How to Use Dracut Command in Linux Dracut incorporates a set of default modules, which may be overridden by the command line or the configuration files. Modules provide specific functionality in the form of scripts. The best way to create an initramfs image in Linux is to use the Dracut comm...
Another tip, which is more of a terminal shortcut and may not work everywhere but still very handy. To use the last argument of the last ran command, use theAlt+.keys. Viewing a deeply nested directory with ls command and would like to switch into it? Instead of typing everything, jus...
You have been scouring the web looking for tutorials, but you see that there are two different versions ofPythonin use, and you don’t know which version ofPython is installed on Ubuntuby the installer, or if it installed any modules. Simply run the followingdpkg commandwithgrepas shown: d...
The Linuxcutcommand lets you extract portions of text from files or data streams. It's especially useful for working with delimited data, such asCSV files. Here's what you need to know. The cut Command Thecutcommand is a veteran of theUnixworld, making its debut in 1982 as part of AT&...
But if you are on Debian stable or running an older version of Ubuntu, you can use pre-build deb packages to install duf: wget https://github.com/muesli/duf/releases/download/v0.8.1/duf_0.8.1_linux_amd64.deb Now you caninstall the deb packageusing the given command: ...
The screen command launches a terminal in the background which can be detached from and then reconnected to. This is especially useful when you log in to the system remotely. You can start a screen, kick off a command, detach from the screen, and log out
Chapter 01How to Use the help Command in Linux Chapter 02How to Use the man command in Linux Chapter 03How to use the info and pinfo commands in Linux Conclusion Linux shell provides two types of commands: internal and external. Internal commands are part of the shell. External commands ar...
You'll use the query in an Oozie workflow later in this document. From the SSH connection, use the following command to create a file named useooziewf.hql: Bash Copy nano useooziewf.hql After the GNU nano editor opens, use the following query as the contents of the file: HiveQL ...
The Linux choose Command vs. AWK and cut To pick out pieces of text with choose, provide the indices for the words you want. Like awk, choose uses the space character as a delimiter for the input text by default: echo 'With this text, we conduct a test of various command-line text-...
Linux的常用命令 有人说Shell脚本是命令堆积的一个文件,按顺序去执行。还有人说想学好Shell脚本,要把Linux上各种常见的命令或工具掌握了,这些说法都没错。由于Shell语言本身在语法结构上比较简单,是面向过程编程,想实现复杂的功能有点强人所难!而且Shell本身又工作在Linux内核之上,在用户态调用Linux命令会很方面,所以...