Basic Linux Commands

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Work with File

Display File

If you write the command more and a name of a file then the file will be displayed.

User can controle the output:

• press space...the next screen is displayed
• press enter...the next row is displayed
• press q.......the command is finished

Copy File

The command

cp file_1 file_2

copies file_1 to file_2. The both files must be in the same working directory. If they are in various directories, the path must be given.

Rename and/or Move the File

The command

mv file_1 file_2

moves file_1 to file_2. The both files must be in the same working directory. If they are in various directories, the path must be given. The file_1 is removed from the disk.

Remove File

The command

rm file_a

removes the file_a from the system at all. If you use wildcard. For example

rm h*c

you will remove all files beginning with h and ending with c which are in working directory. If you write

rm *

you will erase all files from your working directory. If you write

rm -i *

it will be done also but the system will ask for permission before removing each file.

The command

rm -r your_file

causes removing of the directory your_file even if this directory is not empty.

Attention!

Command
rm -r /
will erase all your directories (including not empty directories). .

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