http://kowaimononantenai.blogspot.jp/2012/04/byobu.html
そこで気になったのが、下のステータスバー。
結構いろいろあるので、どれがどれなのかがわからないものもある。
設定で変えられるので、デフォルトとは違うかもしれませんが、ほぼデフォルトで使っています。
それぞれのステータスバーが何を示すかちょっと書いて見ました。
$ man byobuをすると次のようなものが出てくるのでもう出ているステータスバーは文字の色などで検索すると見つけやすいです。
説明を見るとわかりますが、ある特定条件でしか出ないものもあります。
一応、manをの一部を載せておきます
STATUS NOTIFICATIONS
byobu supports a number of unique and interesting status notifications across the lowest two lines
in the screen. Each status notification item is independently configurable, enabled and disabled
by the configuration utility. The guide below helps identify each status item (in alphabetical
order):
apport - symbol displayed if there are pending crash reports; {!} symbol displayed on the lower bar
toward the left, in black on an orange background
arch - system architecture; displayed on the lower bar toward the left, in the default text color
on the default background color
battery - battery information; display on the lower bar toward the right; - indicates discharging,
+ indicates charging, = indicates fully charged; when charging or discharging, the current battery
capacity as a percentage is displayed; the colours green, yellow, and red are used to give further
indication of the battery's charge state; you may override the detected battery by setting BAT‐
TERY=/proc/acpi/battery/BAT0 in $BYOBU_CONFIG_DIR/statusrc
cpu_count - the number of cpu's or cores on the system; displayed in the lower bar toward the right
in the default text color on the default background, followed by a trailing 'x'
cpu_freq - the current frequency of the cpu in GHz; displayed in the lower bar toward the right in
white text on a light blue background
cpu_temp - the cpu temperature in Celsius (default) or Fahrenheit, configure TEMP=F or TEMP=C in
$BYOBU_CONFIG_DIR/statusrc; displayed in the lower bar toward the right in yellow text on a black
background; you may override the detected cpu temperature device by setting MONI‐
TORED_TEMP=/proc/acpi/whatever in $BYOBU_CONFIG_DIR/statusrc
custom - user defined custom scripts; must be executable programs of any kind in $BYOBU_CON‐
FIG_DIR/bin; must be named N_NAME, where N is the frequency in seconds to refresh the status indi‐
cator, and NAME is the name of the script; N should not be less than 5 seconds; the script should
echo a small amount of text to standard out, standard error is discarded; the indicator will be
displayed in the lower panel, in inverted colors to your current background/foreground scheme,
unless you manually specify the colors in your script's output; BEWARE, cpu-intensive custom
scripts may impact your overall system performance and could upset your system administrator!
Example: $BYOBU_CONFIG_DIR/bin/1000_uname
#!/bin/sh
printf "\005{= bw}%s\005{-}" "$(uname -r)"
date - the system date in YYYY-MM-DD formate; displayed in the lower on the far right in the
default text color on the default background
disk - total disk space available and total used on / directory; displayed in the lower bar on the
far right in white text on a light purple background; override the default directory by specifying
an alternate mount point with MONITORED_DISK=/wherever in $BYOBU_CONFIG_DIR/statusrc
disk_io - instantaneous read/write througput in kB/s or MB/s over the last 3 seconds; displayed in
the lower bar toward the right in white text on a light purple background with a leading '<' sign
indicating 'read speed' and '>' sign indicating 'write speed'; override the default monitored disk
by specifying an alternate device with MONITORED_DISK=/dev/sdb, and override the default
DISK_IO_THRESHOLD=50 (kB/s) in $BYOBU_CONFIG_DIR/statusrc
distro - OS/distribution name of the release running on the current system as reported by
lsb_release(1) or /etc/issue; displayed in the lower bar in bold black text toward the left on a
grey background; you may override the detected release with DISTRO=Whatever in $BYOBU_CON‐
FIG_DIR/statusrc
ec2_cost - an estimation of the cost of the current boot of the system in terms of the Amazon EC2
billing model; displayed in the lower bar toward the right in green text on a black background;
there is a leading '~' to indicate that this is an estimation, and the monetary units are US Dol‐
lars '$'; if not running in EC2, this plugin is disabled unless EC2_ESTIMATE=1 in ~/.byobu/statusrc
entropy - a count of the system's current entropy in bytes; displayed in the lower bar toward the
right in yellow text on a dark grey background; there is a leading 'e' to indicate 'entropy'
raid - note very prominently if there is a RAID failure detected, in red blinking text on a white
background; the term 'RAID' notes that there is something wrong with the RAID, and if there is a
rebuild/resync in progress, the percent complete is also shown
rcs_cost - an estimation of the cost of the current boot of the system in terms of the Rackspace
Cloud Server billing model; displayed in the lower bar toward the right in green text on a black
background; there is a leading '~' to indicate that this is an estimation, and the monetary units
are US Dollars '$'
fan_speed - cpu or system fan speed as reported by lm-sensors; displayed in the lower bar toward
the right in black text on a grey background; there is a trailing 'rpm' for units; you may override
the detected fan by setting FAN=/sys/path/to/your/fan1_input in $BYOBU_CONFIG_DIR/statusrc
hostname - the hostname of the system; displayed in the upper bar on the far right in bold black
text on a grey background; there is a leading '@' symbol if the username status is also enabled
ip_address - the IPv4 address of the system in dotted decimal form; displayed in the upper bar on
the far right in bold black text on a grey background; you can override and display your IPv6
address by setting 'IPV6=1', and you can show your external ip address by setting 'IP_EXTERNAL=1'
in $BYOBU_CONFIG_DIR/statusrc
ip_address4 - the IPv4 address of the system in dotted decimal form; displayed in the upper bar on
the far right in bold black text on a grey background; you can show your external ip address by
setting 'IP_EXTERNAL=1' in $BYOBU_CONFIG_DIR/statusrc
ip_address6 - the IPv6 address of the system; displayed in the upper bar on the far right in bold
black text on a grey background; you can show your external ip address by setting 'IP_EXTERNAL=1'
in $BYOBU_CONFIG_DIR/statusrc
load_average - the system load average over the last 1 minute; displayed in the lower bar toward
the right in black text on a yellow background
logo - an approximation of the current operating system's logo; displayed in the lower bar on the
far left; you may customize this logo by setting a chosen logo in $BYOBU_CONFIG_DIR/logo, or you
may override this with LOGO=:-D in $BYOBU_CONFIG_DIR/statusrc
mail - system mail for the current user; the letter '[M]' is displayed in the lower bar toward the
left in black text on a grey background
memory - total memory available and used in the system; displayed in the lower bar toward the right
in white text on a green background
menu - a simple indicator directing new users to use the F9 keybinding to access the byobu menu
network - instantaneous upload/download bandwidth in [GMk]bps over the last 3 seconds; nothing is
displayed if traffic is 0; displayed in the lower bar toward the left in white text on a purple
background with a leading '^' sign indicating 'up' and 'v' sign indicating 'down'; override the
default interface by specifying an alternate interface with MONITORED_NETWORK=eth1, and override
the default units (bits) with NETWORK_UNITS=bytes, and override the default NETWORK_THRESHOLD=20
(kbps) in $BYOBU_CONFIG_DIR/statusrc
notify_osd - Send on-screen notification messages to screen's notification buffer
processes - total number of processes running on the system; displayed in the lower bar in white
text on a dark yellow background with a trailing '&' indicating 'background processes'
reboot_required - symbol present if a reboot is required following a system update; displayed in
the lower bar white text on a blue background by the symbol '(R)'; additionally, reboot_required
will print '<F5>' in white text on a blue background, if Byobu requires you to reload your profile
to affect some changes; it will also detect if your system is currently in powernap(8) state and if
so print '.zZ'.
release - OS/distribution name of the release running on the current system as reported by
lsb_release(1) or /etc/issue; displayed in the lower bar in bold black text toward the left on a
grey background; you may override the detected release with RELEASE=Whatever in $BYOBU_CON‐
FIG_DIR/statusrc; you may also abbreviate the release string to N characters by setting
RELEASE_ABBREVIATED=N in $BYOBU_CONFIG_DIR/statusrc
services - users can configure a list of services to monitor, define the SERVICES variable in
$BYOBU_CONFIG_DIR/statusrc, a whitespace separated of services, each service should include the
init name of the service, then a pipe, and then an abbreviated name or symbol to display when run‐
ning (e.g. SERVICES="ssh|ssh apache2|http"); displayed in the lower bar toward the center in cyan
on a white background
swap - total swap space and total used as a percentage of the total available; displayed in the
lower bar toward the right in white text on a light green background with a trailing '%' sign
time - the system time in HH:MM:SS format; displayed in the lower bar on the far right in the
default text and default background colors
time_binary - only for the hard core geek, the local system time in binary; requires UTF8 support
in a VERY recent version of GNU Screen; you must additionally set "UTF8=1" in $BYOBU_CON‐
FIG_DIR/statusrc; displayed in the lower bar on the far right in the default text and background
colors
time_utc - the UTC system time in HH:MMformat; displayed in the lower bar on the far right in dark
text on a light background
updates_available - the number of updates available on the system; displayed in the lower bar
toward the right in white text on a red background with a trailing '!' sign; if any updates are
marked 'security updates', then there will be a total of two trailing exclamation points, '!!'
uptime - the total system uptime since last boot; displayed in the lower bar toward the right in
blue text on a grey background
users - the number of remote users logged into the system via sshd, empty if 0 users; displayed in
the lower bar toward the right in red text on a grey background with a trailing '#' sign; set
USERS_DISTINCT=1 to instead count the number of distinct users logged into the system (rather than
open ssh sessions)
whoami - the name of the user who owns the screen session; displayed in the upper bar toward the
far right in bold black text on a grey background
wifi_quality - the connection rate and signal quality of the wifi connection; displayed in the
lower bar toward the right in black text on a cyan background; the connection rate is in 'Mb/s' and
the signal quality is as a percentage with a trailing '%'; override the default interface by speci‐
fying an alternate interface with MONITORED_NETWORK=wlan0 in $BYOBU_CONFIG_DIR/statusrc
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