Bash 脚本对话框输入框向我的文件添加了额外的字符

如何解决Bash 脚本对话框输入框向我的文件添加了额外的字符

该脚本的目的是 ping 主机并测试端口连接。脚本的第一部分在我输入主机并成功 ping 的地方工作。我有下面的图片 My Input box with no space

我在尝试通过在输入框中输入 www.google.com 80 来测试与 nc 的端口连接时遇到问题。

Here is an example of when I'm seeing issues

因此，当我使用下面的端口进入主机时，我的 tmpfile.txt 中会出现什么。好像添加了额外的字符。

如何防止这种情况发生？

[root@docker-desktop home]# cat tmpfile.txt 
www.google.com 80[root@docker-desktop home]# 

这是我的脚本

#!/bin/bash
# script to troubleshoot an IP or Domain 

INPUTBOX=${INPUTBOX=dialog}
TITLE="Default"
MESSAGE="Something to display"
XCOORD=10
YCOORD=20

# function start
funcDisplayInputBox () {
    $INPUTBOX --title "$1" --inputbox "$2" "$3" "$4" 2>tmpfile.txt
}
# function stop

# function start 
funcDisplayInfoBox () {
    $INPUTBOX --cr-wrap --title "$1" --infobox "$2" "$3" "$4"
    sleep "$5"
}
# function stop

# ping script start
clear

funcDisplayInputBox "Troubleshooter" "What device would you like to troubleshoot?" "10" "20"

if [ "`cat tmpfile.txt`" != "" ]; then
  ping -c 5 "`cat tmpfile.txt`"
else
  funcDisplayInputBox "Error!" "Please enter a IP or Domain" "10" "20"
fi

# if the ping is successfull spit out a success message
if [ "$?" -eq "0" ]; then
  funcDisplayInfoBox "Success!" "We can ping the device" "10" "20" "5"
else
  funcDisplayInfoBox "Error!" "Device unreachable" "10" "20" "5"
fi
rm -f tmpfile.txt
sleep 5
touch tmpfile.txt
# ping part ends here

# netcat part starts here
funcDisplayInputBox "Troubleshooter" "Can we connect to the Device over a specific port?" "10" "20"

if [ "`cat tmpfile.txt`" != "" ]; then
  nc -v -w 5 "`cat tmpfile.txt`"
  sleep 2
  pkill -x nc

else
  funcDisplayInputBox "Error!" "Please enter a IP or Domain and port" "10" "20"
fi

if [ "$?" -eq "0" ]; then
  funcDisplayInfoBox "Success!" "We can connect to the device" "10" "20" "5"
else
  funcDisplayInfoBox "Error!" "Device unreachable" "10" "20" "5"
  exit 1
fi