1. ll, ls displays files in the current directory.
2. ctrl+z to run the program in the background. ctrl+c terminates the current program.
3. jobs -l to view the background program and its pid number.
4. ps to view the current process.
5. mkdir creates a folder
6. vi/vim [file_name] Open the file_name file, if there is no file, create a new file
7. shutdown -h now Shut down immediately
8. ctrl+alt+t brings up terminal
9. rm -rf (delete the library and run away, use with caution!), r means to delete the folder and all files in the folder directory. f means forced deletion without giving any reminder (use with caution!).
10. cd ~ to enter the root directory.
11.tar command[1]
Example:
# 压缩文件 file1 和目录 dir2 到 test.tar.gz
tar -zcvf test.tar.gz file1 dir2
# 解压 test.tar.gz（将 c 换成 x 即可）
tar -zxvf test.tar.gz
# 列出压缩文件的内容
tar -ztvf test.tar.gz Definition:
-z: Use gzip to compress and decompress files
-v: --verbose List processed files in detail
-f : --file=ARCHIVE Use archive files or devices, this option is usually required
-c : --create creates a new archive (compressed package)
-x : Extract files from compressed archive
reference:
[1] https://blog.csdn.net/afei__/article/details/82619843