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,...
With hundreds of files in a default user directory and thousands more outside of that, sometimes you get more results fromfindthan you want. You can limit the depth of searches with the-maxdepthoption, followed by the number of directories you wantfindto descend into after the starting point...
userdel -r user_name//用户和文件一同删除 passwd 命令 passwd -l user_name//锁定用户(违规用户)或者 在/etc/shadow文件中属于该用户的行的第二个字段(密码)前面加上*就可以了。想恢复该用户,去掉*即可。 passwd -u user_name//解锁用户 passwd -d user_name//清除用户的密码 passwd user_name//修改或...
(这种情况下换用find或xargs通常可以解决。) 当你需要一个基本的计算器时,可以使用python解释器(当然你要用 python 的时候也是这样)。例如: >>> 2+3 5 文件及数据处理 在当前目录下通过文件名查找一个文件,使用类似于这样的命令:find . -iname '*something*'。在所有路径下通过文件名查找文件,使用locate some...
find $HOME -mtime 0 Search for files in your home directory which have been modified in the last twenty-four hours. This command works this way because the time since each file was last modified is divided by 24 hours and any remainder is discarded. That means that to match -mtime 0, ...
Adding a New User in Linux To start this section, we are going to show you the most basic usage of the useradd command to create a user on your Linux system. The most basic usage involves using useradd, followed by the name for the user you want to create. useradd USERNAMECopy When...
-I: Fetches the HTTP-header from the server. -u: Specifies the user credentials for server authentication. -d: Sends the specified data in a POST request to the server. -x: Specifies the proxy address to use for the requests. 30 Examples of cURL Command in Linux ...
Internet service providers assign the public IP to the device that is directly connected to the internet. To find the public IP address from the command line in Linux, one can use thecurlcommand followed by a website that returns the user’s public IP address. Thedigandhostcommand can also...
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...
find reference 1. Introduction The Linux find command can be used to find files and directories on a disk. It provides several command-line options that make it a powerful tool. In this tutorial, we’ll look at how to use the find command. 2. Syntax Let’s quickly take a look at the...