从 bash 脚本中通知发送

Question

我想在后台运行的 bash 脚本中使用 notify-send 通知用户脚本的进度。更具体地说，这是一个脚本，当插入 USB 闪存驱动器并使用 ClamAV 运行扫描时，它会自动运行。

特别是第 30 行和第 66 行。到目前为止，我没有任何运气。有人可以给我一些 advice/help 吗？谢谢

#!/bin/bash
#doOnUSBinsert_0.2.sh
#Author : Totti
# Make it executable by running 'sudo chmod  x doOnUSBinsert_0.2.sh'


if ! [ -f /etc/udev/rules.d/80-doOnUSBinsert.rules ]
then        # rule not added
   cp "[=11=]" /usr/bin/doOnUSBinsert
   chmod u x /usr/bin/doOnUSBinsert

#   echo 'SUBSYSTEM=="usb", ACTION=="add", RUN ="/path/to/script.sh"' | sudo tee     /etc/udev/rules.d/80-clamscan.rules
   echo 'SUBSYSTEM=="usb", ACTION=="add", RUN ="/usr/bin/doOnUSBinsert & "' | tee     /etc/udev/rules.d/80-doOnUSBinsert.rules
   if  [ $? -eq 0 ]
   then
     echo 'Rule Successfully added. See file "/usr/bin/doOnUSBinsert" if you wish to edit the command'
     exit 0
    else
     echo 'ERROR while adding rule'
     exit 1
   fi
fi



lfile="/tmp/doOnUSBinsert.log"     # udev
lfile2="/tmp/clamscanFromUdev.log"   # clamscan
lfile3="/tmp/doOnUSBinsert_mount.log"   # mount

notify-send "USB SCAN ON INSERT" "Currently scanning with ClamAV"

main ()
{
sleep 12  # let the partitions to mount

   #cat /proc/$$/environ | tr '�' 'n' >> /tmp/udevEnvirn.txt
echo "found $ID_SERIAL"   >> "$lfile"
  cat /etc/mtab | grep "^$part_c"   >> "$lfile.3"

if [ "$ID_SERIAL"x = 'x' ]
then
 echo "Exiting on empty ID_SERIAL"   >> "$lfile"
 exit 1
fi

#Eg: ID_SERIAL --> /dev/disk/by-id/usb-sandisk....42343254343543
#i=0
echo 'searching partitions'   >> "$lfile"

for partitionPath in  $( find /dev/disk/by-id/ -name "*$ID_SERIAL*part*" )
do
  echo "current partition = $partitionPath"   >> "$lfile"
 # part[i  ]="$( readlink -f "$partition" )"        # Eg Output: /dev/sdb1     , /dev/sdb2
  part_c="$( readlink -f $partitionPath )"   
  mpoint="$( cat /etc/mtab | grep "^$part_c"  | awk '{print }' )"

  echo "partitionPath= $partitionPath, part = $part_c, mountpoint=  $mpoint"  >>     "$lfile"

  echo "Scaning -->  $mpoint"  >> "$lfile.2"
  ############################################
  clamscan -r --bell "$mpoint"/*  >> "$lfile.2"
  #############################################
done
}

notify-send "USB SCAN ON INSERT" "Finished scanning with ClamAV"

main &
echo ______________________________________  >> "$lfile"
exit 0

Answer 1

根据您运行设置脚本的方式，它可能无法访问显示变量。在命令之前尝试运行ning export DISPLAY=:0.0。

如果您运行将脚本作为不同的用户，即 root，那么您可能还需要运行它作为 su - <logged in user> -c notify-send ...（我通常不需要这样做，但我记得有一次不得不这样做——但我不记得当时我使用的是哪个发行版或版本。）

Answer 2

我是 linux 世界的新手，但在为类似项目寻找解决方案时，我发现了 THIS

Tip: An overview on the available icons can be found here. To send desktop notification from a background script running as root (replace X_user and X_userid with the user and userid running X respectively):

sudo -u X_user DISPLAY=:0 DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/X_userid/bus notify-send 'Hello world!' 'This is an example notification.'

希望这对其他人有所帮助。

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