If Debian based then dpkg -l ffmpeg should to tell you if it is installed. 

Sent from my iPhone

> On Jan 2, 2018, at 8:36 PM, James Mcphee <jmcphe@gmail.com> wrote:
> 
> dpkg makes me think debian or *buntu.  apt-cache search ffmpeg to see packages available that have it in there.  if it were me, i'd probably install dvdrip and use the perl tools that frontend libffmpeg.
> 
>> On Tue, Jan 2, 2018 at 8:24 PM, Herminio Hernandez Jr. <herminio.hernandezjr@gmail.com> wrote:
>> What distro do you use?
>> 
>> Sent from my iPhone
>> 
>> > On Jan 2, 2018, at 7:53 PM, joe@actionline.com wrote:
>> >
>> > When I tried to run this to convert a video:
>> >
>> > cat workshop2.VOB | ffmpeg -i - workit.mp4
>> >
>> > This was the result:
>> >
>> > ffmpeg: command not found
>> >
>> > When searching my system for ffmpeg, I found lots
>> > of entries, but apparently not the right thing.
>> >
>> > Or ... what do I need to differently to get this to work?
>> >
>> >
>> > locate ffmpeg | fgrep lib
>> > /usr/lib/i386-linux-gnu/gstreamer-0.10/libgstffmpegcolorspace.so
>> > /usr/lib/kde4/ffmpegthumbs.so
>> > /usr/lib/kde4/k3bffmpegdecoder.so
>> > /usr/lib/kde4/kffmpegthumbnailer.so
>> > /usr/lib/kde4/kfilemetadata_ffmpegextractor.so
>> > /usr/lib/transcode/export_ffmpeg.so
>> > /usr/lib/transcode/import_ffmpeg.so
>> > /usr/lib/x86_64-linux-gnu/libffmpegthumbnailer.so.4
>> > /usr/lib/x86_64-linux-gnu/libffmpegthumbnailer.so.4.0.8
>> > /usr/lib/x86_64-linux-gnu/gstreamer-0.10/libgstffmpeg.so
>> > /usr/lib/x86_64-linux-gnu/gstreamer-0.10/libgstffmpegcolorspace.so
>> > /usr/lib/x86_64-linux-gnu/gstreamer-0.10/libgstffmpegscale.so
>> > /usr/lib/x86_64-linux-gnu/libquicktime2/lqt_ffmpeg.so
>> > /usr/share/doc/libffmpegthumbnailer4
>> > /usr/share/doc/libxine1-ffmpeg
>> > /usr/share/doc/libffmpegthumbnailer4/changelog.Debian.gz
>> > /usr/share/doc/libffmpegthumbnailer4/copyright
>> > /var/lib/dpkg/info/ffmpegthumbs.list
>> > /var/lib/dpkg/info/ffmpegthumbs.md5sums
>> > /var/lib/dpkg/info/gstreamer0.10-ffmpeg:amd64.list
>> > /var/lib/dpkg/info/gstreamer0.10-ffmpeg:amd64.md5sums
>> > /var/lib/dpkg/info/kffmpegthumbnailer.list
>> > /var/lib/dpkg/info/kffmpegthumbnailer.md5sums
>> > /var/lib/dpkg/info/libffmpegthumbnailer4.list
>> > /var/lib/dpkg/info/libffmpegthumbnailer4.md5sums
>> > /var/lib/dpkg/info/libffmpegthumbnailer4.postinst
>> > /var/lib/dpkg/info/libffmpegthumbnailer4.postrm
>> > /var/lib/dpkg/info/libffmpegthumbnailer4.shlibs
>> > /var/lib/dpkg/info/libxine1-ffmpeg.list
>> > /var/lib/dpkg/info/libxine1-ffmpeg.md5sums
>> > /var/lib/dpkg/info/libxine1-ffmpeg.postinst
>> >
>> >
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> 
> 
> -- 
> James McPhee
> jmcphe@gmail.com
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