-One of the user interfaces such as Unix and Linux -Enter a text command in the terminal -Execute the command in the shell on the server side -Display processing results and error information on the terminal
・ Start / switch / stop the program -File operations -Command input history and completion ・ Batch execution of a series of processes
・ Can be used only with keyboard and text screen ・ Remote access via network -The command history becomes the work procedure. Can be automated. ・ Many tools support shell commands
| Command name | Contents |
|---|---|
| cat | -Commands used to output the contents of the file |
| cd | ・ Move the directory |
| cp | -Copy files and directories |
| echo | ・ Display specified characters |
| history | -Display command execution history |
| ls | -Display file and directory information |
| ls -a | ・ Show hidden files |
| ls -l | -Display detailed information of the file |
| ls -al | ・ Display hidden files and detailed information |
| mkdir | -Create a directory |
| mv | -Move or rename files and directories |
| pwd | -Display where the folder (directory) that the shell is currently paying attention to is |
| rm | -Delete files and directories |
| touch | -Create a new empty file |
| vi | -Create a new file and edit |
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