5. 配置历史命令保留数量:如果想要设定历史命令的保留数量,可以编辑用户的bash配置文件。在终端中输入命令“sudo nano ~/.bashrc”,找到并修改以下内容:“HISTSIZE=1000”和“HISTFILESIZE=2000”,将数字改为所需的保留数量。 6. 保存并退出:在nano编辑器中,按下Ctrl+O键保存文件,然后按下Ctrl+X键退出编辑器。
sudo yum remove 软件包名称 示例:sudo yum remove firefox 该命令将卸载名为”firefox”的软件包。 同样地,如果你想彻底删除软件及其配置文件,可以使用以下命令: sudo yum remove 软件包名称 –purge 示例:sudo yum remove firefox –purge 此命令将删除名为”firefox”的软件包和其配置文件。 3. 使用dnf命令卸载...
在Linux 中永久并安全删除文件和目录 只需这 3 招 在大多数情况下,我们习惯于使用Delete键、垃圾箱或rm命令从我们的计算机中删除文件,但这不是永久安全地从硬盘中(或任何存储介质)删除文件的方法。 该文件只是对用户隐藏,它驻留在硬盘上的某个地方。它有可能被数据窃贼、执法取证或其它方式来恢复。 假设文件包含...
chage 代表更改时效change age。它更改用户密码到期信息。 chage 命令可以修改两次密码更改之间的天数,以及最后一次更改密码的日期。 系统使用此信息来确定用户何时应更改密码。 它还允许用户执行其他功能,例如设置帐户到期日期、在到期后将密码设置为无效、显示帐户时效信息、设置密码更改之前的最小和最大天数以及设置到期...
Lastly, remove the Live CD and reboot into your Linux system. Learning how to change the root password in Linux is just the one part of keeping your machine in tip-top shape. Explore how you can further protect your system from malicious actors byencrypting your hard disktoday. ...
bash grep sed 1. Overview Linux offers plenty of tools for text processing. While we can use these tools to transform the output of Linux commands viainter-process communicationlikepipes, we can also use them to manipulate text files.
how to install and remove .deb packages sudo dpkg -i package_name.deb sudo dpkg -r package_nameAppImage文件运行需要先设置为文件可被执行。 vim 如何查找和替换字符串 在normal模式下按下/进入查找模式,输入要查找的字符串并按下回车。Vim会跳转到第一个匹配,按下n查找下一个,按下N查找上一个,vim支持...
How to Remove a User’s Files (Home Directory and Mail) This example will remove the account ‘fred’and irreversibly delete all of the files in his home directory: userdel -r fred A user’shome directoryis the default directory they are placed in when logging in, which they have full ...
there may be different ways to perform these tasks. The most efficient way is to use the shell (for instance, Bash). This article assumes you already understand how to enter commands into a Linux terminal. (Read Nathan Lager'sWhat sysadmins need to know about using Bashif you want a refr...
You will need to remove the USB drive after installing, during the reboot. Step 4 - After installing Linux Once you have successfully installed a Linux distribution, there are a few more important steps: Get familiar with the preferred package manager used by your chosen Linux distribution. Linu...