/usr/bin/byobu-ctrl-a is in byobu 5.112-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 | #!/bin/sh
#
# byobu-ctrl-a - set the ctrl-a behavior
# Copyright (C) 2011 Canonical Ltd.
#
# Authors: Dustin Kirkland <kirkland@byobu.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 3 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
Usage() {
cat <<EOF
Usage: ${0##*/} [mode]
mode is one of 'screen' or 'emacs'
if not specified, prompt the user
EOF
}
PKG="byobu"
[ -r "$HOME/.byoburc" ] && . "$HOME/.byoburc"
[ -z "${BYOBU_PREFIX}" ] && export BYOBU_PREFIX="/usr" || export BYOBU_PREFIX
. "${BYOBU_PREFIX}/lib/${PKG}/include/common"
bind_to=""
keybindings="$BYOBU_CONFIG_DIR/keybindings"
[ "$BYOBU_BACKEND" = "tmux" ] && keybindings="$keybindings.tmux"
touch "$keybindings"
# If the user has already chosen an escape sequence, then
# presumably they want ctrl-a to operate in emacs mode
case "$BYOBU_BACKEND" in
"screen")
if grep -qs "^escape" "$keybindings"; then
# Check for escape definition in local keybindings config
bind_to="emacs"
fi
;;
"tmux")
if grep -qs "^set -g prefix" "$keybindings"e; then
# Check for escape definition in local keybindings config
bind_to="emacs"
fi
# Check for some other escape sequence in tmux keys
if $BYOBU_BACKEND list-keys 2>/dev/null | grep -qs "^bind-key\s\+[^a]\s\+send-prefix"; then
bind_to="emacs"
fi
;;
esac
case "${1}" in
-h|--help) Usage; exit 0;;
screen) bind_to="screen";;
emacs) bind_to="emacs";;
"") :;;
*) { Usage printf "%s\n" "Bad argument $1"; } 1>&2; exit 1;;
esac
if [ "${2}" ]; then
KEY=$(printf "$2" | $BYOBU_SED 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/')
key=$(printf "$2" | $BYOBU_SED 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/')
else
KEY="A"
key="a"
fi
while [ -z "$bind_to" ]; do
echo
echo "Configure Byobu's ctrl-a behavior..."
echo
echo "When you press ctrl-a in Byobu, do you want it to operate in:"
echo " (1) Screen mode (GNU Screen's default escape sequence)"
echo " (2) Emacs mode (go to beginning of line)"
echo
echo "Note that:"
echo " - F12 also operates as an escape in Byobu"
echo " - You can press F9 and choose your escape character"
echo " - You can run 'byobu-ctrl-a' at any time to change your selection"
echo
printf "Select [1 or 2]: "
s=$(head -n1)
echo
case "$s" in
1) bind_to="screen"; break;;
2) bind_to="emacs"; break;;
esac
done
case "$bind_to" in
emacs)
case "$BYOBU_BACKEND" in
screen)
$BYOBU_SED_INLINE -e "/^register x /d" -e "/^bindkey /d" -e "/^escape /d" "$keybindings"
echo "bindkey \"^${KEY}\"" >> "$keybindings"
$BYOBU_BACKEND -X at 0 source "$BYOBU_CONFIG_DIR/profile"
;;
tmux)
$BYOBU_SED_INLINE -e "/^set -g prefix/d" -e "/ send-prefix/d" -e "/^unbind-key -n C-${key}/d" "$keybindings"
echo "set -g prefix F12" >> "$keybindings"
echo "unbind-key -n C-${key}" >> "$keybindings"
$BYOBU_BACKEND source "$BYOBU_PREFIX/share/byobu/profiles/tmuxrc" 2>/dev/null
;;
esac
echo "INFO: ctrl-a will now operate in emacs mode"
;;
screen)
case "$BYOBU_BACKEND" in
screen)
$BYOBU_SED_INLINE -e "/^register x /d" -e "/^bindkey \"^\"/d" -e "/^escape /d" "$keybindings"
echo "bindkey \"^${KEY}\"" >> "$keybindings"
echo "escape \"^${KEY}${key}\"" >> "$keybindings"
echo "register x \"^${KEY}\"" >> "$keybindings"
$BYOBU_BACKEND -X at 0 source "$BYOBU_CONFIG_DIR/profile"
;;
tmux)
$BYOBU_SED_INLINE -e "/^set -g prefix/d" -e "/ send-prefix/d" -e "/^unbind-key -n C-${key}/d" "$keybindings"
echo "unbind-key -n C-${key}" >> "$keybindings"
if $BYOBU_BACKEND -V | grep " 1.5"; then
# tmux 1.5 supports a list of prefixes
echo "set -g prefix ^${KEY},F12" >> "$keybindings"
else
# tmux 1.6 and above supports prefix and prefix2
echo "set -g prefix ^${KEY}" >> "$keybindings"
echo "set -g prefix2 ^${KEY}" >> "$keybindings"
fi
echo "bind ${key} send-prefix" >> "$keybindings"
$BYOBU_BACKEND source "$BYOBU_PREFIX/share/byobu/profiles/tmuxrc" 2>/dev/null
;;
esac
echo "INFO: ctrl-a will now operate in GNU Screen mode"
;;
*)
echo "Error: bad value for binding: $bind_to"
;;
esac
if [ -z "${2}" ]; then
echo "To modify this behavior again later, run 'byobu-ctrl-a'"
echo
fi
# vi: syntax=sh ts=4 noexpandtab
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