GNU Screen

# Start screen
screen

# Start with a session name
screen -S mysession

# Exit screen (close all windows)
exit

# Or use C-a d to detach (keep the session alive)

# Create a new session
screen -S project1

# List sessions
screen -ls

# Attach to an existing session
screen -r project1

# Attach to a detached session
screen -d -r project1

# Force detach and attach to an attached session
screen -D -r project1

# Kill a session
screen -X -S project1 quit

# Kill all sessions
killall screen

# Detach from session (keep it alive)
# C-a d

# Attach to the last session
screen -r

# If multiple sessions exist, specify the name
screen -r project1

# Multi-attach (connect from multiple terminals)
screen -x project1

# Enable multi-user mode (write to .screenrc)
multiuser on
acladd username  # Add allowed user

# Connect to another user's session
screen -x username/sessionname

# Connect read-only
screen -x -r username/sessionname

# Create a new window
# C-a c

# Move to next window
# C-a n

# Move to previous window
# C-a p

# Move to window by number
# C-a 0-9

# Display window list
# C-a w

# Select from window list
# C-a "

# Rename current window
# C-a A

# Close current window
# C-a k
# or exit

# Horizontal split (top/bottom)
# C-a S

# Vertical split (left/right)
# C-a |

# Move between regions
# C-a Tab

# Close current region
# C-a X

# Close all but current region
# C-a Q

# Resize region
# C-a :resize +5
# C-a :resize -5

# Run command in specific session
screen -S mysession -X stuff "ls -la\n"

# Run command in specific window
screen -S mysession -p 0 -X stuff "echo hello\n"

# Select specific window
screen -S mysession -p 1 -X select

# Hide startup message
startup_message off

# Scrollback buffer size
defscrollback 10000

# Visual bell (no beep)
vbell on
vbell_msg "Bell!"

# Default shell
shell -$SHELL

# Auto detach
autodetach on

# UTF-8 support
defutf8 on

# Status line (hardstatus)
hardstatus alwayslastline
hardstatus string '%{= kG}[ %{G}%H %{g}][%= %{= kw}%?%-Lw%?%{r}(%{W}%n*%f%t%?(%u)%?%{r})%{w}%?%+Lw%?%?%= %{g}][%{B} %m/%d %{W}%c %{g}]'

# Auto-update window title
shelltitle "$ |bash"

# Mouse scroll support
termcapinfo xterm* ti@:te@

# 256 color support
term screen-256color

# Change escape key (optional)
# escape ^Tt  # Change to Ctrl+t

# Create default windows
screen -t main 0
screen -t work 1
screen -t logs 2

# Select first window
select 0

# Region layout
# layout autosave on
# layout new default

# Customize keybindings
bind j focus down
bind k focus up
bind h focus left
bind l focus right

# Resize
bind = resize =
bind + resize +1
bind - resize -1

# Split
bind | split -v
bind S split

# Preserve current directory in new windows
bind c screen 1
bind ^c screen 1

# Restart screen to apply configuration
# Exit with exit, then start again

# Reload configuration inside screen
# Press C-a : then type
source ~/.screenrc