General :: Communication Between Shell Script And Binary Files?
Feb 18, 2011
Iam executing a shell script from my code and i need to "establish communication between shell script and my program(i..e.. my script iam executing and code should communicate each other while executing)" in one shot i want to implement IPC`s in shell script..! bye the way iam using system() call to run the shell script.
Today encoders are getting smarter. They can compress Blu ray similar quality in 700MB. It seems header of video file contain info about frame rate, audio/video encoder etc. which can't be guessed. In MPEG audio , every part of file is independently playable. If a movie is binary split into 6 parts & I don't have the first part then it is unplayable.
Code: example ls -rwxrwxrwx 1 root root 280M 2010-12-07 20:23 irn2-cd1.mkv -rwxrwxrwx 1 root root 50M 2011-05-26 13:09 last-50M-cd2 -rwxrwxrwx 1 root root 50M 2011-05-26 13:44 first-50M-cd1 file * first-50M-cd1: Matroska data last-50M-cd2: data irn2-cd1.mkv: Matroska data
I'm running Intrepid and so far have failed to come up with anything other than detailed instructions on how to compile/install Gnome-Shell. Has anyone come up with a binary of gnome shell? It seems I once saw a link to a PPA...or maybe I'm just hallucinating
1. Every Sunday2. Find all files older than 1 day3. Gzip these file4. Tar up the gzipped files into one tar file.5. Name the tarball with a date stamp indicating what day it was created, so we know that week's files are in the file
Before installing Fedora on my laptop I backed up my files onto a USB key. I wiped the hard disk and installed Fedora 12. I copied my files back to my home directory - but all the text files are now binary! Any ideas why this would be or how to fix it??---------- Post added at 10:54 AM CST ---------- Previous post was at 10:35 AM CST ----------Hmm it seems that only some files are binary. Looks like some .tgz files are corrupted too.---------- Post added at 11:02 AM CST ---------- Previous post was at 10:54 AM CST ----------Damn - I wonder if the files weren't completely written to the usb key before I removed it. I don't remember their being a safe mount option in Fedora 10 - but I definitely unmounted it before removing it from the laptop.
i have some files name libbeet.so.3.02 , libpos.so.3.04.I think all is binary files , but i am not able to see the contain of file.is there any script to read the file contain.
I am in verse to understand the serial communication between guest and host.I have just added a serial port through VI Client selecting "Use serial port on host"(host being ESX host).If I am on VM and run :
ll > /dev/ttyS0
I understand that it should get displayed through ESX Host. So On ESX Host, I typed:
i have n files and each file has 5-6 .sql files.Now I need to wrie a shell script that executes all the n files in parellel and for each n file the .sql files sequentially.eg
I'm having a problem with sed syntax. So far I can sed the HiResBoundingBox to capture the images I want and output to pdf. But now ever so often I get an illustrator file that has hexadecimal values at the start and end of the file. Imagemagick powers through this and still creates the rastorized previews I want but the gs dies using the epstopdf script to output the vector files. If I hand remove the hex on both ends of the file, both functions work fine and the file can still be managed in illustrator but if I resave it the hex comes back. It only happens on a few files plus it seems to serve no purpose as the files work perfectly without it. I cannot get the sed statement to work. I've tried a blue million variations with no luck. Copied some that I found, same result.
Start of bad eps file: ADOĆ ^@^@^@5O ^@^@^@^@^@^@^@^@^@UO ^@im^K^@yy^@^@%!PS-Adobe-3.1 EPSF-3.0^M
The way I need it to look: %!PS-Adobe-3.1 EPSF-3.0^M End of file the same: %AI9_PrivateDataEnd^M @ @ just needs to be: %AI9_PrivateDataEnd^M Tried sed -n '/%/,$p' < = blank file sed -i 's/%/,$!d/g' = same sed 's/%/,$!d/g' = same sed 's/%/,$!d' = same
I can't seem to find any proper reference to this.
I am currently implementing an upgrade system for silent upgrades in my application. I am stuck. I need the code to patch binary files. But I can't find a good third party library. My code is in C# so I would prefer a C# library, but right now I would even go as far as using a library in another language and bind it into my C# code. But I just can't find a good patch/diff library. I must be missing something. Surely there must be some libraries out there that give us the ability to patch binary files?
How do you interface with the Linux I2C driver from kernel space? For example, if I had LEDs connected to a GPIO expander on the I2C bus, how would I blink them twice before going down for reset from machine_reset()?
Essentially, I believe I need to call the functions i2c_smbus_write_byte(), i2c_smbus_read_byte(), etc. But these functions require I2C client data that I do not understand how to supply.
I am writing a code which communicates between 2 processes created by fork() statement. Parent reads a file and write the data into a shared memory and sends a signal to the child. The child then receives a signal from the parent to start reading. After finishing the read operation the child sends a signal to the parent asking it to resume its action. Some things are going wrong in my code.
1. segmentation error in memcpy() statement. 2. terminal hangs after running the code. 3. Synchronization problem between processes..
I have hundreds of files in one directory, is there a simple command or pipes of command I can use to append them together? I don't want to use any loops.
How can I replace one instance of a word in a text file with a piece of text that spreads several lines ? I know sed or awk is the way to go but don't know that how I can introduce new paragraphs using these tools
i have to write a shell script that will delete all the .dat files in /var/oracle/etl/incoming which the created date of the file is 7 days before the currrent date.
I have an application which is separated to several parts (processes) communicating over TCP/IP, using a pre-defined port on localhost.Is this always safe? Can some kind of a firewall (corporate, locally installed, Windows firewall, etc) block this traffic? Or can some user settings in the OS that can block this traffic?The OSes I'm interested in are Windows (XP through 7) and Linux (Ubuntu, RHEL, SUSE)
I am very new to linux and I have been given a school project that involves getting my windows pc talking to a linux single board computer that I have. It can be found here. [URL]. I have two bluetooth usb dongles, one to plug into my pc and one to plug into my linux board, I know that both work as I have tried talking to them both using my mobile/cell phone. Also when I plug the dongle into my linux board it recognizes something has been plugged in. However I am unsure where to go from here. I have tried "searching" for the device using my windows pc, but it will only find my cell phone and not my linux board. I also tried mounting it similar to how i would mount a usb drive e.g. mount dev/sda etc. How to setup the linux board for bluetooth communications?
When I try to Sync a Palm Vx to my PC through serial port I get a communication error message in the gadget. My PalmOS Devices application is already configured to use tty0 or tty1 in unsuccessfully trials. I have a lot of information in the addresses, agenda, notes, etc. and do not want to loose that information gathered for years, nor to return to Windows.
As a test, I used a serial mouse in the serial port and It didn't work. I verified the Bios Setup and COM 1 and COM 2 are enabled.
I also checked my system serial support with the following commands:
And messages were OK when compared with typical outputs. My machine is a Pentium 4 CPU 1.6 GHz, in a U8668 motherboard (Award Software International). I have Ubuntu 10.04 LTS with Gnome.
I am new in Linux and don't know Bash yet. I had followed indications from Internet tutorials successfully, but I don't know how to proceed in this case.
I have 2 computers with linux, How can i send with ftp files from computer1 to computer2 them(shell command)? Steps that i think should be done (miss shell commands): find inner ip of computer1 open the ftp port (21) of computer1 (make computer1 ftp server) send file from computer2 to computer1 with shell command
I named a number of files with spaces in them, and I want to replace the space with "_". However, every time I write a command in the shell with the file name (eg "Spring 2011"), the shell doesn't recognize the file or directory. What can I do about this? Is there any way to use the unicode character for a space?
I need to small shell script that I can download hdf data from ftp://e4ftl01u.ecs.nasa.gov/MOLT/MOD13A2.005/first,file name.MOD13A2.A2000049.h26v03.005.2006270052117.hdf each sub folders.next I copy all files with h26v03 to local mashine.