显示进程正在进行的所有系统调用 关闭服务器shutdown-h now 或者systemctlpoweroff ...
becomes possible to display which percentage of a memory map has been activated. Blinkenlights will also remove the commit / reserve / free page statistics from the status panel on the bottom right of the display. Please note this flag has the opposite meaning as it does in theblinkcommand. ...