logrotate command in Linux 背景 在生产过程中,由于磁盘空间、保留周期等因素,会对系统、应用等日志提出要求,要求系统日志定期进行轮转、压缩和删除,从而减少开销,而系统自带的logrotate则是一个简单又实用的小工具,下面着重介绍一下,满足日常需求。 语法 Usage: logrotate [OPTION...] <configfile> 常用参数 : -f...
Likecron, theatcommand allows us to run scheduled jobs in Linux. But while both are task schedulers, their use cases are dissimilar. Theatcommand is especially useful when system resources like memory are crucial for running programs. We can think of it as a command for scheduling programs ...
In this tutorial, we’ll take a look at the netcat command in Linux. We’ll start with an introduction to the command. Then, we’ll continue with a series of examples that use netcat.2. Installing netcatnetcat is a powerful networking utility tool. Its purpose is reading and writing ...
In this tutorial, you will learn about all the different ways you can use the echo command in Linux. Prerequisites A system running Linux Access to the terminal window/command line Echo Command Syntax Theechocommand in Linux is used to display a string provided by the user. The syntax is: ...
linux: command命令简介 Linux中,command 主要功能 查找命令的类型:command命令可以确定某个命令是否为 Shell 内建命令。 执行命令:使用command运行命令时,可以忽略任何 Shell 函数的定义,仅执行程序或者内建命令。 查找命令的路径:它还可以显示某个外部命令的完整路径。
Linux 命令(249)—— unset 命令(builtin) 编程算法shell 文章目录 1.命令简介 2.命令格式 3.选项说明 4.返回值 5.常用示例 参考文献 1.命令简介 unset 删除指定的 Shell 变量或函数。 注意,unset 不能删除具有只读属性的 Shell 变量和环境变量。 2.命令格式 unset [-fv] [name ...] 当不指定选项时,...
The ls command is a basic, useful, and obvious utility that Linux users have been putting to work for decades. Originally debuted in an AT&T build of...
Linux ioctl及ioctl command 在linux驱动中经常用到的函数为open、read、write用于对设备进行读取和写入数据,但是除了上述功能之外还有另外一个重要的功能ioctl,很多时候用户程序需要根据自己的需求配置所操纵的硬件,比如修改波特兰,获取设备信息等,可以通过ioctl方法来进行与该设备的驱动进行交互,ioctl是在用户层可以之间与...
wa:io wait cpu time (or) % CPU time spent in wait (on disk) hi:hardware irq (or) % CPU time spent servicing/handling hardware interrupts si:software irq (or) % CPU time spent servicing/handling software interrupts st:steal time –– % CPU time in involuntary wait by virtual CPU while...
To record all commands entered into the shell in a linux environment to a log file. This can be useful for auditing user actions or for security audits. This is not specific to Confluence or any product, but it will audit command line actions including those things related to Confluence. Se...