Nice and I thanked the post but...
Be aware, this only works in ksh93 and zsh on Apple gear.
'bash 3.2.x which is all we have with Apple, and POSIX' is a non-starter.
I have the following simple code to return a binary number in a array format given an interger and the number of the bits for specifying the interger as binary number.
#include <stdio.h>
#include <stdlib.h>
int main ()
{
// int* get_binary_number(int* bit_array, int num, int... (8 Replies)
Hi All,
Is there any command which can convert binary decimal coded values to ascii values...
i have bcd values like below
оооооооооооо0о-- -v -
Pls suggest a way to convert this.
Thanks,
Deepti.Gaur (3 Replies)
Anybody please help me...
Design an algorithm that accepts an input a decimal number and converts it into BCD (Binary Coded Decimal) representation. Also, draw its Flow Chart.
This is a unix qn...
plz post algorithm for that :confused: (1 Reply)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Design an algorithm that accepts an input a decimal number and converts it into BCD (Binary... (2 Replies)
I need code for converting a string to a negative decimal value.
For ex, i have the value in the form of a string (5489.95-) i need to convert it into decimal value (-5489.95) while getting output using printf command.
i know how to get as a string
a="5489.95-"
printf "%10s"$a >>xyz.dat
... (5 Replies)
Hi All,
New to this forum (and yes , a newbie in programming..:p)
I have a decimal to binary converter script done this way :
i=$1
bit0=$(( (i & 0x01) > 0 ))
bit1=$(( (i & 0x02) > 0 ))
bit2=$(( (i & 0x04) > 0 ))
bit3=$(( (i & 0x08) > 0 ))
bit4=$((... (6 Replies)
Hello,
I have script which work fine on particular data.file .
The next feature I want to achieve is to get the decimal equivalent of data to data.
The data looks like this :
data(01000000000000000000110000000000)
thank you..
#include <iostream>
#include <fstream>
#include... (4 Replies)
Hi ,
seq can be 0...128
int windex = seq / 8;
int bindex = seq % 8;
unsigned char bitvalue = '\x01' << (7-bindex) ;
bpv.bitmapvalue = bitvalue;
This is the part of a program to convert decimal to bitmap value of hexadecimal.
I want this to change to convert only to... (1 Reply)
Discussion started by: greenworld123
1 Replies
LEARN ABOUT REDHAT
system
SYSTEM(3) Linux Programmer's Manual SYSTEM(3)NAME
system - execute a shell command
SYNOPSIS
#include <stdlib.h>
int system(const char *string);
DESCRIPTION
system() executes a command specified in string by calling /bin/sh -c string, and returns after the command has been completed. During
execution of the command, SIGCHLD will be blocked, and SIGINT and SIGQUIT will be ignored.
RETURN VALUE
The value returned is -1 on error (e.g. fork failed), and the return status of the command otherwise. This latter return status is in the
format specified in wait(2). Thus, the exit code of the command will be WEXITSTATUS(status). In case /bin/sh could not be executed, the
exit status will be that of a command that does exit(127).
If the value of string is NULL, system() returns nonzero if the shell is available, and zero if not.
system() does not affect the wait status of any other children.
CONFORMING TO
ANSI C, POSIX.2, BSD 4.3
NOTES
As mentioned, system() ignores SIGINT and SIGQUIT. This may make programs that call it from a loop uninterruptable, unless they take care
themselves to check the exit status of the child. E.g.
while(something) {
int ret = system("foo");
if (WIFSIGNALED(ret) &&
(WTERMSIG(ret) == SIGINT || WTERMSIG(ret) == SIGQUIT))
break;
}
Do not use system() from a program with suid or sgid privileges, because strange values for some environment variables might be used to
subvert system integrity. Use the exec(3) family of functions instead, but not execlp(3) or execvp(3). system() will not, in fact, work
properly from programs with suid or sgid privileges on systems on which /bin/sh is bash version 2, since bash 2 drops privileges on
startup. (Debian uses a modified bash which does not do this when invoked as sh.)
The check for the availability of /bin/sh is not actually performed; it is always assumed to be available. ISO C specifies the check, but
POSIX.2 specifies that the return shall always be non-zero, since a system without the shell is not conforming, and it is this that is
implemented.
It is possible for the shell command to return 127, so that code is not a sure indication that the execve() call failed.
SEE ALSO sh(1), signal(2), wait(2), exec(3)
2001-09-23 SYSTEM(3)