Ubuntu :: Can't I Pipe Into The 'file' Command?

May 9, 2010

I'm looking for an mp3 file in the firefox cache folder.I was thinking I could run the command 'find -size +2M' and pipe that output into the 'file' command to tell me which is an mp3, something like thisfind -size +2M | fileBut this doesn't work, what am I doing wrong?This is output Usage: file [-bcikLhnNrsvz0] [-e test] [-f namefile] [-F separator] [-m magicfiles] file...file -C -m magicfilesTry `file --help' for more information.

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Programming :: Orrect Command To Create A Named Pipe File?

Apr 22, 2010

My question deals with me creating a name pipe (file) in the my /group directory called chat.I then have to write a script to read from the named pipe and save data into a file called chat.log until the words End of File are passed to the program.

-When I created the named pipe file (chat) I used the mknod chat p command..Is this the correct command to create a named pipe file? -Then I'm having trouble with my script and how to make it run until the words End of File are entered in. This is what I have so far.

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Programming :: BASH: Get PID Of First Command In Pipe

Aug 11, 2010

I understand that $! is the PID of a command. For example:

Code: #!/bin/bash
myprogram &
echo "PID of myprogram is $!"

I'd like to send the output of "myprogram" to both console and to a log file using the "tee" command but I also want to store the PID of "myprogam". Something like this:

Code: #!/bin/bash
myprogram | tee ./logfile &
echo "PID of myprogram is $!"

The problem is that $! is now the PID of "tee" rather than the PID of "myprogram".

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General :: Pipe The Output Of Date Command?

Jul 21, 2011

I need to pipe the output of date command, to form a command like this:

mycommand -f 20110721

where 20110721 is current YearMonthDay.

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Programming :: Handle A Broken Pipe Exception (SIGPIPE) In FIFO Pipe?

Mar 2, 2011

I've written a simple server in linux used fork to create a FIFO pipe.The server create two FIFO pipe.One for server read data from client and write data to client.Then another pipe for client read data from server and write data to server.When the server read data from a client used server-pipe and then write data to client.But ,if the client no read open the pipe,the server side write will be crashed because of a broken-pipe SIGPIPE. How to check whether the read side is opened?Or,how to catch the SIGPIPE,and then my server will still execute on,not crashed!!

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General :: Pipe Output Of Shell Command Into A New Buffer In Vim?

Jun 29, 2010

How can I pipe the output of a shell command into a new buffer in Vim? The following obviously wouldn't work, but you can see what I'm getting at:

:!echo % | :newtab

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General :: Process The Output Of A Locate Command, Pipe It To What?

Sep 30, 2010

Is there a way to process the output of a locate command on the spot within bash. The output is 3 lines, ex:

Code:
[root@server confluence]# locate .timestamp
/opt/confluence/confluence-persistent/index/.timestamp

[code]....

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Applications :: WinExe Command - Cannot Open Control Pipe Error

Dec 2, 2010

When I give the command:
winexe --interactive 0 --user <user>%<password> //<ip_address> 'cmd /C dir'
I receive the message:
ERROR: Cannot open control pipe - NT_STATUS_ACCESS_DENIED
The source machine is a RedHat EL4 server. The target machine is a Windows XP Home SP3 pc. When I give the same command to another pc all works fine. The other pc is a Windows XP Prof SP3.

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Networking :: PING - Pipe 2 Versus Pipe 3

Apr 10, 2009

I'm doing ping between 2 RH servers through a VPN site2site tunnel and in some times I got in the result pipe 2 and another pipe 3 as I mark it in blue color below.

e.g.

64 bytes from 192.168.1.10: icmp_seq=0 ttl=128 time=0.229 ms
64 bytes from 192.168.1.10: icmp_seq=1 ttl=128 time=0.287 ms
64 bytes from 192.168.1.10: icmp_seq=2 ttl=128 time=0.278 ms

[code]....

What's the difference between pipe 2 and pipe 3 and what's the meaning of it?

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Programming :: Multiple Input Into Seq Command From Pipe - Single Column Unique Numbers

May 13, 2011

Have this script which is reading in a series of files, one at a time with while-do-done loop, each file goes through various greps/awk's where this info is then saved to various files for later use. i.e....

Script is being run on Linux Red Hat,

In one of the grep/awk's the output (currently) are 2 columns (min max), i.e....| awk '{print $1, $2}' | sort -u which outputs (e.g.)

The number of "min max" pairs varies from file to file. Want to output a single column of unique numbers from the min max pairs & get the number of them for input to a file...i.e...

Where <PROCESS> is some process/technique that will generate a single column of integers (increment of 1) to pipe into the next one (sort -u)

i.e. (example from above)

Have tried command seq - only works for single pair input i.e.

Is there any command like seq etc which will output a single column based on a input of min max numbers (increment 1) to pipe onwards to next command?

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Programming :: Pipe Output Of Ls To File?

May 3, 2011

I want to pipe the output of ls in a folder to a file (lets call it test.txt) but when i do so, but when i do ls > test.txt in test.txt there is also test.txt (logical

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Ubuntu :: Get Postfix To Receive Mail From One Address And Pipe It To A PHP File?

Oct 7, 2010

Im running Ubuntu server 10.04 lts

Im trying to get postfix to receive mail from one address and pipe it to a PHP file for a help desk software called Trellis Desk.

They recommended that I use Cpanel but its not free and my boss is not willing to pay for it. I need a free solution.

I know my way around Linux but Im no professional

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Fedora :: How To Pipe Output Of Wine Into File

Aug 19, 2009

I have a bug where WoW under wine is crashing my computer, and I want to get the data from the console, so I want to put it in a file, but I don't know how! None of the piping tutorials online helped at all.

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General :: Read File And Pipe To Grep

May 26, 2011

I'm storing a list of strings in a file and would like to read the file and pipe each line returned to grep which in turn searches a directory for files containing the string.However this is not returning any output.

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Ubuntu Multimedia :: Pipe A Video Feed From Virtual Box To Vlc And Save It As A File?

Aug 9, 2011

is there a way to pipe a video feed from virtual box to vlc and save it as a file? cause if i could then i could save streaming videos from places like hulu and netflix or save bluray movies to a avi file for latter use.

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General :: Nawk - Input From A Pipe And A File At The Same Time

Sep 16, 2010

I am tying to read a file in with nawk whilst trying to take input from a pipe. I've come across the getline option and no matter how hard I try, I can't figure out the correct syntax. What I want to do is to take some input from the pipe and make a comparison with all of the values in a file and print a match.

Code:

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General :: What Is Meaning That File Is Named Pipe (FIFO)?

Jul 12, 2011

What is a pipe? and why a file is a named pipe? I am just learning linux.

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Software :: Pipe Email Using Aliases File Or Script?

Jul 26, 2010

have some problems in doing my project, my project title is ' in investigate into implementation of certification authority with small network ' ( with using Postfix, openSSL ) and i have builded up two different networks using debian and after that i need to make a mail server, so i configured Postfix and made a mail server, i can send and receive emails on both networks. now i need a shell script on received emails using Postfix, like mail is coming from outside then will go to pipe and there should a script in bash, that will run and check the email and deliver to others, or throw it away some thing like that... here are some links where i was looking

[URL]

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General :: Feed Text To File Editor From Named Pipe

Apr 24, 2011

Does any one know how can i input text by reading from a named pipe to any popular GUI based text editor?

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Programming :: Move Line Of Pipe Delimited Flat File If Field 27 = Sold?

Sep 26, 2010

I have a pipe delimited flat file, field 27 is price. I would like to move items marked sold to a new file every couple months.

awk -F"|" '$27 == "SOLD" {print $0}' awktest2.data >> awkout2.data

Allows me to write line to new file but I need to delete the original line, I also want to make sold case insensitive tried [Ss][Oo] with no luck

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General :: Append Command Output To File By Giving Command In Terminal?

Jul 3, 2009

I am using openSUSE 10.3.When I install software from tarball then to record time required I send output of date to beg.txt(when installation begins) and end.txt (when installation finishes).How can I append output of date to a file so I don't need two files?

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Ubuntu :: Convert A .ods File To A .csv File Via Command Line?

Oct 28, 2010

I 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?

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OpenSUSE :: .jar File Runs Fine In Command Line But Not From File System?

May 3, 2010

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.

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General :: Convert An HTML Email Saved As A Text File To A PDF File From The Command Line?

Aug 23, 2011

I 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)?

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Software :: Check The Contents Of A Text File For A Specific String And Remove It From The File From The Command Prompt?

Oct 14, 2010

I want to be able to check the contents of a text file for a specific string and remove it from the file from the command prompt. I would basically be searching through a number of files and if a specific string is found I would like it removed automatically. pretty much a find and replace, were the replace is nothing. any one got any ideas on how you would do this. I already have the search part sorted just need to be able to remove the string I don't want from the multiple files.

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General :: Retrieve The File Which Got Removed From File System Using Rm Command?

Nov 23, 2010

As in windows all the delted items will got to RecycleBin is there any such thing in linux.

(Or)

Can we retrive the file which got removed from file system(using rm command)

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Ubuntu :: Using Pipe For Shortcuts?

Nov 28, 2010

I'm trying to set a shortcut using the pipe key ("|", this one...) like "<Ctrl>|" and no luck. Is there any special way to set this like <Ctrl><Pipe> or <Ctrl>|| or something?

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Programming :: Bash Ambiguous Redirect - Redirect One Command Output Which Will Be Treat As A Content Of File For Another Command?

Mar 9, 2011

I am trying to grep multiple numbers from file, grep does have the -f option for that.

Code: grep -f <`seq 500 520` /etc/passwd I know this could be done with

Code: for i in `seq 500 520`; do grep "$i" /etc/passwd; done But my question is fare more behind this example. It is possible to redirect one command output which will be treat as a content of file for another command ?

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Ubuntu :: Pipe And Kill Pidof Output?

Jan 13, 2010

I want to kill a specific program with the kill -9 pid in a hole command. How do I pipe and kill the output from this command? pidof transmission |

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Ubuntu :: Can't Type The Backslash Character (nor The Pipe)

Dec 9, 2010

I'm a UK based user and using a standard UK keyboard (Coleman based layout I think) although I have a backslash (to the left of the "Z", I can't type the character in any application. This is very frustrating when typing FQDNs amongst other things. How can I enable the backslash key for use with UK keyboard layouts. BTW I have tried all of the UK keyboards suggested in the keyboard layout dialogue

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