语法错误：bash 脚本中的“fi”意外（期望“then”）
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Syntax error: "fi" unexpected (expecting "then") in bash script
提问by Kwiatkowski
I try to do the script:
我尝试做脚本：
#!/bin/bash
IP='192.168.1.1'
fping -c1 -t300 $IP 2>/dev/null 1>/dev/null
if [ "$?" = 0 ]
then
echo "Host found"
else
echo "Host not found"
fi
and i turn it:
我打开它：
pi@raspberrypi ~ $ sh /home/pi/sh/test.sh
/home/pi/sh/test.sh: 9: /home/pi/sh/test.sh: Syntax error: "fi" unexpected (expecting "then")
where is the problem?
问题出在哪儿？
回答by Diego Torres Milano
You can try
你可以试试
$ dos2unix /home/pi/sh/test.sh
and run it again.
并再次运行它。
回答by tivn
Most probably this is because carriage-return \rin your script. Try run this command to clean-up your script. Just run once. Original file will be backed up.
这很可能是因为\r脚本中的回车。尝试运行此命令来清理您的脚本。只跑一次。将备份原始文件。
perl -pi.bak -e 's/\r$//' /home/pi/sh/test.sh
回答by Andrea Mauro
If you are editing the script file with Notepad++ on windows you can convert the EOL from the program menu with
如果您在 Windows 上使用 Notepad++ 编辑脚本文件，您可以使用以下命令从程序菜单中转换 EOL
Edit => EOL Conversion => Unix (LF)
