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Full Discussion: While loop is running only for the first iteration
Top Forums Shell Programming and Scripting While loop is running only for the first iteration Post 303013470 by Don Cragun on Wednesday 21st of February 2018 09:45:18 PM
Old 02-21-2018
I don't have ffmpeg installed on my system. What does the final hyphen in the command:
Code:
ffmpeg -i "${FILE_NAME1}.aac" -f caf -

tell ffmpeg to do? With many utilities, that would be a request to have the utility read data from the standard input of that utility (which in this case would be the remaining lines from /tmp/mp4_List) which would cause the while read to hit EOF on the 2nd iteration through the loop.

Your script would also run faster and use fewer system resources if you would change:
Code:
cat /tmp/mp4_List |while read eachF
do
... ... ...
done

to:
Code:
while read eachF
do
... ... ...
done < /tmp/mp4_List

This User Gave Thanks to Don Cragun For This Post:
prvnrk
 

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set_color

set_color(1)                                                           fish                                                           set_color(1)

NAME

       set_color - set_color - set the terminal color

set_color - set the terminal color
   Synopsis
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   Description
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Version 1.23.1                                                    Sun Jan 8 2012                                                      set_color(1)
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