Cyclades PC400 사용자 설명서

Other commands allow the user to change directories and see the contents of a directory.

pwd

Supplies the name of the current directory.  While logged in, the user is always
"in" a directory. The default initial directory is the user's home directory,
/home/<username>

ls [options] 

directory_name

Lists the files and directories within 

directory_name. Some useful options are -l

for more detailed output and -a which shows hidden system files.

cd 

directory_name

Changes the directory to the one specified

cat 

file_name

Prints the contents of 

file_name to the screen.

Shortcuts:

. (a dot)

represents the current directory

.. (two dots)

represents one directory above the current directory (i.e. one directory closer to the base
directory).

To edit a file using the vi editor, type

vi file_name

vi is a three-state line editor: it has a command mode, a line mode and an editing mode.  If in doubt as to which
mode you are in, press the <ESC> key which will bring you to the command mode.

command mode

navigation within the open file

Press the <ESC> key.

editing mode

text editing

See list of editing commands below.

line mode

file saving, opening, etc.  exiting
from vi

From the command mode, type ":" (the
colon).

Entering the program, the user is automatically in the command mode.  To navigate to the part of the file to be