Linux command day1001 time, FHS

Several concepts of management commands for files and directories

Working directory

Home Directory

Create directory: mkdir./A equals mkdir a

Application of Shell:

": Strong references

"": Weak reference

": Command app

Another feature of the Linux file system: Start with a dot as a hidden file, and you can use ls-a to view it.

The history command allows you to view command histories, shortcut keys:! Command!! 、！ -Command,! $ (equivalent to ESC,.),

Shell variable Assignment

File hierarchy criteria for Fhs:linux

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Linux command day1001 time, FHS