Conky 在卸载卷后抱怨 "No such file or directory"
Conky complains about "No such file or directory" after unmounting a volume
我有一个 bash 脚本来检查我在系统中的可移动设备。
此脚本由 Conky 调用以动态 show/hide 所述设备及其使用和免费 space。
脚本似乎运行良好：
插入新设备时，它会出现在 Conky 中。
并且移除后消失。
但是，在移除设备后，conky 会抱怨以下消息，直到设备再次插回：
conky: statfs64 '/media/acs/TOSHIBA': No such file or directory
有没有办法让 conky 停止抱怨已移除的设备？
Conky 配置（仅相关部分）：
conky.config = {
alignment = 'top_right',
background = false,
border_width = 1,
cpu_avg_samples = 2,
default_color = 'white',
default_outline_color = 'white',
default_shade_color = 'white',
double_buffer = true,
draw_borders = false,
draw_graph_borders = true,
draw_outline = false,
draw_shades = false,
font = 'DejaVu Sans Mono:size=12',
gap_x = 10,
gap_y = 60,
minimum_height = 5,
minimum_width = 5,
net_avg_samples = 2,
no_buffers = true,
out_to_console = false,
out_to_stderr = false,
extra_newline = false,
own_window = true,
own_window_class = 'Conky',
own_window_transparent = false,
own_window_type = 'desktop',
own_window_argb_visual = true,
own_window_argb_value = 120,
own_window_hints = 'undecorated,below,sticky,skip_taskbar,skip_pager',
stippled_borders = 0,
update_interval = 1.5,
uppercase = false,
use_xft = true,
use_spacer = 'none',
show_graph_scale = false,
show_graph_range = false,
template0 = [[${if_match "${hddtemp }" <= "45.0"}${color green}${hddtemp /dev/sda}º${color}${else}${color red}${hddtemp /dev/sda}º${color}${endif}]],
template1 = [[${if_match "${execi sensors | grep 'Core ' | cut -c16-20}" <= "60.0"}${color green}${execi sensors | grep 'Core ' | cut -c16-21}${color}${else}${color red}${execi sensors | grep 'Core ' | cut -c15-21}${color}${endif}]],
template2 = [[${font FontAwesome}DISK${font}${voffset -2} ${alignr 30} ${fs_used }/${fs_size } (${fs_used_perc }%)]],
template3 = [[${font FontAwesome}${color orange}MEDIA${color}${font}${voffset -2} ${alignr 30} ${fs_used }/${fs_size } (${fs_used_perc }%)]]
}
conky.text = [[
${color grey}Uptime:${color} $uptime
${color grey}Avg. CPU Frequency (GHz):${color} $freq_g
${color grey}Avg. CPU Usage:${color} $cpu% ${cpubar 4}
${color grey}RAM Usage:${color} $mem/$memmax - $memperc% ${membar 4}
${color grey}Swap Usage:${color} $swap/$swapmax - $swapperc% ${swapbar 4}
${hr}
${font FontAwesome}DISK ${font} /dev/sda (${template0 /dev/sda})
${goto 20}${diskiograph_read /dev/sda 30,178 06E9F8 2104FA}${goto 202}${diskiograph_write /dev/sda 30,175 FFFF00 DD3A21}
${font FontAwesome}${goto 20}DISK${font} ${diskio_read /dev/sda}${font FontAwesome}${goto 202}DISK${font} ${diskio_write /dev/sda}
${hr}
${color grey}File systems:${color}
${template2 /}
${template2 /home}
${execpi 1.5 ./conkscript/find-removable-devices.sh}
$hr
${color grey}CPUs:${color}
${goto 20}CPU1: ${cpu cpu1}% ${cpubar 7,50 cpu1} - ${freq_g 1} GHz - ${template1 60 0}
${goto 20}CPU2: ${cpu cpu2}% ${cpubar 7,50 cpu2} - ${freq_g 1} GHz - ${template1 60 1}
$hr
${color grey}Processes:${color} $processes ${color grey}Running:${color} $running_processes
${color grey}Name PID CPU% MEM%
${color lightgrey} ${top name 1} ${top pid 1} ${top cpu 1} ${top mem 1}
${color lightgrey} ${top name 2} ${top pid 2} ${top cpu 2} ${top mem 2}
${color lightgrey} ${top name 3} ${top pid 3} ${top cpu 3} ${top mem 3}
${color lightgrey} ${top name 4} ${top pid 4} ${top cpu 4} ${top mem 4}
]]
脚本：
#!/bin/bash
exec 2>>/tmp/trace.log; PS4=':${BASH_SOURCE}:$LINENO+'; set -x
# Example output:
# /media/me/whatever
# /media/me/whatever2
#
lsblkOutput=$(lsblk -J -o MOUNTPOINT | \
jq -r '.blockdevices[] | select(.mountpoint != null) | .mountpoint | select(startswith("/media"))');
nameToShow=""
deviceMountpoint=""
toConky=""
if [[ "$lsblkOutput" == "" ]]
then
exit
fi
# To array
IFS=$'\n' devices=($lsblkOutput)
for device in "${devices[@]}"
do
# Remove the path...
nameToShow=${device##*/}
# If the name has several words, only show the first one.
nameToShow=${nameToShow%\ *}
# In case the device has whitespaces in the name -> escape them
device=$(printf "%q" "$device")
toConky="$toConky${template3 $nameToShow $device}\n"
done
printf '%b' "$toConky"
插入外部驱动器时的脚本跟踪：
::./conkscript/find-removable-devices.sh:10+jq -r '.blockdevices[] | select(.mountpoint != null) | .mountpoint | select(startswith("/media"))'
::./conkscript/find-removable-devices.sh:10+lsblk -J -o MOUNTPOINT
:./conkscript/find-removable-devices.sh:10+lsblkOutput=/media/acs/TOSHIBA
:./conkscript/find-removable-devices.sh:12+nameToShow=
:./conkscript/find-removable-devices.sh:13+deviceMountpoint=
:./conkscript/find-removable-devices.sh:15+toConky=
:./conkscript/find-removable-devices.sh:17+[[ /media/acs/TOSHIBA == '' ]]
:./conkscript/find-removable-devices.sh:23+IFS='
'
:./conkscript/find-removable-devices.sh:23+devices=($lsblkOutput)
:./conkscript/find-removable-devices.sh:24+for device in "${devices[@]}"
:./conkscript/find-removable-devices.sh:27+nameToShow=TOSHIBA
:./conkscript/find-removable-devices.sh:29+nameToShow=TOSHIBA
::./conkscript/find-removable-devices.sh:31+printf %q /media/acs/TOSHIBA
:./conkscript/find-removable-devices.sh:31+device=/media/acs/TOSHIBA
:./conkscript/find-removable-devices.sh:33+toConky='${template3 TOSHIBA /media/acs/TOSHIBA}\n'
:./conkscript/find-removable-devices.sh:36+printf %b '${template3 TOSHIBA /media/acs/TOSHIBA}\n'
移除外部驱动器时的脚本跟踪：
::./conkscript/find-removable-devices.sh:10+jq -r '.blockdevices[] | select(.mountpoint != null) | .mountpoint | select(startswith("/media"))'
::./conkscript/find-removable-devices.sh:10+lsblk -J -o MOUNTPOINT
:./conkscript/find-removable-devices.sh:10+lsblkOutput=
:./conkscript/find-removable-devices.sh:12+nameToShow=
:./conkscript/find-removable-devices.sh:13+deviceMountpoint=
:./conkscript/find-removable-devices.sh:15+toConky=
:./conkscript/find-removable-devices.sh:17+[[ '' == '' ]]
:./conkscript/find-removable-devices.sh:19+exit
There is an open issue 与 Conky 讨论这个问题。
除了使用可用的 fs_* Conky 命令，我们还可以使用脚本来检查大小和使用百分比，并将信息注入 Conky：
for device in "${devices[@]}"
do
nameToShow=${device##*/}
nameToShow=${nameToShow%\ *}
{ read _header; read size used pcnt; } < <(df -h --output=size,used,pcent $device)
toConky+="${template3 $nameToShow $used $size $pcent}\n"
done
printf '%b' "$toConky"
然后，我们只需要修改Conky配置文件中的template3：
template3 = [[${font FontAwesome}${color orange}Disk:$color$font${voffset -2} ${alignr 30} / ()]]
由于 Conky 本身从不查询设备而只是打印文本，因此在卸载卷时它不会抱怨。
我有一个 bash 脚本来检查我在系统中的可移动设备。
此脚本由 Conky 调用以动态 show/hide 所述设备及其使用和免费 space。
脚本似乎运行良好：
插入新设备时，它会出现在 Conky 中。
并且移除后消失。
但是，在移除设备后，conky 会抱怨以下消息，直到设备再次插回：
conky: statfs64 '/media/acs/TOSHIBA': No such file or directory
有没有办法让 conky 停止抱怨已移除的设备？
Conky 配置（仅相关部分）：
conky.config = {
alignment = 'top_right',
background = false,
border_width = 1,
cpu_avg_samples = 2,
default_color = 'white',
default_outline_color = 'white',
default_shade_color = 'white',
double_buffer = true,
draw_borders = false,
draw_graph_borders = true,
draw_outline = false,
draw_shades = false,
font = 'DejaVu Sans Mono:size=12',
gap_x = 10,
gap_y = 60,
minimum_height = 5,
minimum_width = 5,
net_avg_samples = 2,
no_buffers = true,
out_to_console = false,
out_to_stderr = false,
extra_newline = false,
own_window = true,
own_window_class = 'Conky',
own_window_transparent = false,
own_window_type = 'desktop',
own_window_argb_visual = true,
own_window_argb_value = 120,
own_window_hints = 'undecorated,below,sticky,skip_taskbar,skip_pager',
stippled_borders = 0,
update_interval = 1.5,
uppercase = false,
use_xft = true,
use_spacer = 'none',
show_graph_scale = false,
show_graph_range = false,
template0 = [[${if_match "${hddtemp }" <= "45.0"}${color green}${hddtemp /dev/sda}º${color}${else}${color red}${hddtemp /dev/sda}º${color}${endif}]],
template1 = [[${if_match "${execi sensors | grep 'Core ' | cut -c16-20}" <= "60.0"}${color green}${execi sensors | grep 'Core ' | cut -c16-21}${color}${else}${color red}${execi sensors | grep 'Core ' | cut -c15-21}${color}${endif}]],
template2 = [[${font FontAwesome}DISK${font}${voffset -2} ${alignr 30} ${fs_used }/${fs_size } (${fs_used_perc }%)]],
template3 = [[${font FontAwesome}${color orange}MEDIA${color}${font}${voffset -2} ${alignr 30} ${fs_used }/${fs_size } (${fs_used_perc }%)]]
}
conky.text = [[
${color grey}Uptime:${color} $uptime
${color grey}Avg. CPU Frequency (GHz):${color} $freq_g
${color grey}Avg. CPU Usage:${color} $cpu% ${cpubar 4}
${color grey}RAM Usage:${color} $mem/$memmax - $memperc% ${membar 4}
${color grey}Swap Usage:${color} $swap/$swapmax - $swapperc% ${swapbar 4}
${hr}
${font FontAwesome}DISK ${font} /dev/sda (${template0 /dev/sda})
${goto 20}${diskiograph_read /dev/sda 30,178 06E9F8 2104FA}${goto 202}${diskiograph_write /dev/sda 30,175 FFFF00 DD3A21}
${font FontAwesome}${goto 20}DISK${font} ${diskio_read /dev/sda}${font FontAwesome}${goto 202}DISK${font} ${diskio_write /dev/sda}
${hr}
${color grey}File systems:${color}
${template2 /}
${template2 /home}
${execpi 1.5 ./conkscript/find-removable-devices.sh}
$hr
${color grey}CPUs:${color}
${goto 20}CPU1: ${cpu cpu1}% ${cpubar 7,50 cpu1} - ${freq_g 1} GHz - ${template1 60 0}
${goto 20}CPU2: ${cpu cpu2}% ${cpubar 7,50 cpu2} - ${freq_g 1} GHz - ${template1 60 1}
$hr
${color grey}Processes:${color} $processes ${color grey}Running:${color} $running_processes
${color grey}Name PID CPU% MEM%
${color lightgrey} ${top name 1} ${top pid 1} ${top cpu 1} ${top mem 1}
${color lightgrey} ${top name 2} ${top pid 2} ${top cpu 2} ${top mem 2}
${color lightgrey} ${top name 3} ${top pid 3} ${top cpu 3} ${top mem 3}
${color lightgrey} ${top name 4} ${top pid 4} ${top cpu 4} ${top mem 4}
]]
脚本：
#!/bin/bash
exec 2>>/tmp/trace.log; PS4=':${BASH_SOURCE}:$LINENO+'; set -x
# Example output:
# /media/me/whatever
# /media/me/whatever2
#
lsblkOutput=$(lsblk -J -o MOUNTPOINT | \
jq -r '.blockdevices[] | select(.mountpoint != null) | .mountpoint | select(startswith("/media"))');
nameToShow=""
deviceMountpoint=""
toConky=""
if [[ "$lsblkOutput" == "" ]]
then
exit
fi
# To array
IFS=$'\n' devices=($lsblkOutput)
for device in "${devices[@]}"
do
# Remove the path...
nameToShow=${device##*/}
# If the name has several words, only show the first one.
nameToShow=${nameToShow%\ *}
# In case the device has whitespaces in the name -> escape them
device=$(printf "%q" "$device")
toConky="$toConky${template3 $nameToShow $device}\n"
done
printf '%b' "$toConky"
插入外部驱动器时的脚本跟踪：
::./conkscript/find-removable-devices.sh:10+jq -r '.blockdevices[] | select(.mountpoint != null) | .mountpoint | select(startswith("/media"))'
::./conkscript/find-removable-devices.sh:10+lsblk -J -o MOUNTPOINT
:./conkscript/find-removable-devices.sh:10+lsblkOutput=/media/acs/TOSHIBA
:./conkscript/find-removable-devices.sh:12+nameToShow=
:./conkscript/find-removable-devices.sh:13+deviceMountpoint=
:./conkscript/find-removable-devices.sh:15+toConky=
:./conkscript/find-removable-devices.sh:17+[[ /media/acs/TOSHIBA == '' ]]
:./conkscript/find-removable-devices.sh:23+IFS='
'
:./conkscript/find-removable-devices.sh:23+devices=($lsblkOutput)
:./conkscript/find-removable-devices.sh:24+for device in "${devices[@]}"
:./conkscript/find-removable-devices.sh:27+nameToShow=TOSHIBA
:./conkscript/find-removable-devices.sh:29+nameToShow=TOSHIBA
::./conkscript/find-removable-devices.sh:31+printf %q /media/acs/TOSHIBA
:./conkscript/find-removable-devices.sh:31+device=/media/acs/TOSHIBA
:./conkscript/find-removable-devices.sh:33+toConky='${template3 TOSHIBA /media/acs/TOSHIBA}\n'
:./conkscript/find-removable-devices.sh:36+printf %b '${template3 TOSHIBA /media/acs/TOSHIBA}\n'
移除外部驱动器时的脚本跟踪：
::./conkscript/find-removable-devices.sh:10+jq -r '.blockdevices[] | select(.mountpoint != null) | .mountpoint | select(startswith("/media"))'
::./conkscript/find-removable-devices.sh:10+lsblk -J -o MOUNTPOINT
:./conkscript/find-removable-devices.sh:10+lsblkOutput=
:./conkscript/find-removable-devices.sh:12+nameToShow=
:./conkscript/find-removable-devices.sh:13+deviceMountpoint=
:./conkscript/find-removable-devices.sh:15+toConky=
:./conkscript/find-removable-devices.sh:17+[[ '' == '' ]]
:./conkscript/find-removable-devices.sh:19+exit
There is an open issue 与 Conky 讨论这个问题。
除了使用可用的 fs_* Conky 命令，我们还可以使用脚本来检查大小和使用百分比，并将信息注入 Conky：
for device in "${devices[@]}"
do
nameToShow=${device##*/}
nameToShow=${nameToShow%\ *}
{ read _header; read size used pcnt; } < <(df -h --output=size,used,pcent $device)
toConky+="${template3 $nameToShow $used $size $pcent}\n"
done
printf '%b' "$toConky"
然后，我们只需要修改Conky配置文件中的template3：
template3 = [[${font FontAwesome}${color orange}Disk:$color$font${voffset -2} ${alignr 30} / ()]]
由于 Conky 本身从不查询设备而只是打印文本，因此在卸载卷时它不会抱怨。