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Old 09-19-2009, 09:20 AM   #1
Mike_Snyder
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Registered: Sep 2009
Location: Merritt Island, Florida, USA
Distribution: OpenSUSE 10.3
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Bash script to convert .mpg files to .avi files?


I'd like to write a bash script to convert all of the .mpg files in a directory to .avi files. The ffmpeg part of this produces the kind of file that I want, but rather than changing the name of the input and output files each time that I run the script, I'd like to automate it. I've tried this script, but I get an error "command not found". I can't figure out what I'm doing wrong. Please help.

#!/bin/bash
cd /home/michael_s/golf_temp
1
for i in 'ls *.mpg' ; do

/usr/bin/ffmpeg.exe -i /home/michael_s/golf_temp/"$i" -map 0:0 -map 0:1 -pass 1 -vcodec mpeg4 -vtag xvid -f avi -b 1100k -vol 384 -mbd rd -s 640x480 -aspect 4:3 -acodec libmp3lame -ac 2 -ab 128k /home/michael_s/golf_temp/"$i".avi

rm -f /home/michael_s/golf/temp/"$i".avi


/usr/bin/ffmpeg.exe -i /home/michael_s/golf_temp/"$i" -map 0:0 -map 0:1 -pass 2 -vcodec mpeg4 -vtag xvid -f avi -b 1100k -vol 384 -mbd rd -s 640x480 -aspect 4:3 -acodec libmp3lame -ac 2 -ab 128k /home/michael_s/golf_temp/"$i".avi

done

fi

quit
 
Old 09-19-2009, 10:37 AM   #2
Meson
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Registered: Oct 2007
Distribution: Arch x86_64
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First of all, please post your script within [code] [/code] tags for easier reading.

Does your script have excute permissions?

Code:
$ chmod u+x scriptname.sh
$ ./scriptname.sh
Or, does it say this?:
Code:
bash: 1: command not found
You have a stray number on line 3

Last edited by Meson; 09-19-2009 at 10:38 AM.
 
Old 09-19-2009, 11:10 AM   #3
metalx1000
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Why do you have the ".exe" at the end of ffmpeg?
 
Old 09-19-2009, 11:32 AM   #4
Mike_Snyder
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Registered: Sep 2009
Location: Merritt Island, Florida, USA
Distribution: OpenSUSE 10.3
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Thanks, guys.

1. The number was just a typo.

2. No, I had not set the script to be executable. :-( I'm new to Linux.

3. I had .exe after ffmpeg because that's what it's called in OS/2, DOS, etc. and that's what I'm accustomed to. The script didn't work with just ffmpeg and the switches, so I changed it trying to make it work.

After fixing the above errors, I now get an error after the script runs ls *.mpg that says, "no such file or directory". That's not true. There are several files in that directory that are listed when I just type ls *.mpg on the command line. I've tried adding the complete path before *.mpg, but get the same error message.
 
Old 09-19-2009, 11:56 AM   #5
Meson
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This is the wrong quote character
Code:
for i in 'ls *.mpg'; do
You want back-ticks (left of the '1' key):
Code:
for i in `ls *.mpg`; do
But really, the more modern thing to do is:
Code:
for i in $(ls *.mpg); do
 
Old 09-19-2009, 01:33 PM   #6
Mike_Snyder
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Registered: Sep 2009
Location: Merritt Island, Florida, USA
Distribution: OpenSUSE 10.3
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Thanks, Meson. It works now.
 
  


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