General :: Redirecting Or Piping 'somecommand?

Oct 31, 2010

kernel 2.6, slackware 12.0mkisofs 2.01If I do 'ls --help|more' all's well. 'mkisofs --help' outputs its help screen, and I can use Shift+PgUp/PgDn to scroll through it. But I can neither pipe it to more or to less, nor redirect it to some file. more is simply ignored. Less, gets into less but only the last screenful is seen. Redirection, i.e. 'mkisofs --help>john.txt' produces an empty file (size= 0).

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Software :: [blah]$ Somecommand - Which Shell Has This Sort Of Layout

Jan 13, 2010

I forget which one it was, but the prompt looked like this:

Code:

[blah]$ somecommand

Which shell has this sort of layout?

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General :: Piping Find To Rsyncrypto?

Aug 21, 2010

I am setting up rsyncrypto to create a backup of my user directory. I read that to exclude directories I need to exclude with find and pipe to rsyncrypto.

I am trying to exclude all .svn directories from getting encrypted and synced.

Here is the find command I'm using. I don't see any .svn directories in the output:

find ~/Documents -type d ( -name .svn ) -prune -o -print

But when I pipe the output to rsyncrypto I see lots of .svn directories getting encrypted.

find ~/Documents -type d ( -name .svn ) -prune -o -print | rsyncrypto -vc --trim=3 --filelist - /tmp/Documents/ Documents.keys backup.crt

rewrite the command to exclude from rsyncrypto any files/folders that have .svn in their path?

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General :: Piping Output Of List To Cp?

May 16, 2011

I have the following code

Code:

ls ~/ | grep ^[[:lower:]]

and would like to take the result of this output and use this as the basis for a cp command to move these files to another folder.

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General :: Determine The Actual Command That Is Piping?

Feb 11, 2011

Let's say I have a bash script called log.sh. In this script, I want to read in input from a pipe, but I also want to know the command used to pipe input into me. Example:

tail -f /var/log/httpd/error | log.sh

In the shell script, I want to know the command tail -f /var/log/httpd/error.

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General :: Piping Video Device Over SSH Or Tcptunnel ?

Aug 11, 2011

I want to attach an analog camera to an old linux computer and directly pipe the /dev/video0 to another computer, where I can use it as a device again (so /dev/video0 should go to /dev/remote0, for example)

(Reason for doing this is that the computer does not have enough power to encode the video)

Is that possible? I've seen people can pipe the data directly from the device over ssh into mplayer, but I need to have some sort of reference point for Zoneminder.

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General :: Details On Piping Information Into Command

Feb 15, 2011

I am sure this has been covered before, however I do not know which terms to sue for searching for this, so I will try and explain it.

I have a program that I run at startup to connect me to my work VPN, specifically the Cisco VPN client. When running the program, it prompts me for my username and password. I would like to be able to automate the login process by piping the username and password into the program everytime it starts up (username and password cannot be passed as arguments to the program)

Something like echo username | echo password | vpn_script

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General :: Piping Data To Multiple Outputs?

Mar 29, 2011

I remember there was a command that would allow me to pipe data to an app and the use the | operator to pipe it into yet another app.

foo fooArg | Iforget app1 | app2

I forget what this command is but it pipes the data from foo into app1 and app2.

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General :: Redirecting Output Of Set -x?

Mar 16, 2011

I have written a script and included the command

Code:
set -x
to see what happening when i run the script

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General :: RDP Port Redirecting From One Debian Through Another?

Mar 16, 2011

I have 2 debian linux PCson the same subnet/IP Range 192.168.100.0, 1st linux PC IP Address is 192.168.100.1, 2nd linux PC IP Address 192.168.100.9. 1st LINUX PC1st linux PC has 2 network interfaces, eth1 connected to Cisco Router, eth0 is for local LAN. No NAT on Cisco Router, iptables firewall on linux PC.2nd LINUX PC2nd Linux has 2 network interfaces, eth1 is connected to netgear router via bridge modereating a ppp0 connection. eth0 is for local LAN. No NAT on Netgear Router,s firewall on Linux PC.The 1st linux PC (192.168.100.1) is set as the gateway on the network. question -In what way can I redirect all RDP connections from the network via the 1st Linux PC (192.168.100.1) through to the 2nd Linux PC (192.168.100.9)

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General :: Redirecting Logs To Some Other Location?

Dec 5, 2009

I need with JBoss application Server.All I have JBOSS running without any issue.All I want is leading the Jboss logs to be deposited at /var/log/jboss.Say, if there are more than one instance running then create a seperate logs like /var/log/jboss-insta1, /var/log/jboss-insta2 etc.

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General :: Redirecting Output From Stderr?

Dec 1, 2010

I have seen a post where someone was explaining the virtuality of stdout and stderr and that it can be redirected with e.g. 2>file.txt but this apparently is not working for me!
I have a CUPS filter with fprintf(stderr,...)

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General :: Redirecting Command Output To File?

Sep 19, 2011

This seems so simple when doing it from command line but I'm not able to accomplish it inside a script. I am trying to put output of following command into a text file:

CMD= mysql -uroot -psecret -e 'SHOW SLAVE STATUS G;'
FIL=~/replication-`date +%F`.txt
MAILTEXT=~/mailtext.txt
touch $FIL
$CMD > $FIL

Where FIL is a variable that contains path of the file to which to output command. I am running this command in a shell script from where I want to email contents of $FIL as attachment using mutt. But I am always getting 0 byte file. Also if I examine in directory the file is of 0 byte length.

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General :: Redirecting Output From A Command Using Bash?

May 10, 2011

I would like to get the command and it's output redirected i have tried using the below but my syntax seems to be incorrect .

<<EOF
$(ls)
EOF

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General :: Redirecting Output Message While Inserting A New Device?

Dec 28, 2010

When inserting/removing a usb device to a board based on linux system, an output is given:

Code:
# mmc1: card 0001 removed
mmc1: new SD card at address 0001

[code]...

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General :: Redirecting Serial Data To An External Devices Using Bluetooth?

Apr 24, 2010

i have the following challenge: i have a Bluetooth GPS device that i have connected to my linux notebook. but now i also want to use the same device (or better, GPS data stream) for my Navigation device (HP Ipaq with TomTom). make an serial port bluetooth service (sending) that my Navigation device can connect to. copy the incoming bluetooth serial port data stream to the outgoing bluetooth serial port.

i have already installed GPSD so i have the TCP port where the GPS data is available for everything on my notebook. but now i also want it to send it out through bluetooth.

1. is there someone out there who already did this?

2. how to make an bluetooth serial port service on Fedora 12?

3. how to copy a data stream from 1 device to the next device?

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General :: Message In Terminal After Redirecting Output And Build Completes?

Oct 9, 2010

I'm not sure about the following behavior so thought I would put it out to see if there is an error I need to resolve, or simply a process that I need explained.I'm also not sure if this is an Ubuntu issue, a Linux issue, or other... but here goes.I ran my "make build" in two different ways; one with just "make build" and one with "make build > output" (so I could review the full script).With just "make build" the process finished and returned to the command prompt.

With "make build > output", after the process had finished (script in output document identical to what was in the terminal with "make build") a new set of data was displayed in the terminal (see below).With the other examples of using "make build > output" the times it would parse something back to the terminal window was when there was an error. As I fixed the errors these breaks back to the terminal window would stop. So I'm wondering if this indicates a new error, but because the "make build" now completes successfully (at least it appears to), I'm wondering if this data in the terminal window is just a behavior related to redirecting the output script using the ">" process and something to do with returning to the terminal once a process completes

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Programming :: Procmail Piping To A PHP Script

Aug 6, 2010

I have my .procmailrc file set up to pipe mail to a simple php script I've written. The only thing the script does at this point is echo back a "hello" message. However, procmail does not execute the script properly.

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Programming :: Piping In Bash Using Python?

Dec 16, 2010

I have a bash script that I want to import in to Python, mainly just to see if I can or not. However in the script I do use some piping of commands into sed to trim it down to what I need. When I tried doing it with the os.system() call, it didn't work. The exact error is

sed: -e expression #1, char 16: unterminated `s' command

However the command that was run can be run in bash without an error. Is there a better/another way to do this? For reference the command is:

Code:

locate -n 1 wp-config.php | sed 's/wp-config.php/
/g' | sed '/wp-config.php/ d' | sed '/^$/ d'

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Programming :: Piping Cat Output To Variable?

Jan 10, 2010

New to ubuntu and shell scripting in general... currently I stored some data into a text file. Right now, I would like to output the data from the text file and store it into a variable. Here's what I have so far:

READ_FILE=$(cat $FILE_NAME)

This definitely works and READ_FILE has the necessary data. However, this command will trigger an output to std output and I will see data on the screen, which is not what I want. I tried:

cat $FILE_NAME | $READ_FILE

and various other variants of this. It does not output to std output but neither does anything gets stored into $READ_FILE. I tried:

cat $FILE_NAME >> $READ_FILE

and it arrived at an error of "ambiguous redirect".

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Ubuntu :: Piping The Output Of The Shell To Notify-osd?

Apr 30, 2010

how would you go about piping the output of the shell to notify-osd?

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Server :: Sendmail Piping From A Text File

Jan 7, 2011

I'm trying to pipe from a textfile to sendmail.The command I'm using on teh sendmail server is:[root@sendmail-server test]# sendmail to-email-address@relay_server-address < test2.txt.I'm doing this because I was doing this from an aliases file just fine until about three weeks ago. The aliases file suddenly stopped working after the relay server received an inordinate amount of email from the From: address and for the To: address.

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Software :: Alternative To Cat For Piping Dvb Output To File?

May 12, 2010

I am looking for an alternative to cat for streaming the output (ATSC) of a dvb card to a file. cat works fine for a bit but there is some internal variable that reaches a size limit and stops it. As evident by the c error "variable has reached size limit" (sorry for the paraphrase I do not have the error in front of me.) That is ok, a co worker who knows c told me the best thing to do is to find some other utility to do this. cat /dev/dvb/adapter0 > test.mpg is what I am looking to replace. how to pipe this into some sort of compression utility.

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CentOS 5 Server :: Procmail: Piping To A Php Script?

Aug 6, 2010

I have my .procmailrc file set up to pipe mail to a simple php script I've written. The only thing the script does at this point is echo back a "hello" message. However, procmail does not execute the script properly.

Here's my script (/home/webs/site.com/scripts/echo.php):

#!/usr/local/bin/php
<?php
echo "hi.";
?>

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Ubuntu :: Piping Command Output Into Grep As Search Term?

Nov 11, 2010

I want to pipe the output of a command into grep as the search TERM, rather than the text to be searched, like this for example

Code:

cat /var/log/auth.log | grep date "&b &d"

so that I only see the lines in auth.log for the current day...but obviously that line doesn't work.... is there a way to do this with grep, or even another command?

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Ubuntu Networking :: Capturing Data On .pcap File And Piping It

Jun 22, 2011

I have a GPS device which sends in data on port number 5000, i am able to capture the data into a pcap file using tcpdump. Now my problem is, i need to pipe the data into a text file as and when data arrives into the pcap file continuously.I did extensive search, but to no avail. been trying to solve this for the past 3 days. I use the following commands to capture and pipe the data, but that happens only once when i issue the command. I want this to happen continuously as and when the data arrives.

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General :: Getting Back To "stdin" After Redirecting A File To A Particular Program?

Nov 22, 2010

I need to achieve a particular effect using bash's redirection facilities.I know that I can redirect a file to some program's standard input:[user@host]$ application < file.txtThe thing is, I'd like to know can I regain control of this program's input after the file content's have been passed to it. In other words, I'd like to run a command similar to the above, and then, instead of the termination of the application, I'd want it to wait for further commands from standard input (keyboard).

As I write this question, it occured to me that I could probably write another application (or a script), that would at first write some data to standard output and then act as echo, like:[user@host]$ stdin_proxy.sh | applicationWould it work, and is there any better way to do so? There are a bunch of Googleable tutorials covering this issue, but they all amount to one advice - "reopen the stdin after the file contents have been read".

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General :: Redirecting STDOUT Of Previous Command To STDIN Of Next Command

Nov 20, 2009

i'm trying to redirect the output of a command to the input of the next command. not sure if i'm going about this the right way. an easy method would be just to store the output of the previous command in a file and redirect input to read that file, but i'm curious to see if this can be done without writing to any files.

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Ubuntu :: Building A Dictionary With A Bash Script - Piping The Output To A File

Sep 5, 2010

i'm building a dictionary with a bash script. it works perfect except i'd prefer something faster. btw i'm just piping the output to a file.

[Code]...

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General :: Redirecting Command Output To Input Of Another Command?

Jul 2, 2011

I want to run gsettings list-schemas (which return a list of about 100 names separated by spaces)and somehow direct each name one at a time as the input to this command:gsettings list-recursivelyI've tried it with awk, and standard | piping and also as a string variable strvar=$(gsettings list-schemas) and using the $strvar as the input butam missing something in between I'm sure like for - while or proper syntax of awk etc

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