Programming :: Parameter Passing: Parameters In General Info Requested

Apr 26, 2010

Ive read a few books and a lot of tutorials on C but can't find this topic explained in a deliberate way.I can find bits and pieces but nothing thorough.

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Programming :: Parameter Passing In The HTML?

Jun 11, 2010

If I have the following links in HTML


<a href=lang.php?lang=cymraeg>Cymraeg</a>
<a href=lang.php?lang=english>English</a>

and lang.php has a link to page2.html, how do I pass on the value of the lang parameter from lang.php to page2.html? The value needed is the one passed in to lang.php.

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Programming :: C++ Passing Pointer Variable As A Reference Parameter

Jan 21, 2011

Say, i have an imaginary std library function, which I want to call.

void std_lib_func(ObjectType *param);

Now in my c++ program, I have a main() function, and I will like to call a customized function (which will in turn call the std lib function) from the main function, as below:

int main()
ObjectType *aobj;

I tried the below but get an error that the std lib function is expecting a ObjectType* param, not aobj. How should I work this out.

void customized_func(ObjectType aobj)

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Programming :: Find And Replace Using Passing A Parameter To Said Command?

Apr 9, 2010

I am trying following script can I do this or is there a way to do find and replace the replacing word is dynamic input by user

echo -n "Enter name:"
read RP_USER
sed 's/text1/$RP_USER/' /home/user/file1 > /home/user/file2

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Programming :: Passing Parameters From C Code To Bash Script

Apr 16, 2011

I get no print to stdout on screen from the C code.Does bash somehow block or mask it?I get print from bash. I get this error in the non-test bash script like: let "rdval = $rdstr"syntax error: operand expected (error token is " ")The let command prints rdval= but I presume this is due to the printf test statements getting in the way.I am getting no compile errors. Why does the C code not print the values specified?

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Programming :: Passing Parameters From Cgi Script To Html Page?

Jan 17, 2010

I have the following problem. I have my script /usr/lib/cgi-bin/login.cgiand two page in /var/www, home.html and welcome.html.When I log in /var/www/home.html with email and password, then login.cgi to extract exact user informations from mysql. Now I'd like start welcome.html page from login.cgi and passing user informations trought parameters

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Programming :: C Language Data Structure/ Algorithm Info Requested

Apr 2, 2010

Does anyone know of a C Language Data Structure Tutorial? I have not been able to find anything much to speak of myself.

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Programming :: Passing Info From Mac To Network Layer

Dec 30, 2008

I want to implement a cross layer approach. I want to pass the network information such as delay from the MAC layer to Network layer. Can you tell me the way I am new to this. I am using linux (fedora). I think some system call will do the trick. Correct me if I am wrong. (I want to implement QoS matrices)

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General :: Passing Parameters To Script ?

Mar 13, 2010

I have the following bash script:


Which has the name '' and works just fine.

However, i whish to be able to give the url (or any other url) as a parameter when i run the script like this: $ [url]

What should i change in my code? i have never tried passing parameters to scripts before.

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Installation :: Grub2 Not Passing Parameters To Kernel?

Sep 8, 2010

I have installed grub2 on a flash drive to boot some os's that I want to carry around. But in grub.cfg when i put this:

Code: menuentry "BackTrack Persistent" {
set gfxpayload=1024x768
linux/backtrack/boot/vmlinuz BOOT=casper boot=casper persistent rw quiet
} it does exactaly the same thing as this


I'm thinking of filing a bug report but I want to make sure i'm not doing something wrong first.

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Server :: Shell Scripting Command Line / Getting Error While Passing Parameter?

May 6, 2011

I am very new to shell scripting.How does one pass a command-line parameter to a shell script?for the below program
mount -t cifs -o user=ramkannan,password=Linux123@ // /MT
cd /MT/test
date=`/bin/date "+\%Y-\%m-\%d-\%H-\%M-\%S"`
mysqldump -uroot -pram2@ employeedb > $date.sql
gzip $date.sql

I want to pass parameter for everything,i tried in google and did but iam getting error while passing parameter to all

mount -t cifs -o user=$1,password=$2 // /MT
cd /MT/test
date=`/bin/date "+\%Y-\%m-\%d-\%H-\%M-\%S"`
mysqldump -uroot -pram2@ employeedb > $date.sql
gzip $date.sql

i was getting error while passing parameter to all.

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General :: Don't See -k Parameter In Recent Modprobe (missing Parameter)

May 4, 2010

I got the following modprobe scripts modprobe -k -q streams what does the -k parameter mean?. is it exist in older modprobe? I don't see -k parameter in recent modprobe.

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Programming :: O_SYNC Parameter In Open Command?

Jul 9, 2010

I have a small board that has a static ram board attached to it. I have two different programs that each write to a byte of memory in the static ram board. I get a file descriptor to the device memory with the following code:

int phymemfd;
phymemfd=open("dev/mem, O_RDWR | O_SYNC);

This opens the physical memory for both reading and writing. Next I get a pointer to the beginning of my ram board.

volatile unsigned char *novram;
novram = (unsigned char *) mmap(0, getpagesize() * 31,
PROT_READ|PROT_WRITE, MAP_SHARED, phymemfd, 0x11AA0000);

I do this same code in two processes that are both running and this works fine. Now, if I take out the O_SYNC parameter, one of the programs gets into some sort of weird state.My understanding of the O_SYNC parameter is that it cause the process accessing the memory location to block, not allow another process to run, until the first process has finished writing to it.I can see that if my program doesn't block, I wouldn't really know what was in the memory location, but would I can't see how it would cause any other type of system problem.

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Fedora Networking :: Ftp Connecting - Error "The Requested Name Is Valid, But No Data Of The Requested Type Was Found"

Sep 30, 2009

i used my windows box to connect to ftp(fed box) and i keep getting an error saying "The requested name is valid, but no data of the requested type was found." does anyone know why i cant connect?

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Programming :: How To Run External Exe With Parameters

Mar 8, 2010

Specifically I'm trying to run xmacro from within a c program. If I were to run it from the terminal I would do it along the lines of Code: xmacroplay :0.0 < script_file.txt, but I want to run it from my c program. I'm fine with my c program running it from the terminal if that's possible and easier but I'm guessing there must be a better way.

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Programming :: Bash Script Position Parameter Does Is Not Parsing '$1'?

Apr 8, 2010

bash script:

$ bash --version
bash --version
GNU bash, version 3.1.17(2)-release (i486-slackware-linux-gnu)
Copyright (C) 2005 Free Software Foundation, Inc.

[serv:]$ cat


The question is, how to config it works through 'function cool {}' or cool() {} with position parameter

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Programming :: Capture Parameter From Iframe To Main.html?

Aug 28, 2010

I have the following HTML code in main.html:


<tr align="right">
<td width="50%">


I'd like capture with capture_profile() function in createproject.html a value into main.html page. How can I solve this problem with javascript?

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Programming :: What Parameter Should I Use For DestAddr.sll_pkttype And Sockopt.mr_type?

Sep 4, 2010

I want to send my data from my custom board to the computer.I write two codes for each device.I use Linux PF_PACKET socket, I can successfully send my packets and I can capture them by ethereal too.But I cant receive them by my own code. My code can receive other packets but not mine!Here is the code I used to receive packets. Where is the problem?what parameter should I use for �destAddr.sll_pkttype� and �sockopt.mr_type�?

struct sockaddr_ll destAddr;
struct packet_mreq sockopt;
struct ifreq f;[code].....

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Programming :: Pass By Reference A Parameter Without Assigning A New Object?

Dec 28, 2010

How can I pass by reference, a parameter, without assigning a new object? In my first example, var = "changed" creates a new local object. In the second, mylist.append will affect the reference target. How to i achieve the same effect with example 1?

var = "unchanged"
def print_string( var ):


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Programming :: Passing Class To Itself (CPP)?

May 18, 2010

I'm struggling with the issue of passing a vector of a class to itself, here's what state its in now... (tried many variations, but without direction).

#include <iostream>
#include <string>


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Programming :: Passing Data Between Php And C

Aug 21, 2010

I'm trying to work out the best way to achieve the following.

1)php page that grabs data from a local database. (not a problem)

2)It then needs to send this data to a c program/service running on a remote server. (I probably need it to be able to handle 4+ million reocrds in an array)

3) The c service then needs to process the data and send it back to the initial php script that called it. i was hoping this could be in a an array like structure of some kind. 4)update the db with the results.

I was thinking of using gsoap to write a simple c soap service that php can communicate with. Would this be the right way of doing this or would something like sockets in php be a better way of sending this volume of data as an array or struct to linux c socket if thats even possible.

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Programming :: URL With Parameters Containg Ampersand?

May 20, 2010

[URL]... The above url is generated by PHP code.

if($msg=="No capex advice")
echo " .. <a href="upload_capexadvice.php";
if($msg=="No purchase order")
echo " .. <a href="upload_purchaseorder.php";
if($msg=="No invoice")


I pass two parameters in a URL, s and q. I recently ran into the problem that the & in the value(aerial&satelitecity)causes a bit of trouble so I need to replace it. After some research I found that it needs to be replaced by %26. I've tried the standard PHP functions htmlspecialchars and htmlentities, but they translate to & Is there another function that I haven't found yet or must I write my own?

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Programming :: Bash Script Sed -r -i And -e Parameters?

May 3, 2011

I have a bash script where I am replacing a date with a variable

sed -r "s/([0-9][0-9])/([0-9][0-9])/([0-9][0-9][0-9][0-9])/$variable/g" /path/to/file.txt
I have googled but cant find any info on what the -r, or sometimes I have seen -i and -e, after the "sed" I googled "sed parameters"

r appears to output the replaced date, but not change the original file. Usually using -i will change an original file for me. Does anyone know what the -i, -e, -r are about? A link to an explanation would be good, as I have been unable to find one in my searches.

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Debian Programming :: What Is Purpose Of Parameter Within Single Quotation Marks

Oct 20, 2014

what is the purpose of the parameter within single quotation marks and what it does? I am assuming it is a call to pkg-config with those paramaters.

Code: Select allgcc -o gtkprog gtkprog.c `pkg-config --libs --cflags gtk+-2.0`

Code: Select allpkg-config --libs --cflags gtk+-2.0
-pthread -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/gio-unix-2.0/ -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/libpng12 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng12 -I/usr/include/pango-1.0 -I/usr/include/harfbuzz -I/usr/include/pango-1.0 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/freetype2 -lgtk-x11-2.0 -lgdk-x11-2.0 -lpangocairo-1.0 -latk-1.0 -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lpangoft2-1.0 -lpango-1.0 -lgobject-2.0 -lglib-2.0 -lfontconfig -lfreetype

So, if my logic serves me right, this command parameter is a neat replacement for this litany of libraries to be used in the compilation process.

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Programming :: Passing A Source Ip To The Server?

Jan 12, 2011

i'm programming a small tcp client, but i need that the server knows the source ip. My client receives a external connection and forwards, but the ip seen by the server, of course, is the client ip. I would like, change this ip to original source ip.

I don't know how to do this. I tried with the connect and select function.

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Programming :: Bash - Passing Variable To Ssh?

May 8, 2010

I have a file with around 1000 IP addresses in it and I need to be able to ssh into each one of them, run a single command, and then exit. I already know the ssh command I want to run and it looks like this:


shpass -p [password] ssh -p 10022 -o StrictHostKeyChecking=no root@[ip variable] 'reboot'

(I know shpass is not good to use and keys are the correct way but I don't have any other options in this scenario.) if these ip addresses were in a .csv file, by themselves with no other information, how would I create a script to do the above command to each ip until the end of the file?

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Programming :: Passing A Char* By Reference In C++?

Apr 26, 2010

Below I've presented the declaration, definition and the calling method of a function w.r.t pass by reference:



void getUnpackedMsg (unsigned char &data, unsigned int numberOfBits);
line 278: Shown in RED


void packedMessage :: getUnpackedMsg (unsigned char &emptyArray, unsigned int numberOfBits)
printf ("


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Programming :: Passing A Variable To Bc In Bash ?

Jan 14, 2009

I cannot for the life of me get this little (simple) script I wrote to work. Here is the entire script:


ASPECT=`mediainfo $1 |grep "Display aspect ratio" |cut -d : -f 2`
HEIGHT=`echo "320 / $ASPECT" |bc`
SIZE=`echo 320x$HEIGHT`


An input filename ($1) is fed into mediainfo, which by the use of grep and cut spits out a single number which is the aspect ratio. This is then divided by bc into 320, which gives the desired height dimension for the file that I want ffmpeg to create for me. Finally, ffmpeg runs using the calculated dimensions... Basically, it's the passing of the $ASPECT variable to bc that seems to fail. It looks like bc won't read the output from the mediainfo line... It always crashes out with:


(standard_in) 1: illegal character: ^M I've tried doing something even simpler like this to debug by just trying it to display the calculation on the screen:


ASPECT=`mediainfo $1 |grep "Display aspect ratio" |cut -d : -f 2`
HEIGHT=`echo "320 / $ASPECT" |bc`
echo $HEIGHT

and it does the same, so it's definitely bc that won't accept the output from mediainfo.

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Programming :: Passing Variables By Reference?

Mar 19, 2010

I was trying to make a code for passing variables by's the code:

using namespace std;
void fun(int& ,int& );
int main(){


invalid initialization of non-const reference of type 'int&' from a temporary of type 'int*'

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Programming :: Passing Data To A New Thread?

Feb 11, 2011

I have to launch a new thread from my existing main program and pass data to it.
For now the data is simply a string value.

How I go about passing data to a new thread while it is running.

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