This is a simple question...
char *str = NULL;
int num = 0;
scanf ("%d", &num);
str = ???
I want str to point to the string num.txt
For e.g: If user enters num = 5,
str should point to "5.txt"
How do I do that ?
Thanks (2 Replies)
Hi there, i have been trying different methods and i wonder if somebody could explain to me how i would perform a comparison on two arrays for example
my @array1 = ("gary" ,"peter", "paul");
my @array2 = ("gary" ,"peter", "joe");
I have two arrays above, and i want to something like this... (5 Replies)
I am totally new to perl. I am modifying someone else's script. I have the following output:
# ./some-perlscript
A
B
C
D
E
B - E, is generated through the print command that I put in the script. I want to remove A, it seems it is generated automatically by a custom OS it is querying when... (3 Replies)
hi all , i have a requirement like this..
this just a sample script...
$ cat test.sh
#!/bin/bash
perl -e '
open(IN,"addrss");
open(out,">>addrss");
@newval;
while (<IN>)
{
@col_val=split(/:/);
if ($.==1)
{
for($i=0;$i<=$#col_val;$i++)
{
... (2 Replies)
Hi ,
I just write a simple function to read the file line by line.
But when I run it it says out of memory.
I am not sure about the root cause, Can someone help me out of this?
:D
#! /usr/bin/perl
use strict;
sub checkAPs{
my $NDPDir = "/home/eweiqqu/NCB/NDP_files/";
... (1 Reply)
Right now, my code is:
s/Secondary Ins./Secondary Ins.\
1/g
It's adding a 1 as soon as it finds Secondary Ins.
Primary Ins.: MEDICARE B DMERC Secondary Ins.
1: CONTINENTAL LIFE INS
What I really want to achieve is having a 1 added on the next line that contain "Secondary Ins." It... (4 Replies)
Hello all!
This is my first post and I'm very new to programming. I would like help creating a simple perl or bash script that I will be using in my work as a junior bioinformatician.
Essentially, I would like to take a tab-delimted or .csv text with 3 columns and write them to a "3D" matrix:
... (16 Replies)
Cheers!
In /etc/syslog.conf, if an error type is not specified, is it logged anywhere (most preferable is it logged to /var/log/messages) or not?
To be more precise I am interested in error and critical level messages. At default these errors are not specified in syslog.conf, and I need to... (6 Replies)
Hello,
I'm completely new to Perl and I'm just looking for a quick answer to some code I'm trying to come up with. I'm trying to access a website, part of the URL I want the user to be able to define via standard input. As you can see below I'm still trying to get the syntax.
... (2 Replies)
Greetings!
I've been tooling about with Perl to make a few string replacements in some files; and seem to have run into a bit of a squeeze :)
Beginning with a simple text file, test.txt, we have the following content to be worked:Now, not wanting to have anyone feel left out, I decided that... (6 Replies)
Discussion started by: LinQ
6 Replies
LEARN ABOUT REDHAT
ecvt_r
ECVT_R(3) Linux Programmer's Manual ECVT_R(3)NAME
ecvt_r, fcvt_r, qecvt_r, qfcvt_r - convert a floating-point number to a string
SYNOPSIS
#include <stdlib.h>
char *ecvt_r(double number, int ndigits, int *decpt, int *sign, char *buf, size_t len);
char *fcvt_r(double number, int ndigits, int *decpt, int *sign, char *buf, size_t len);
char *qecvt_r(long double number, int ndigits, int *decpt, int *sign, char *buf, size_t len);
char *qfcvt_r(long double number, int ndigits, int *decpt, int *sign, char *buf, size_t len);
DESCRIPTION
The functions ecvt_r, fcvt_r, qecvt_r and qfcvt_r are identical to ecvt, fcvt, qecvt and qfcvt, respectively, except that they do not
return their result in a static buffer, but instead use the supplied buf of size len. See ecvt(3) and qecvt(3).
NOTES
These functions are obsolete. Instead, sprintf() is recommended.
CONFORMING TO
These functions are GNU extensions.
SEE ALSO ecvt(3), qecvt(3), sprintf(3)GNU 2002-08-25 ECVT_R(3)