1. Commonly used commands in the terminal
| Order | result | expand |
| cd |
Switch directory (both absolute and relative paths are acceptable) | cd ~ Return to the user directory (one level below the home directory) |
| cd .. Back to the previous directory |
||
| cd - go back to the last directory you were in | ||
| pwd | Display the absolute path of the current directory | |
| ls | List the contents of the directory | ls -a includes hidden files (files beginning with .) |
| ls -l lists all information, including file type, size, last modification time, etc. | ||
| ls -R lists all files, and further lists the files in subfolders, that is, expands all | ||
| mkdir | create a new directory | |
| is rm | delete an empty directory | |
| touch | create a file | |
| cp | Copy files or empty directories | cp -r recursively copies all contents of a directory |
| rm | Delete files or empty directories | rm -r removes a directory and its contents |
| mv | Move or rename files and directories | mv filename folder path move file |
| mv filename1 filename2 rename file | ||
| cat | View the file content under the terminal | There are extended options, but commonly used gvim view |
| history | View command history for keystrokes | After the history record is opened, copy the 100th command to the terminal via !100 |
| grabbed -R | Searches for matching characters in files under a directory | grep -R good file.v Search for the character good in the file file.v |
| grep -R good Search for the character good in all files in the current directory | ||
| source | Reload configuration file (or execute shell script) |
Terminal split screen: ctrl+shift+t
2. Configure environment variables through bash scripts
If there is a bash script in the system, you can configure environment variables through it.
Open the shell script configuration file through gvim ~/.bashrc (the configuration file usually starts with a dot and ends with rc, and is placed in the home directory and hidden, and can be viewed through ls -a). After configuration, you need to reload the configuration file through source ~/.bashrc to take effect.
2.1. Simplified command configuration (alias)
Through alias configuration, such as alias c2='cd ../..', you can easily return to the upper two-level directory. Similarly, you can also simplify the operation of opening gvim by setting g='gvim'.
2.2. Configuration path
Configure the path through export ROOT=/home/..., and then enter $ROOT in the file to replace this string of paths. You can verify whether the path can jump normally through gf.
