Reprinted from: https://zhidao.baidu.com/question/1671709595114856107.html
Directory and file-related commands
- PWD: The absolute path used to display the current location. Format: PWD, the default user root directory for/home/your user name.
- LS: Used to display files in the current directory, only non-hidden files are displayed by default. Format: LS.
- CD: Used to change your working directory. Format: CD working directory (commonly used with LS, tab-padded), and CD/command is to enter the root directory; The command is entered into the previous directory, and the CD-command is returned to the previous directory entry.
- CP: Copy command, Format: CP file 1 path file 2 path, and copy command format cp-r directory 1 path directory 2 path
- RM: Delete command, Format: RM file path, delete directory using Rm-r directory path
- RmDir: Delete Empty directory, non-empty directory using RM-R format
- mkdir: Create a new directory under current directory, format: mkdir folder name
- Man: Find a command verbose usage, format: Man a command. Ubuntu Chinese man Manual configuration method: Man By default is in English, but the source of Ubuntu also has the Chinese version. The following are the configuration methods. Terminal input sudo apt-get install Manpages-zh, modify config file after installation sudo gedit/etc/manpath.config, replace all/usr/share/man with/usr/share/man/zh _CN, save it.
Package Management Commands
- Install software: apt-get install software 1 software 2
- Uninstalling software: Apt-get remove software 1 software 2
- Uninstall and clear the configuration: Apt-get remove--purge software name
- Update software information Database Apt-get update
- Perform a system upgrade Apt-get upgrade
- Search Packages Apt-cache Search softname1 softname2 softname3 ...
- Installing the Deb package Dpkg-i Xxx.deb
- Remove the Deb package dpkg-r Xxx.deb
- Remove Dpkg-r--purge xxx.deb along with the configuration file
- View Deb Package information Dpkg-info Xxx.deb
- View the Deb file copy details Dpkg-l xxx.deb
- View the Deb package information that is installed on the system dpkg-l
- Reconfigure the DEB package dpkg-reconfigure xxx
System Information Commands
- DF (shows how much space is left in the file system): This command shows the amount of space used for all mounted devices. It might be better to use df-h, because-H stands for human-readable, which uses megabytes m and gigabyte G to display device space usage, and the default is expressed in kilobytes K.
- Du (shows the specific size of a file or directory in a directory): This command can list the specific usage of files and directories, much more than DF. (Take floppy folder as an example)
- Free: Displays memory usage, also by default in kilobytes K, to be represented in megabytes m, add the parameter, i.e. free-m.
- UNAME-A (Show all system Information): output system all information, including hostname, kernel name and version, hardware information and so on.
- Lsb_release-a (Displays the currently used version)
Reprinted: Summary of several important commands of Ubuntu terminal
