Data commit

Task/Execute-a-system-command/Objective-C/execute-a-system-command-1.m

@@ -0,0 +1,5 @@
+void runls()
+{
+    [[NSTask launchedTaskWithLaunchPath:@"/bin/ls"
+        arguments:@[]] waitUntilExit];
+}

Task/Execute-a-system-command/Objective-C/execute-a-system-command-2.m

@@ -0,0 +1,6 @@
+void runSystemCommand(NSString *cmd)
+{
+    [[NSTask launchedTaskWithLaunchPath:@"/bin/sh"
+        arguments:@[@"-c", cmd]]
+        waitUntilExit];
+}

Task/Execute-a-system-command/Objective-C/execute-a-system-command-3.m

@@ -0,0 +1,17 @@
+#import <Foundation/Foundation.h>
+
+void runSystemCommand(NSString *cmd)
+{
+    [[NSTask launchedTaskWithLaunchPath:@"/bin/sh"
+        arguments:@[@"-c", cmd]]
+        waitUntilExit];
+}
+
+int main(int argc, const char **argv)
+{
+    @autoreleasepool {
+
+      runSystemCommand(@"ls");
+    }
+    return 0;
+}