Tmux

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Resources

tmux (terminal multiplexer) 是一款终端复用类程序,它允许在单个终端(或窗口)中,管理多个分离的会话,窗口及面板。tmux 可以从屏幕上分离并继续在后台运行,然后重新连接。[1] 熟悉GNU Screen 的用户可能会发现tmux是另一个很好的选择。

安装

USE 标记

USE flags for app-misc/tmux Terminal multiplexer

utempter Include libutempter support local

Emerge

安装 app-misc/tmux:

root #emerge --ask app-misc/tmux

配置

标准方式安装tmux不会安装全局(/etc/tmux.conf)或用户(~/.tmux.conf)配置文件。示例在 {{Path|/usr/share/doc/tmux-{VERSION}/example_tmux.conf}} 文件中提供,可以复制到全局位置或用户位置,并使用文本编辑器根据需要进行编辑。

程序包示例

要查看配置文件列表,请运行以下命令:

user $ls /usr/share/doc/tmux-2.0/examples
h-boetes.conf.bz2  n-marriott.conf.bz2  screen-keys.conf.bz2  t-williams.conf.bz2  vim-keys.conf.bz2

然后使用cp将其中一个文件移动到全局位置(将影响所有用户)或用户的主目录下。

Wiki 示例

以下是文件~/.tmux.conf的示例:

FILE ~/.tmux.conf
set -g default-terminal "screen-256color"   # Use 256 colors
set -g history-limit 100000                 # Scrollback buffer number of lines
 
# Start window indexing at one instead of zero
set -g base-index 1
 
# Set the prefix key and some key bindings to match GNU Screen
set -g prefix C-a
bind-key C-a last-window
 
# Key bindings for horizontal and vertical panes
unbind %
bind | split-window -h
bind - split-window -v
 
# Enable window titles
#set -g set-titles on
 
# Window title string (uses statusbar variables)
set -g set-titles-string '#T'
 
# Status bar with load and time
set -g status-bg '#4e4e4e'
set -g status-fg '#ffffff'
set -g status-left ' '
set -g status-right '#[bg=#bbbbbb]#[fg=#000000]#(cut -d " " -f -3 /proc/loadavg) #[bg=#4e4e4e]#[fg=#ffffff]#(
date +" %H:%M ")'
set -g window-status-format '#I #W'
set -g window-status-current-format ' #I #W '
setw -g window-status-current-bg '#55ff55'
setw -g window-status-current-fg '#000000'
 
# Pane border colors
set -g pane-active-border-fg '#bbbbbb'
set -g pane-border-fg '#555555'
 
# Bind to reload config
bind r source-file ~/.tmux.conf

插件

A few plugins are available for tmux. See the sections below for available options.

tmux-mem-cpu-load

tmux-mem-cpu-load is a small program designed to monitor system activity in the status line of tmux. See the tmux-mem-cpu-load sub-article for more details on the installation process.

Tmux Resurrect

tmux-resurrect persists tmux environments across system restarts. See the resurrect sub-article for more details on the installation process.

使用

Key bindings

tmux can be controlled from an attached client by using a key combination of a prefix key stroke (Ctrl+b by default) followed by a command key.

After pressing Ctrl+B the following key combinations can be used:

General

  • ? = List all key bindings.
  • d = Detach the current client.
  • : = Enter the tmux command prompt.

Creating and managing windows

  • c = Create a new window
  • n = Change to the next window.
  • p = Change to the previous window.
  • l = Move to the previously selected window.
  • 0-9 = Select windows 0 to 9.
  • ' = Prompt for a window index to select. Then enter a number or title to switch to that window.
  • , = Rename the current window.
  • w = Choose the current window interactively.
  • :, then type list-windows enter = Display the list of windows.

Creating and managing panes

  • " = Split the current pane into two, top and bottom.
  • % = Split the current pane into two, left and right.
  • o = Select the next pane in the current window.
  • ; = Move to the previously active pane.
  • { = Swap the current pane with the previous pane.
  • } = Swap the current pane with the next pane.
  • Ctrl+o = Rotate the panes in the current window forwards.
  • Alt+1 to Alt+5 = Arrange panes in one of the five preset layouts: even-horizontal, even-vertical, main-horizontal, main-vertical, or tiled.
  • x = Kill the current pane.
  • ! = Break the current pane out of the window.

Copy, paste, and scroll operations

The keys available depend on whether emacs (default) or vi mode is selected. The mode-keys option can be set in .tmux.conf for vi mode.

  • [ = Enter copy mode to copy text or view the history.
  • ] = Paste the most recently copied buffer of text.
  • # = List all paste buffers.
  • - = Delete the most recently copied buffer of text.

Session control

Start session

Once started tmux creates a socket for the session in /tmp/S-<UID>/<Session Name>

tmux can be started with the following command:

user $tmux

Or, to give the session a name on start up, run:

user $tmux new-session -s portage

Listing sessions

List tmux sessions to see existing session information:

user $tmux ls
0: 1 windows (created Thu Apr  9 09:09:03 2015) [180x65] (attached)

When listing sessions the name of the session should appear as the first item in the session information line. It is possible to see from the output above the session was created without a name, hence the session is to be referenced as 0.

Another way to list sessions is by typing out the long list-sessions argument.

user $tmux list-sessions
0: 1 windows (created Thu Apr  9 09:09:03 2015) [180x65] (attached)

The exact same output as the previous list command is displayed.

Renaming a session

Simply using tmux to start a session will not provide the session with a nice, human readable name.

If the default session name is not descriptive enough (0 does not tend to describe much), then a session can be renamed. Suppose Larry the cow started tmux without specifying a session name on start up. He begins working on compiling a new version of Portage, and wants to change the session name to reflect his current task. To change the session name he would first assume control of tmux by pressing the magic key stroke: Ctrl+b, then : which will drop focus into the tmux control line. By default the line should turn yellow. Once there he would issue:

:rename-session -t 0 portage

Where 0 is the existing (default) session name and portage is the desired new name for the session. To rename when detached from a tmux session issue:

user $tmux rename-session -t 0 portage

Resuming a session

After the session is detached, all the active terminals remain active and so do commands that did not finish yet. To resume a session use attach -t <session_name>.

user $tmux a -t portage

Or use the long way of attaching to an existing session:

user $tmux attach -t portage

Daemon-like operation

To start a command in a tmux session without attaching to the session (like a daemon) use new-session -d followed by the command to execute in quotes:

user $tmux new-session -d 'emerge -uDNvp @world'

另请参阅

  • Screen - An alternative to tmux.

外部资源

参考