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C language sp
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Recommended: C language sp
/* myshell.c
Description: Program that creates a shell and executes some shell commands
*/
#include
#include
#include
#include
#include
#include
#include
extern char **getln();
// Function used to check the file input direction command
int inputFile(char **args, char **fileIn) {
int i,j;
//go thorough the command line arguments
for(i=0;args[i] != NULL;i++) {
// check for the input direction symbol
if(args[i][0] == '<') {
// save the filename command
if(args[i+1] != NULL) {
*fileIn = args[i+1];
}
/*for(j=i;args[j-1] != NULL;j++) {
args[j] = args[j+2];
}*/
return 1;
}
}
return 0;
}
// Function used to check the file output direction command
int outputFile(char **args, char **fileOut) {
int i,j;
// go thorough the command line arguments
for(i=0;args[i] != NULL;i++) {
// Look for the output direction symbol
if(args[i][0] == '>') {
// save the filename command
if(args[i+1] != NULL) {
*fileOut = args[i+1];
}
/*for(j=i;args[j-1] != NULL; j++) {
args[j] = args[j+2];
}*/
return 1;
}
}
return 0;
}
// The main function of the program responsible for creating the shell
main() {
// all the variables used in the programs functionality
int i;
char **args;
int status;
pid_t child;
int checkInput;
int checkOutput;
int flag =0;
char *fileOut;
char *fileIn;
int sum=0;
int num;
long convert;
int j;
int count=0;
int k;
int counter;
int checkProduct;
while(1) {
sum =0;
int argCount = 0;
args = get...
... middle of paper ...
... checkInput = inputFile(args, &fileIn);
checkOutput = outputFile(args, &fileOut);
// fork a new process for commands on the command line argument
child = fork();
if(child >= 0) {
if(child == 0) {
// check if there is any file input redirection command and execute it
if(checkInput == 1) {
freopen(fileIn, "r", stdin);
}
// check if there is any file output redirection command and execute it
if(checkOutput == 1) {
freopen(fileOut, "w+", stdout);
}
execvp(args[0],args);
exit(0);
}
// wait for the child process to stop executing
else {
// check if there is an ampersend for background processing, if it is then dont wait
if(flag == 0) {
wait(&status);
}
}
}
else {
printf("Fork failed, the shell is exiting...
");
return 1;
}
}
}
Be carful not to log in more than 3 time incorrectly, If you see OVL400 this means you are locked out for up to 45 Minutes.
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type in my password. Even though this takes time, I know that I will be able to
The Target breach which is said to be the second-largest retail cyber-attack in history wasn’t necessarily inventive, nor did it appear destined for success, yet hackers were able to access roughly 40 million customers personal information by installing a malware into Target’s security system.1 In the days leading up to Thanksgiving 2013 the hackers installed malware in Target’s security and payments system which was designed to steal every credit card used in store at over 1,797 U.S. locations. The data breach initially disclosed in December which exposed around 40 million customer’s names, card numbers, card expiration dates, card security codes and debit card pins were recorded for the hackers to see, although the pins were encrypted. After a later review Target disclosed additional information which later was said to be that roughly 70 million more consumers had their names, addresses, phone numbers and email addresses exposed.2
Go over the list of tasks and prioritize them from the most important to the least important. Cross off each task from the list once you complete it.
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signals when trying to log on. When and if they do get on AOL, the service runs
tasks on time, this made work a lot easier, and also gave me an idea
Most people may find the experience of waiting as difficult. Many would agree with Daley’s description quoted previously, that “waiting feels weak.” The desire to create results or influence decisions are aspects of the human character that are stifled when in a holding pattern of waiting. Daley goes on to explain that weakness is where God works. For humanity, the challenge of waiting comes in choosing to embrace the weakness, by finding strength in trusting God to fulfill his promises. Another, challenge for humanity in waiting is changing one’s perspective from the results to the work of God in the present, acknowledging that no matter the outcome today in the end God will fulfill every promise and it will be good.
...lt time in Micro because all I do is set ups. I also complete gram
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