Linux commands (September 21, 2017 22:19:29)

CD ==change directory role switching path, for example: CD/***

Touch = = Touch to create a file. Example: Touch ellon.txt

Vim = = Complex Editor, equivalent to emeditor,editplus,notepad++

echo = = Print out content, with ">" or ">>" to overwrite and append content to the file

eg

echo "Ellon

Yeison ">ellon.txt

Cat = = View File contents

Special usage: Add multiple lines of content

Cat >>/data/ellon.txt<<eof

I am studing Linux.

Eof

EOF is to appear in pairs, and EOF can be replaced by arbitrary pairs of content.

CP ==copy Copy Command CTRL + C, for example: CP ellon.txt/tmp/

-R: Recursive, for copying directories;-P: Preserve properties.

-A: equivalent to-PDR

MV ==move, moving directories or files, for example: mv/data/root/

PWD ==print Work Directory View the path of the current user

RM = Remove Delete file or directory-f force,-R Delete directory

Production scenarios do not use RM, if not to use, you must first use the CP backup.

Alternative methods:

MV = move: Move to a temporary directory,

Can build an RM on its own is actually running MV

Find Delete:

Find is a * * * * (five-Star) command:

Man = = is used to view a command detail document. For example, the man CP will display a detailed description of the CP (copy) command. Include the meaning usage of each parameter and so on. Enter Q and the Enter will exit.

Linux commands (September 21, 2017 22:19:29)