linux 下的apropos命令工具介绍
在Linux中,apropos命令是一个非常有用的工具,用于在手册页中搜索与指定关键字相关的命令
apropos命令简介apropos命令用于在Linux的手册页(man pages)中搜索与给定关键字相关的命令。它可以帮助用户在不知道确切命令名称时,通过关键字找到相关的命令
用法:
apropos [选项] 关键字关键字:用于搜索的关键词,可以是命令名称的一部分或相关功能的描述。选项:可选参数,用于调整搜索行为。常用选项-e:只返回与关键字完全匹配的命令和描述。-a:逻辑与操作,只有当所有关键词都匹配时才返回结果。-l:不截断输出,显示完整的命令描述。-r:将每个关键字解释为正则表达式进行匹配。案例:
root@uk8s:~# apropos kill
choom (1) - display and adjust OOM-killer score.
kill (1) - send a signal to a process
killall (1) - kill processes by name
Proc::Killall (3pm) - Kill all instances of a process by pattern matching the command-line
killall5 (8) - send a signal to all processes.
pkill (1) - look up, signal, or wait for processes based on name and other attributes
Proc::Killfam (3pm) - kill a list of pids, and all their sub-children
skill (1) - send a signal or report process status
systemd-rfkill (8) - Load and save the RF kill switch state at boot and change
systemd-rfkill.service (8) - Load and save the RF kill switch state at boot and change
systemd-rfkill.socket (8) - Load and save the RF kill switch state at boot and change
systemd.kill (5) - Process killing procedure configuration
yes (1) - output a string repeatedly until killed
apropos与man的区别apropos:用于查找与特定关键词相关的命令,提供简要描述。man:用于查看特定命令的详细文档,包括用法、选项和示例。