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Control-a (C-a) is screen attention sequence and preceeds all screen commands. For example, to create a new screen window, type control-a, then c. To clarify even further: hold control, type a, release control, press c.
c = new window k = kill current window d = detach from screen ? = show online help
From outside of the screen session:
screen -R = reattach screen -x = multi-attach
Contents
caption and hardstatus
I use the following with Terminal's color scheme set to green on black:
caption always "%{Mk}%?%-Lw%?%{km}[%n*%f %t]%?(%u)%?%{mk}%?% Lw%? %{mk}"
hardstatus alwayslastline "%{kW}%H %{kB}|%{km} %l %=%{km}%c:%s %D %M/%d/%Y "
" = list window names, numbers, and flags N = show current window number A = set window name ' = specify name or number to switch to space = next window backspace = prev window # = goto window number # w = show window list in status bar C-a = switch to most recent window
Split Windows
S = create split in current region tab = move to next region X = delete current region Q = delete all but current region
Monitoring
M = toggle activity monitor notifications in status bar _ = toggle INactivity monitor notification in status bar (e.g. for when something's done compiling) m = recall last message displayed in status bar C-g = toggle audio / visual bell t = show time / load average
Scrollback / copy mode movement keys
[ = enter copy mode
h, j, k, l move the cursor line by line or column by column.
0, ^ and $ move to the leftmost column, to the first or last non-
whitespace character on the line.
H, M and L move the cursor to the leftmost column of the top, center
or bottom line of the window.
and - positions one line up and down.
G moves to the specified absolute line (default: end of buffer).
| moves to the specified absolute column.
w, b, e move the cursor word by word.
B, E move the cursor WORD by WORD (as in vi).
C-u and C-d scroll the display up/down by the specified amount of
lines while preserving the cursor position. (Default: half screen-
full).
C-b and C-f scroll the display up/down a full screen.
g moves to the beginning of the buffer.
% jumps to the specified percentage of the buffer.
Pasteboard
Read the /etc/passwd file into register p and paste it back out
C-a : readreg p /etc/passwd C-a : paste p
Marking: The copy range is specified by setting two marks. The text between these marks will be highlighted. Press space to set the first or second mark respectively. Y and y used to mark one whole line or to mark from start of line. W marks exactly one word. Repeat count: Any of these commands can be prefixed with a repeat count number by pressing digits 0..9 which is taken as a repeat count. Example: "C-a C-[ H 10 j 5 Y" will copy lines 11 to 15 into the paste buffer. Searching: / Vi-like search forward. ? Vi-like search backward. C-a s Emacs style incremental search forward. C-r Emacs style reverse i-search. Specials: There are however some keys that act differently than in vi. Vi does not allow one to yank rectangular blocks of text, but screen does. Press c or C to set the left or right margin respectively. If no repeat count is given, both default to the current cursor position. Example: Try this on a rather full text screen: "C-a [ M 20 l SPACE c 10 l 5 j C SPACE". This moves one to the middle line of the screen, moves in 20 col- umns left, marks the beginning of the paste buffer, sets the left column, moves 5 columns down, sets the right column, and then marks the end of the paste buffer. Now try: "C-a [ M 20 l SPACE 10 l 5 j SPACE" and notice the difference in the amount of text copied. J joins lines. It toggles between 4 modes: lines separated by a new- line character (012), lines glued seamless, lines separated by a single whitespace and comma separated lines. Note that you can prepend the newline character with a carriage return character, by issuing a "crlf on". v is for all the vi users with ":set numbers" - it toggles the left margin between column 9 and 1. Press a before the final space key to toggle in append mode. Thus the con- tents of the paste buffer will not be overwritten, but is appended to. A toggles in append mode and sets a (second) mark. > sets the (second) mark and writes the contents of the paste buffer to the screen-exchange file (/tmp/screen-exchange per default) once copy-mode is finished. This example demonstrates how to dump the whole scrollback buffer to that file: "C-A [ g SPACE G $ >". C-g gives information about the current line and column. x exchanges the first mark and the current cursor position. You can use this to adjust an already placed mark. @ does nothing. Does not even exit copy mode. All keys not described here exit copy mode.
Commands
Commands can exist in .screenrc or can be entered interactively with C-a, :
send the 'whoami' command to all screen windows simultaneously (\015 is octal for carriage return)
at \# stuff "whoami\015"
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