Does anybody know how to get attributes for a video file from the command line? For instance I'd like to get the video file running time. I've looked all over and I can't find out how to do this; the "file" command shows some data but not running time. I'm sure there has to be a way.
View 2 RepliesI have a list of domains in "domains.txt" , and I wanted to put an "nslookup" in front of each line and run it.. However I could not figure out a command for it.. Any ideas how to do this simple task?
View 7 Replies View Relatedi've gotten my fedora 12 to the point where i can run python3 scripts from command line and can call up python 2.6.2 idle with the command 'idle' from command line. what command will call up python3 (3.1.2 to be exact) idle?
View 5 Replies View RelatedHow to open a file using command line in terminal and edit the code within it ?code...
View 6 Replies View RelatedI'd like show a certain line or lines of a file with context, kind of like a unified diff, on the command line in Linux:
$ (something) -l 154 stuff.py
150: def foo(bar):
151: """
[code]....
I wanted to share this nifty technique I came across for capturing video using the command line. The problem: I have a bunch of old VHS tapes (remember those...?) and need to get them digitized. I have a VCR, and a Dazzle Hollywood DV Bridge which captures video to DV over Firewire (IEEE1394). I first tried using Final Cut Pro, but it wouldn't capture, perhaps because it expects a controllable DV camera, and the Dazzle isn't a DVC device. I then tried my other favorite video editing app, Kdenlive, but it seemed to have the same problem.
I took a quick stab at the other common editors in the repositories (Kino, Openshot, etc.), but no luck with any of them. Then I remembered the dvgrab command, and gave that a shot and it worked, giving me a nice .dv file. However, DV makes pretty big files, which I wanted to compress down to something more manageable. Since I was going to be digitizing hours and hours of tapes, it would be great if I could compress while capturing. A little more googling and I had the answer - you can pipe dvgrab directly into ffmpeg! Here's the command:
Code:
dvgrab -format dv1 - | ffmpeg -f dv -i - -b 2000k -ab 512k -y output.mov
the first part starts the capture, in DV1 format, and outputs it to a pipe file. usually you give dvgrab a filename, like
Code:
dvgrab -format dv1 capture.dv
the second part does the encoding:
-f dv: use DV format
-i -: input from the pipe
-b 2000k: video encoding bitrate of 2000k/sec, high quality
-ab 512k: audio encoding bitrate
-y: overwrite file if it exists
I didn't set the codec explicitly, for Quicktime it defaults to MPEG4. This worked great, capturing a 2-hour tape into a high-quality quicktime around 2GB. But I also wanted to be able to view the capture while it was going. Since I left the field monitors and audio splitters at the office, I had to figure out how to do this in software. Turns out that the "tee" command does exactly what I needed - the shell never ceases to amaze! Here's the full command:
Code:
dvgrab -format dv1 - | tee >(ffmpeg -f dv -i - -b 2000k -ab 512k output.mov) >(playdv --disable-audio --no-mmap)
tee uses the
Code:
>(command)
syntax to pipe simultaneously to multiple processes. The only thing that didn't work was audio playback, which was choppy and introduced errors in the capture file. I think a little tweaking with the capture rates could fix that.
I'm trying to install Ubuntu Desktop 10.10 on an Intel Atom mainboard (Intel D945GCLF2) with CRT that has been running Ubuntu 9.x previously.
Both, Desktop live CD / installer and alternate install CD cause the screen to go black (and the status LED blinks).
I was able to get a bit further into the boot process with nomodeset as parameter with the Live CD, unfortunately I can't pass GRUB any parameters now that I have used the alternate Install CD by pressing 'e', it just boots.
So now I have Ubuntu installed, I get a terminal with CTRL-ALT-F1 but I don't know what I need to do now or how to adjust resolution or video settings from command line.
I want to take consecutive screenshots of a video using command line operations but I can't seem to find accurate documentation on different websites.Does anyone know how to do this using vlc, totem or another program?I've used ffmpeg as well, but then reencodes and splits the video file. I just want to take consecutive screenshots.
View 7 Replies View RelatedIs there a command line utility to tell me about what's inside a video file? Say I have a .mpg file. I want to know about the video stream and the various audio streams, the codec used for the video stream, the bitrate of the video stream, and so on.
View 5 Replies View RelatedI need your assistance before I start reloading software.I have a MP3 player which is owned by Root. I have tried the following:
- in terminal - chown as both my usual log-in and root...operation not permitted I ran chown as both su, root, and myself
- In Nautilus - I can't change any of the file attributes..again opening it as any of the users above.
I used to be able to copy files over to the MP3 player but not the Sandisk..but not I can't copy or do anything to the files on both.
My .jar file needs and uses some files in the same directory it's in (everything, including the jar was unzipped into said directory). It runs perfectly when I do java -jar file.jar in the command line, but there's trouble when I double-click the file when running from the file system manager. I've tried a custom command under properties ie java -jar, but the problem is that the .jar file doesn't seem to be able to use any of the files in the same directory. When running, the jar can't find any of the files that it needs.
View 5 Replies View RelatedI need to be able to convert HTML email messages saved as text files (.eml or .msg) to PDF documents, one PDF per email, retaining formatting and images.
Are there any Linux tools that will allow me to do this from the command line (so it can be scripted)?
I have a MP3 player which is owned by Root. I have tried the following: in terminal - chown as both my usual log-in and root operation not permitted. I ran chown as both su, root, and myself. In Nautilus - I can't change any of the file attributes again opening it as any of the users above. I used to be able to copy files over to the MP3 player but not the Sandisk but not I can't copy or do anything to the files on both.
View 1 Replies View RelatedGS 8.71 on f11. Using the eps2eps tool, some of a files colors get changed to RGB from CMYK. I see no flagging capable of changing this behavior. Is there another way or something I'm missing? Or is there a better place to ask about Ghostscript?
View 1 Replies View RelatedI would like to convert a .ods file to a .csv file via command line on a server running ubuntu with no graphical interface.
xls2csv does a perfect job on xls files; is there something similar for ods files?
is it possible to open a file with a terminal without specifying the application it will use ? In fact I mean what is the equivalent of the double click on the file manager for a terminal.
View 9 Replies View RelatedI'm trying to run a perl script found at http://wiki.scribus.net/index.php/Web_optimised_PDF.
running "compress-newsletter.pl input.pdf" produces the result:
-bash: compress-newsletter.pl: command not found
I have some large log files that I would like to search for a specific text via command line in the file. I know I can open the file in GUI but is there command that I can run against the file path then make it search in the file in command line?
View 7 Replies View RelatedLet's say i have a link to a file http://www.domain.com/dir/myfile.ext
Is there a command line tool that will allow me to download this file. I'm looking for something like: download <http address> ... is there anything that simple?
I would like to insert a line into the /etc/sysconfig/iptables with a command like sed or with any script. How can I insert this line:
-A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT
but under the line "-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT"
Running: Red Hat Enterprise Linux Server 5.2 (Tikanga) I need to be able to automate transferring a few files over from one server to another using scp or the sftp protocol. I have received a text file which looks like a key file along with username and passphrase information for the target server in question.
Instructions were given to me to import the provided text file in puttyGen then save the imported key as a private key to be used by scp or sftp. My assumption is this is for windows utilities, which I am not using. My frustration comes in trying to automate logging into this server via sftp or scp to automate some file transfers. I am asked for a password every time because the public and private key methods failed to find my keys. How can I call scp or the sftp utilities and use the provided key file (the one I generated using puttyGen or the original one provided to me) to login to this server? I've tried taking the generated ppk file from puttygen and adding it with the ssh-add command but that still did not work.
I am using an awk command to print a line from a cvs file.the awk command includes an if statement that filter the output-lets say i want to print all the lines that the price field is greater than 30.i have it working when i put the parameters myself.. but when i try to send them with vars it wont work..i am sending the sign of the if statement - can only be: == , < , >it looks like this:
cat file.csv | awk -v sign=">" -v field="2000" '{if($3 sign field) printf "%-12s%-12s%-12s%-12s
",$1,$2,$3,$4}' FS=,
the bold part is the problem , because when i put the sign parameter myself t works great.. i guess its a chars issue but i cant spot it
I want to download a file from the Linux command line. Basically I'm using ssh and I'm trying to download a file to my file system on my laptop. How can I do that from the command line?
View 3 Replies View RelatedHow can I create multipart rar file in Linux using the official console rar client?RAR 3.90 Copyright (c) 1993-2009 Alexander Roshal 16 Aug 2009Shareware version Type RAR -? for helpI want a multipart rar with each part size being 150 MB.
View 1 Replies View RelatedHow to split a tar file into smaller parts at file boundaries?
How can I create a multipart tar file in Linux?
I have a jar, and I need to replace a class in it, at this moment, I can only open it with "archive manager" and then drag and drop the new compiled class into the jar, but I think this is really boring, if I can do with with just a command ?
View 1 Replies View RelatedWhat's a Unix/Linux one-liner that will let me delete all but the most recent N revisions of each file?
I've got a bunch of files with revision numbers as part of a legacy asset-management system:
bar.r7.js
bar.r8.js
bar.r9.js
bar.r10.js
bar.r11.js
[Code]....
I want to keep the last three of each, so in the above list the command would delete bar.r7.js, bar.r8.js and foo.r1.js.
I've got files in a directory as follows:
1.png
1_thumb.png
1-1.png
1-1_thumb.png
[code]....
I want to list all the files that don't have a copy with the same filename with -1 somewhere in it. So, in the example above, the results would be 3.png.
NB: the file and its copy with "-1" in it will be the same filesize, if that helps.
i need a good lesson in using file manipulation tools on the command line
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