Im just setting out on the long road to learn python so please excuse my lack of knowledge.Im initally trying to read a csv in and print only certain "elements" (not sure if thats the right term) from a list. But I am getting the error :TypeError: list indices must be integersMy Code is :
Code:
#!/usr/bin/python
import csv
[code]...
From what I understand, if I attempt to increment an unsigned int which is already at its max value, it will flip back to zero.Question: is this guaranteed to happen by the C language? That is, can I count on this happening on all platforms?(Of course, I recognize that the max value of the int will change from platform to platform...)
View 5 Replies View RelatedI have a string, like file223a3b5. How can I extract the number beginning after "file" and ending before "a"?
View 3 Replies View RelatedCode:
#include <stdio.h>
int main ()
[code]...
I am aware that this question has been asked before and I have also tried the solution suggested but I am still not able to figure it out why I am getting some wierd results when I am using printf with a 64 bit signed and unsigned integer in C.I am running Suse 10.2 on a Intel(R) Pentium(R) M processor 2 GHz.I tried to call functions strtol strtoll strtoul and strtoull with different integer sizes and these are the results i get from my program shown below:
int i;
char str[100];
char endstr[100];
[code]...
How would I list 4 users ID numbered 10, 11, 12 and 13 from my users list and output them to a file busers where their names are numbered by ascending order? How would I accomplish that on a one line command?
View 4 Replies View RelatedI am trying to get this script to work. The purpose is to download a list of modules from the slax.org the list consist of a list of module numbers. What I am trying to do is Download the file or the file name corresponding to the number in the list.the list is comma delimited. this is what I have done so far and I am a stand still.
#!/bin/sh
# Wget script to retrieve modules from slax.org modules
#
# ----Begin of user defined values -----
# Path to wget
[code].....
When ever I try to run system-config-samba after the recent update I get the error:
connection.py:630:call_blocking:TypeError: a float is required
Running a 5.2 VM on ESXI, and the software updater keeps dying when I try to download some development packages (default libraries and tools). yum installs packages just fine - it's only if I use the add/remove software. See error log below:
[Code]...
Solving issues with signed and unsigned numbers in BASH.For a start, Yes, BASH is type independent � I know that. My problem lays in catching executables output into a BASH variable.My executables are not quite UNIX compatible, where returned values are 0 for OK, >0 ERROR. They return 0 for OK, >0 WARNING (only, so move on) and <0 ERROR (abort) instead.
Code:
// C++ BIN A
int main(){
[code]...
Just i want to ask doubts in c programming. I dont know whether this is the right place to ask doubts in c. If this is not a correct place, may i know where can i get help for c programming?is there any active forum or mailing list for c programming?
View 6 Replies View RelatedI am doing something for a class, and i have to list all the files in the users home directory, and i did a ls -F so the directories have a / after them but i don't know how to remove them because i just want the files not the directories
when I run the command i get
Desktop/
"file"
i need the Desktop/ to go away
I need to create a program where the user creates an account and he/she is entitled to add interests and creating friendships with other users.The main algorithm depends on an object which is the user and its attributes are adding interests, friends, so on.Users are stored in a linked list while their interests are stored in another list.What I want to do is every time a new user is created dynamically create a new list during execution for personal info. storage. Is that possible?
View 12 Replies View RelatedI'm quite new to c++ programming, so my concepts are not so increased yet...
I wanna to create a list to store my objects. I'll resume them here:
Code:
private:
And what I want to do is an event list:
Code:
Sometimes this works and sometimes I got "segmentation fault".
I think I'm doing it wrong, cause these objects have different sizes, so I don't know if I could have all of them in a single array.
Is there something like GtkRecentManager that will give you a list of recently-used or most-used applications instead of files, or will GtkRecentManager give you apps too?
View 1 Replies View RelatedI have a C header file which have arrays of predefined(known) structure type. But i dont have names of arrays and their size. when i include that file and compile my application, i want to know the names and sizesof those arrays.
purpose of application is to get the content of those arrays and to explain it in descriptive words instead of hex numbers.ofcourse this can be done by file pointers and reading also with out header file inclusion, but as i am working in C, once compiled, those variables are in my address space in i include header file.
I have a file witch I need to list 10 line by 10 lines with something like press enter to go on in between.
Well, the problem is that i have absolutely no idea on how to implement this.
Can you give me some points?
I am an uploader to a various hosts, so this tiny script me a lot. I make a rar archive and split files with 100mb. I could get 3-4 or even 76 parts of rar files and it would take me some time to paste all these urls to remote upload function of filehosting sites. For example:
Code:
server:/home/cober/downloads/teevee# ls -al
total 358784
drwxrwxrwx 2 root root 4096 Dec 8 19:38 .
[code]....
I have a list of list and I'd like to sort the list according to the last value of each row.
Let's say we have the list
L1 = [ [1,2] , [4,6] , [78,-3] ]
I wish to get
L2 = [ [78,-3] , [1,2] , [4,6] ]
Is there a simple way to do that in python?
I would like to ping all my virtual hosts in virtual machine server with a oneliner. For example like this:
Code:
for i in $(seq 1 20); do if [[ $(ping host$i.virtualhostserver.com -c 2 2>/dev/null | grep "2 received") == "2 packets transmitted" ]]; then echo $i; fi; done
The problem is, that I'm afraid my if-sentence is somewhat wrong because it never gets a match even if I know, that host is up.
I'm trying to compose a line of numbers each single digit taken from a variable eg: 1010001 each variable digit is either a 0 or 1 made from variable layer1 through 7. I need to add each layer variable to the last to compose the number with no commas or spaces and add it directly after the -p option in the show_command line. I used array and list and the commas mess up the command and inserting "pens" in the show command interpertes it literally instead of the list or array value? The insert should look something like 1000110
Code:
How to I make a list of thumbnails in Qt, kind of like the "Icon View" in many GUI file managers?
View 11 Replies View RelatedI am trying to write a program to list wireless interfaces and changing mac address the interface that will run primarily on ubuntu 8.04 and hopefully other linux distros.I am able to list out the wireless interfaces and change MAC address using popen with linux commands in ubuntu 8.04Is there a way to use C++ to do the above instead of using popen with linux commands so that the program can be used for other linux distros?I have been googling on this but no luck so far.
View 2 Replies View RelatedDoes anyone know what the Inet/AMD instruction 'nopl' is or does anyone know where I can find a list of hex values for the Intel/AMD instructions. nothing important is waiting on this reply.
[Code]...
How to get list of threads of a process using C code in Linux?
View 6 Replies View RelatedI have my own declared types and I have to operate with lists of items. I wish to write a one macro, instead of using a function for each type. It's intended to be like this: Code: #define ____append_to_list(head,
item, type)
type* ptr;
for ( ptr = head; ptr->next != NULL; ptr = ptr->next )
[code].....
I have a file with 5000 lines. it is a list of books authors, series and titles. all lines start with the author names, than there is a dash (-) than the series name, a dash again and the title of the book.
The problem I encounter is that sometime there is a series, sometime not, and as I try to enter this list in a database, I wanted to create a cvs file to import into mysql.
ex:
The best would be to be able to add in the second line, a "space dash space" just after the author name, but how to make sure it does not do it to the first line as well.
If I could separate all line with 2 dash, (grep ?) then I would be able to do a simple replace, and change the single dash into two.
I have to display from the list of files given as parameters the name of the file with the largest number of words and their number.(with AWK)
View 2 Replies View RelatedI'd like to pass the following arguments to a bash script in any order:
Code:
myscript -l <country> -r <file1> <file2> ... -o
I read the argument list in a switch shift loop. I figured out how to read the filelist but only if -f is the last option.
how to position the file list anywhere in the argument list?
If I do:
for i in $(cat names); do seq -f "$i%03.0f" 0 999; done > output5.txt
I got ( tail snipped):
997munt
998munt
999munt
If I do:
for i in $(cat names); do seq -f "%03.0f$i" 0 999; done > output4.txt
I got:
997Zygmunt
998Zygmunt
999Zygmunt
How I can get numbers from 000 to 999 appended like:
Zygmunt997
Zygmunt998
Zygmunt999