comando screen

screen
screen [options] [command [args] ]

Provide ANSI/VT100 terminal emulation, making it possible to run multiple full-screen pseudo-terminals from one real terminal, and letting you manipulate and save your screen input and output, copy and paste between windows, etc.

Options
-a
Include all capabilities in each window's termcap.

-A
Adapt all windows to the size of the current terminal. Default is to try to use the previous window size.

-c file
Use file as the configuration file instead of the default $HOME/.screenrc.

-d
Detach session running elsewhere. With -r, reattach to this terminal. With -R, reattach to this terminal or create it if it doesn't already exist. With -RR, use the first session when reattaching if more than one session is available.

-D
Detach session running elsewhere, logging out before detaching. With -r, reattach to this terminal. With -R, reattach to this terminal or create it if it doesn't already exist. With -RR, do whatever is necessary to create a new session.

-e xy
Change command characters. Specify x as the command character (default Ctrl-a) and y as the character that generates a literal command character (default a). Specify in caret notation (e.g., -e ^Pp to set Ctrl-p as the command character, which is useful for emacs-mode shell ).

-f, -fn, -fa
Turn flow control on, off, or to automatic-switching mode.

-h num
Specify the size of the history scrollback buffer.

-i
Cause the interrupt key (usually Ctrl-c) to interrupt the display immediately when flow control is on. Use of this option is discouraged.

-l, -ln
Turn login mode on or off for /etc/utmp updating.

-ls, -list
Print list of pid.tty.host strings identifying screen sessions.

-L
Tell screen that automargin terminal has a writable last position.

-m
Ignore the $STY environment variable and create a new session. With -d, start session in detached mode; useful for scripts. With -D, start session in detached mode but don't fork a new process; the command exits if the session terminates.

-O
Use optimal output mode for terminal rather than true VT100 emulation.

-p window
Preselect the specified window if it exists.

-q
Suppress error message printing on startup. Exit with nonzero return code if unsuccessful.

-r [pid.tty.host]
-r sessionowner/[pid.tty.host]
Resume detached session. No other options except -d or -D can be specified. With sessionowner, resume another user's detached session; requires setuid root.

-R
Attempt to resume the first session found, or start a new session with the specified options. Set by default if screen is run as a login shell.

-s shell
Set the default shell, overriding the $SHELL environment variable.

-S name
Specify a name for the session being started.

-t name
Set the window's title.

-T term
Set $TERM to term instead of "screen".

-U
Run in UTF-8 mode and set the default for new windows to UTF-8.ctrl.

-v
Print version information and exit.

-wipe [match]
Like -ls, but remove destroyed sessions instead of marking them dead. If a match is specified, it should be in the same form as the argument to the -r option.

-x
Attach to a session that is not detached. Requires multi-display mode.

-X
Run specified command in specified session. Requires multi-display mode, and session must not be password-protected.

Key bindings
screen commands consist of a command character (Ctrl-a by default) followed by another character. For many of the commands, you can also specify the character as Ctrl-character--e.g., Ctrl-a Ctrl-d as well as Ctrl-a d. The default key bindings are listed here. You can change the bindings for yourself in the $HOME/.screenrc configuration file, or for all users in /etc/screenrc. The term in parentheses that follows the description is the equivalent configuration-file command for changing the key binding.

Ctrl-a '
Prompt for window name or number to switch to. (select)

Ctrl-a "
List all windows for selection. (windowlist -b)

Ctrl-a num
Switch to window num, where num is a digit in the range 0-9 or - (the blank window). (select num)

Ctrl-a Tab
Switch input focus to next region. (focus)

Ctrl-a Ctrl-a
Toggle to previously displayed window. (other)

Ctrl-a a
Send the command character (Ctrl-a) to the window. (meta)

Ctrl-a A
Prompt user to enter a name for the current window. (title)

Ctrl-a b
Send a break to the window. (break)

Ctrl-a B
Reopen the terminal line and send a break. (pow-break)

Ctrl-a c
Create a new window with a shell and switch to it. (screen)

Ctrl-a C
Clear the screen. (clear)

Ctrl-a d
Detach screen from this terminal. (detach)

Ctrl-a D D
Detach and log out. (pow-detach)

Ctrl-a f
Toggle flow control between on, off, and auto. (flow)

Ctrl-a F
Resize window to current region size. (fit)

Ctrl-a Ctrl-g
Toggle visual bell mode. (vbell)

Ctrl-a h
Write contents of the current window to the file hardcopy.n. (hardcopy)

Ctrl-a H
Begin/end logging of the current window to the file screenlog.n. (log)

Ctrl-a i
Show information about this window. (info)

Ctrl-a k
Kill current window. (kill)

Ctrl-a l
Refresh current window. (redisplay)

Ctrl-a L
Toggle window's login slot. Requires that screen be configured to update the utmp database. (login)

Ctrl-a m
Redisplay last message. (lastmsg)

Ctrl-a M
Toggle monitoring of the current window. (monitor)

Ctrl-a Space
Ctrl-a n
Switch to next window. (next)

Ctrl-a N
Show number and title of current window. (number)

Ctrl-a Backspace
Ctrl-a h
Ctrl-a p
Switch to previous window. (prev)

Ctrl-a q
Send a start signal (associated with Ctrl-q by terminals) to current window. (xon)

Ctrl-a Q
Delete all regions except the current one. (only)

Ctrl-a r
Toggle current window's line-wrap setting. (wrap)

Ctrl-a s
Send a stop signal (associated with Ctrl-s by terminals) to current window. (xoff)

Ctrl-a S
Split current region into two new regions. (split)

Ctrl-a t
Show system information, including time and date. (time)

Ctrl-a v
Display version information. (version)

Ctrl-a Ctrl-v
Enter digraph for entering characters that can't normally be entered. (digraph)

Ctrl-a w
List all windows. (windows)

Ctrl-a W
Toggle 80/132 columns. (width)

Ctrl-a x
Lock terminal. (lockscreen)

Ctrl-a X
Kill the current region. (remove)

Ctrl-a z
Suspend screen. (suspend)

Ctrl-a Z
Reset virtual terminal to its "power-on" values. (reset)

Ctrl-a .
Write out a .termcap file. (dumptermcap)

Ctrl-a ?
Show all key bindings. (help)

Ctrl-a Ctrl-\
Kill all windows and terminate screen. (quit)

Ctrl-a :
Enter command-line mode. (colon)

Ctrl-a [
Ctrl-a Esc
Enter copy/scrollback mode. (copy)

Ctrl-a ]
Write contents of the paste buffer to the standard input queue of the current window. (paste)

Ctrl-a {
Ctrl-a }
Copy and paste a previous line. (history)

Ctrl-a >
Write paste buffer to a file. (writebuf)

Ctrl-a <
Read screen-exchange file into paste buffer. (readbuf)

Ctrl-a =
Remove file used by Ctrl-a < and Ctrl-a >. (removebuf)

Ctrl-a ,
Show where screen comes from, where it went to, and why you can use it. (license)

Ctrl-a _
Start/stop monitoring the current window for inactivity. (silence)

Ctrl-a *
List all currently attached displays. (displays)