Screen & Tmux tips: Linux Background Runtime program

Popular Introduction:

Screen Simple application:

screen myprogram     // 通过screen启动一个程序， 或者screen -L myprogram: turns on logging to ~/screenlog.0ctr+a 然后再按一下 d   // 使程序在后台运行，即detach-ls           // 列出在screen后台运行的程序，以及ID(例如4491.pts-2.localhost)-r ID         // 恢复运行程序到terminal,例如：screen -r 4491//退出当前screen会话（同 ctrl+a 再按 k），有时候会打开很多screen，可以通过exit退出。

Multi-Window Management:

If you run multiple screens in one terminal, that is, a nested multilayer screen, you ctrl+a 再按 w can view all the screen windows under the current terminal, the * number represents the window in which the current session is located, and then ctrl+a 再按 0~9 you can switch to a corresponding window.

A good article about screen, just read it:
http://www.ibm.com/developerworks/cn/linux/l-cn-screen/

The application of complex points is as follows:

One-off :

When your use is need to detach with the CTRL+A+D before you exit ssh.

Alternatively, if you want to run a process directly with screens you can use

aandfromitanewtheaon logging to ~/screenlog.0

Example

screen -dmSL myalias myscript.sh

You can then either:

Resume later usingscreen -x myalias

Or

Check the log fileless -r ~/screenlog.0

another:

Screen command Example 1:execute a command (or Shell-script), and detach the screen

$ screen unix-command-to-be-executed./unix-shell-script-to-be-executed

Once you ' ve used the "Screen command", you can detach it from the terminal using any one of the following method.

Screen Detach Method 1: Detach the screen usingCTRL+A d

When the command was executing, press followed by-detach the screen CTRL+A d .

Screen Detach Method 2: Detach the screen using -d option

When the command was running in another terminal, type the command as following.

$ screen -d SCREENID

Screen Command Example 2: List all the running screen processes

You can list all the running screens processes using the screen -ls command.

For example:

On Terminal 1 do the following:

$ screen ./myscript.sh

From Terminal 2 Your can view the list of all screens processes. You can also detach it from Terminal 2 as shown below.

ison:    4491.pts-2.localhost    (Attached)1in /var/run/screen/S-i5.

4491.pts-2.localhost   [4491.pts-2.localhost   detached.]

Screen Command Example 3:attach the screens when required

You can attach the screens at anytime by specifying, the screen ID as shown below. You can get the screen ID from the "screen-ls" command output.

$ screen -r 4491.pts-2.FC547

Tmux:

Let's start by understanding some of the elements of Tmux. The main elements of Tmux are divided into three layers:

• Session a set of windows that is typically used to summarize the same task. The session can have its own name to facilitate switching between tasks. Both detach and attach are session-based, with tmux commands to create a session.
• Windows has its own number in a single visible window. Created by Tmux in the session C-b+c .
• Pane panes, which are divided into small blocks of windows. Through the window C-b+" (split horizontally, left and right two pane) or C-b+% (vertically split, up and down two pane).

namely:
Session: A server can contain multiple sessions
Window: A session can contain multiple windows
pane: Panel, a window can contain multiple pane

Shortcut keys at a glance:

tmux  #开启tmux, create a new session:t  Tmux LS  #显示已有tmux列表 (c-b s)  tmux attach -session-t N Span class= "hljs-comment" > #重新连接上第n个session, i.e. attach. Or: Tmux a–t n  c-b C  #创建一个新的窗口  c-b n  #切换到下一个窗口  c-b P  #切换到上一个窗口  c-b l  #最后一个窗口, and the concept of the previous window is not the same yo, Who tried to know  c-b w  #通过上下键选择当前窗口中打开的会话  c-b n  #直接跳到第n个窗口  C-b &  #退出当前窗口 (Kill window while closing all small windows)  c-b x # Close the small window at the current cursor or close the window   
 If there is only one

C-b dtemporary disconnect session, i.e. Dettach, screen-like ctrl+a+d (via Tmux LS view session number, e.g. 0, then Tmux attach-session-t 0 re-attach)
C-b "Split out a window
C-b %Split out a window
C-b oSwitch in a small window
C-b(Direction key)
C-b !Creates a new window and maximizes the current small window

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Screen & Tmux tips: Linux Background Runtime program