cron 作业没有完成该过程？
我有一个 ruby 程序，可以使用 ffmpeg 将视频转换为 MP4 格式。我使用 crontab 每 15 分钟运行一次 ruby 程序。 crontab实际上运行的是ruby程序，但是文件的转换并不完整。该过程在完成转换之前停止。我的测试示例代码如下。
def convert(y)
system "ffmpeg -i #{SOURCE_FOLDER + LOCATION_SOURCE}/#{y} -acodec libfaac -ar 44100 -ab 96k -vcodec libx264 #{DEST_FOLDER + LOCATION_DEST}/#{y}"
end
SOURCE_FOLDER = "/home/someone/work/videoapp/public/"
DEST_FOLDER = "/home/someone/work/videoapp/public/"
LOCATION_SOURCE = "source"
LOCATION_DEST = "dest"
files = Dir.new(SOURCE_FOLDER + LOCATION_SOURCE)
files.each do |x|
convert(x)
end
如果我在控制台中手动运行此代码，则它可以正常工作。
I have a ruby program to convert video to MP4 format using ffmpeg. And I'm using the crontab to run the ruby program every 15 minutes. crontab actually runs the ruby program, but the conversion of the file is not complete. The process is stopped before completing the conversion. My sample code for testin is below.
def convert(y)
system "ffmpeg -i #{SOURCE_FOLDER + LOCATION_SOURCE}/#{y} -acodec libfaac -ar 44100 -ab 96k -vcodec libx264 #{DEST_FOLDER + LOCATION_DEST}/#{y}"
end
SOURCE_FOLDER = "/home/someone/work/videoapp/public/"
DEST_FOLDER = "/home/someone/work/videoapp/public/"
LOCATION_SOURCE = "source"
LOCATION_DEST = "dest"
files = Dir.new(SOURCE_FOLDER + LOCATION_SOURCE)
files.each do |x|
convert(x)
end
This code works fine, if i run it manually in the console.
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我的第一个猜测是它在“点”目录上快要死了。在 Unix 中，每个目录/文件夹中有两个目录：“.”和 ”..”。您需要在脚本中专门跳过这些内容：
-- 或者 --
专门查找您想要的任何文件类型
更新：20110401
将 Unix 重定向添加到 crontab 条目以查看输出是什么
<代码> * * * * * /your/program/location/file.rb 1> /some/output/file.txt 2>&1
My first guess is that it's dying on "dot" directories. In Unix there are two directories in every directory/folder: "." and "..". You'll either need to specifically skip those in your script:
-- OR --
Look specifically for whatever filetypes you are wanting
Update: 20110401
Add Unix redirects to the crontab entry to see what the output is
* * * * * /your/program/location/file.rb 1> /some/output/file.txt 2>&1