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POpassing value of array to the start of the loop
 

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    <p>My goal is to have the user view the history of entered commands (<code>historyArray</code> - done) and allow him to re-run any command in history, by entering <code>history 1</code>, <code>history 2</code> where <code>1</code> and <code>2</code> is the number of the list of commands as printed-out from <code>historyArray</code>. I have managed to obtain the index from the second parameter (<code>history 1</code>) of the user input. My question is now, how to execute that specific command obtained from <code>history N</code>?</p> <p>So, for example:</p> <pre><code> hshell&gt; test [Enter] Command not found hshell&gt; history 1 Command not found </code></pre> <p>Here is my progress:</p> <pre><code>#include &lt;stdio.h&gt; #include &lt;stdlib.h&gt; #include &lt;string.h&gt; int main (int argc, char *argv[]) { int i=0; int j=0; int k=0; int elementCounter = 0; char inputString[100]; char *result=NULL; char delims[] = " "; char historyArray[30][20] = {0}; char tokenArray[20][20] ; int tempIndex = 0; char hCommand[2][20]={0}; do { j = 0; printf("hshell&gt;"); gets(inputString); strcpy (historyArray[k], inputString); k = (k+1) % 20; if (elementCounter &lt;= 20) { elementCounter++; } if (elementCounter == 21) { k = 20; for (i=0; i&lt;20; i++) { strcpy(historyArray[i], historyArray[i+1]); } strcpy (historyArray[19], inputString); } // Break the string into parts result = strtok(inputString, delims); while (result!=NULL) { strcpy(tokenArray[j], result); j++; result= strtok(NULL, delims); } if (strcmp(tokenArray[0], "exit") == 0) { return 0; } else if (strcmp(tokenArray[0], "history") == 0) { if (j&gt;1) { tempIndex = atoi(tokenArray[1]); strcpy(hCommand,historyArray[tempIndex-1]); puts(hCommand); // tempIndex = atoi(tokenArray[j]); //puts(tempIndex); } else { //print history array for (i=0; i&lt;elementCounter-1;i++) printf("%i. %s\n", i+1, historyArray[i]); } } else { printf("Command not found\n"); } }while (1); } </code></pre> <ul> <li><code>hCommand</code> is where I store the command as obtained from <code>historyArray</code>.</li> <li>I am using a Windows machine.</li> </ul>
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