Linux commands accumulate (more things are updated every day)

write to yourself:

May be updated every time things will be less, but want to make up, each update of the command to ensure that they do understand the update, every day will update some, let oneself gradually from small white to Daniel!

Cat Command

View the contents of a file and print it to a standard output device

Common Options -n numbers the number of lines of output starting from the first line

-e Displays the $ symbol at the end of each line

-B does not number blank lines

-S when two or more than two blank lines are contiguous, instead of blank lines for one line

MV Command

Can be used to move files or to change the name of a file

Common Options -T original file after, target directory in front

-F do not prompt for direct overwrite if the copied file already exists

RM Command

Delete Files command, can delete files can also delete directory

Common Option -R to delete a directory

--Delete thefile beginning with "-"

-RF Mandatory Delete no reminders (use with caution!) )

Tree Command

List contents of a directory as a tree view

common option -D displays only directory names

-P file is a directory tree that shows matching files to a file

-L: Show the first .. Layer Directory

mkdir Command

Create a directory that cannot be created without a parent directory

common option -P If there is no parent directory then automatically create a parent directory

RmDir Command

To delete an empty directory

common Option -P Remove from last level directory one at a time

LS command

used to view content under a specified working directory ( lists the files and subdirectories currently in the working directory )

Common Options -a show hidden files

-A shows hidden files but does not show ". "" .. "

-L not only lists file names, but also lists file patterns, permissions, owner, file size, etc.

-R files will also be listed if there are files in the directory

Touch Command

Can be used to create a new file or to make changes to an existing file for access time

common option -D uses the specified time instead of the current system time

CP Command

Used to copy files or directories

common Option -a preserves all properties of the file, including access time, etc.

-D Keep links when copying

-F If the file or directory already exists, the direct overwrite does not prompt

-I tip whether overwrite before overwrite

-R Copy all subdirectories or files under the directory file (recursive)

CD Command

Toggle Current Working Directory

Common options CD XXX switch to the xxx directory

CD ~ switch to your home directory

CD- switch to the last directory

TTY Command

Name used to display the current terminal link input device

Common commands

Useradd Command

Create a new user

Common Options -c plus notes

-D Displays the default settings when creating a user

-S Modify the shell type of the new user

-g Specifies the primary group for this new user

-g Specifies the additional group for this new user

-R created System account (default does not create home directory)

-M do not create home directory

Linux commands accumulate (more things are updated every day)