ps

Microshell/microshell.c

@@ -10,6 +10,7 @@
 #include <readline/readline.h>
 #include <readline/history.h>
 #include <fcntl.h>
+#include <ctype.h>
 
 const int max = 1000;
 
@@ -188,6 +189,53 @@ void mycp (char **argv){
 	}
 }
 
+void myps (char **argv){
+	if (fork() == 0){
+		if (chdir("/proc") != 0){
+			perror("cant open /proc");
+			exit(0);
+		}
+		else{ /*weszlismy w 1 fork do katalogu proc */
+			DIR *d;
+			struct dirent *ent;
+			int i, p;
+
+			if ((d = opendir("/proc")) != NULL){ /*otwieramy proc*/
+				while ((ent = readdir(d)) != NULL){ /*czytamy zawartosc*/
+					char *name = ent->d_name;
+					p=0;
+					for (i=0; i<strlen(name); i++)
+					 	if (!isdigit(name[i])){
+							p=1;
+							break;
+						}
+					if(p)
+						continue; /*jesli nie jest liczba to idziemy dalej*/
+
+					char *direc;
+					direc = (char*)malloc((strlen(name) + 10) * sizeof(char));
+					direc[0] = '\0';
+					strcat(direc, "./");
+					strcat(direc, name);
+					strcat(direc, "/status"); /*tworzenie sciezki*/
+					if (fork() == 0)
+						execlp("sed", "sed", "-n", "1p", direc, NULL);
+					else
+						wait(NULL);
+
+					if (fork() == 0)
+						execlp("sed", "sed", "-n", "6p", direc, NULL);
+					else
+						wait(NULL);
+				}
+			}
+		}
+		exit(0);
+	}
+	else
+		wait(NULL);
+}
+
 int main (){
 	int spath = 1, i=0;
 	using_history();
@@ -252,6 +300,10 @@ int main (){
 			mycp(argv);
 			continue;
 		}
+		else if (!strcmp(argv[0], "showps")){
+			myps(argv);
+			continue;
+		}
 		else if (!strcmp(argv[0], "exit"))
 			break;
 		else