Develop common Linux commands __linux

Press the "tab" key on the keyboard to automatically fill the full path

PWD Query path

Cd.. Switch to the previous level of the directory

CP: Copy file (CP path target path)

Linux's SCP commands allow you to copy files and directories between Linux;
==================
SCP command
==================
The SCP can replicate files between 2 Linux hosts;

Command basic format:
SCP [Optional parameters] File_source File_target

======
Replicate from local to remote
======
* Copy files:
* Command format:
SCP Local_file Remote_username@remote_ip:remote_folder
Or
SCP Local_file Remote_username@remote_ip:remote_file
Or
SCP Local_file Remote_ip:remote_folder
Or
SCP Local_file Remote_ip:remote_file

=====

LS: Querying the current directory ll will be displayed in the form of a list

More file: Is the content of the display file information, can not be modified

Cat files: IBID., query Display information

VI File: Display the contents of the file information, you can modify

The result of Echo > Manager.log is to empty the log with an empty output (that is, empty the log; ' > ' is also like a pipe)

grep and ' | ' Use of pipelines: (grep reference: http://linux.chinaunix.net/techdoc/system/2008/01/21/977150.shtml)

Ps-ef | grep memcached | grep 11211 View Process

more/usr/twsm/aischool-install/config/install.cfg | grep ^aischool_dbpasswd | cut-d "="-f2----Get password string

Kill-9 Delete Process

Zip-r Aischool-app-install.zipaischool-app-install Zip Package

Unzip-o Aischool-install.zip Extract Zip Package

VI into the editor

Launch editor: First esc-> ": Q" or ": q!" -> carriage return on the launch of ": Q." "(Do not Save Exit)": Wq (Save exit)

Set file permissions

chmod a+r+x-r/aqjg/tomcat6.0.26

A All Users u attribution User G Group O other users

= have permissions + Add permissions-Remove permissions

R readable permission w writable permission x executable permission

For example:

A+x Add executable permissions to all users

GO-WX the writable, executable permissions of the attribution group and other users

U=RWX attribution user with readable, writable, executable permissions

Su-user name: Toggle User

RM–RF (*.* or *) Clearance directory or delete file

SH Perform installation

1, extract the zip to the specified file below:

Unzip-o test.epub-d tmp/

2, recursive compression (epub file) files under the current directory:

Zip-r test.epub./*

3. Move epub file to specified directory (delete original compressed file)

mv/data/contentftp/cnbjtw0/content/2012/12/7/epub/88/88.epub/data/contentftp/cnbjtw0/content/2012/12/7/epub/

Move epub file, overwrite does not prompt.

\mv/data/contentftp/cnbjtw0/content/2012/12/7/epub/88/88.epub

/data/contentftp/cnbjtw0/content/2012/12/7/epub/88.epub

4, copy epub file to the specified directory (will not delete the original compressed file)

Cp-r/data/contentftp/cnbjtw0/content/2012/12/7/epub/88/88.epub

/data/contentftp/cnbjtw0/content/2012/12/7/epub/

5, need "\cp-f" only can copy the file does not prompt.

\cp-f/data/twcontentftp/picture/default/default.jpg/data/twcontentftp/picture/drm/default_88.jpg

Jstack PID View stack information for Java processes

###########################

Tail is the number of lines that display the contents of a file;

Tail-n row numeric file name;

For example, we show the last 5 lines of/etc/profile, which should be:

# tail-n 5/etc/profile

Tail-f/usr/tmp/logs/daemon_log.txt The above example can dynamically display the dynamic update of the log file.

###########################

more parameter application examples;

# more-dc/etc/profile Note: Displays prompts and displays from the terminal or top of the console;

# more +4/etc/profile Note: From the profile of the 4th line began to show;

# more-4/etc/profile Note: Display 4 lines per screen;

# more +/mail/etc/profile Note: Starting from the first two lines of a MAIL word in profile;

More action instructions;

We look at a larger file, to use more action instructions, such as ctrl+f (or space bar) is to display a screen, ctrl+b is to return to the previous screen;

The ENTER key can scroll down to show N row, to pass a set, default is 1 lines;

We only say a few commonly used;

Enter down n line, you need to define, the default is 1 lines;

CTRL+F scroll down one screen;

The null key scrolls down one screen;

Ctrl+b return to the previous screen;

= Output the line number of the current line;

: F output File name and line number of the current line;

V Call VI Editor;

! Command calls the shell and executes the command;

Q Quit more

###########################

Less is similar to more, but better still, he can [pgdn][pg up] the page.

More, less

In fact, the two commands have a great similarity between the paging display of the contents of the file, but the difference is also the following:

1 more: In the form of a percentage of pagination display, prompted to the user has shown how much content

Less: no hint of percentage

2 less more flexible, you can use the "PageDown" "Page Up" on the flip page to see what has been shown, and more does not have

SHIFT + G shortcut keys to quickly load all content.

3 to less display of content can use/' character ' input needs to look for characters or strings and highlighted, and more does not have

3. nl

Display the contents of the file output line number, similar to Cat-n functions, but also the overall output

Important web site :

http://www.cnblogs.com/skey_chen/archive/2011/03/29/1998912.html---Linux common command and application deployment

Http://www.cnblogs.com/laov/p/3541414.html#chmod

http://blog.csdn.net/xiaoguaihai/article/details/8705992

http://blog.chinaunix.net/uid-16728139-id-3154272.html--linux commonly used commands detailed