CentOS Shell 脚本 elif 错误

Question

我无法让这个脚本工作，returns 第一个 elif 出错，有人能帮我吗？

#!/bin/sh

/var/www/vhosts/website/httpdocs/ffmpeg -i  -s qvga -vcodec libx264 -acodec aac -strict experimental -ab 64k -ac 2 -ar 44100 -f mp4 -b 384k -r 25 -movflags faststart com_
if [ "" = "Portrait" ]
then
/var/www/vhosts/website/httpdocs/ffmpeg -i  -vf 'transpose=1' -y -strict -2 

elif [ "" = "LandscapeRight" ]
then
/var/www/vhosts/website/httpdocs/ffmpeg -i  -vf 'vflip [a]; [a] hflip' -strict -2 -y 

elif [ "" = "PortraitUpsideDown" ] &&  [ "" = "Iphone" ]
then
/var/www/vhosts/website/httpdocs/ffmpeg -i  -vf -filter_complex 'transpose=2; vflip [a]' -y -strict -2 

elif [ "" = "PortraitUpsideDown" ] &&  [ "" = "Android" ]
then
/var/www/vhosts/website/httpdocs/ffmpeg -i  -vf 'transpose=3' -y -strict -2  
fi


/var/www/vhosts/website/httpdocs/ffmpeg -itsoffset -1 -i  -vcodec mjpeg -vframes 1 -an -f rawvideo -strict -2 
echo

我这样调用文件：

sh test.sh /var/www/vhosts/website/httpdocs/public/upload/album_detail_files/6501/ 201503131239571426307580.mp4 com_201503131239571426307580.mp4 LandscapeLeft_com_201503131239571426307580.mp4 1_20150313123957snap.jpg LandscapeLeft Iphone

错误是：

test.sh: line 7: syntax error near unexpected token `elif'
'est.sh: line 7: `elif [ "" = "LandscapeRight" ]

非常感谢 ;)

Answer 1

test.sh: line 7: syntax error near unexpected token `elif'
'est.sh: line 7: `elif [ "" = "LandscapeRight" ]

看到单引号是如何覆盖第一个字符的了吗？这表明你有 CRLF 行结尾，你的实际代码是：

elif [ "" = "LandscapeRight" ]\r

通过 dos2unix

尝试运行您的脚本

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