Just another update

Task/Execute-a-system-command/AWK/execute-a-system-command.awk

@@ -1,3 +1,4 @@
 BEGIN {
-  system("ls")
+  system("ls")		# Unix
+ #system("dir")		# DOS/MS-Windows
 }

Task/Execute-a-system-command/Euphoria/execute-a-system-command.euphoria

@@ -0,0 +1,32 @@
+ -- system --
+-- the simplest way --
+-- system spawns a new shell so I/O redirection is possible --
+
+system( "dir /w c:\temp\ " ) -- Microsoft --
+
+system( "/bin/ls -l /tmp" ) -- Linux BSD OSX --
+
+----
+
+ -- system_exec() --
+ -- system_exec does not spawn a new shell --
+ -- ( like bash or cmd.exe ) --
+
+integer exit_code = 0
+sequence ls_command = ""
+
+ifdef UNIX or LINUX or OSX then
+    ls_command = "/bin/ls -l "
+elsifdef WINDOWS then
+    ls_command = "dir /w "
+end ifdef
+
+exit_code = system_exec( ls_command )
+
+if exit_code = -1 then
+    puts( STDERR, " could not execute " & ls_command & "\n" )
+elsif exit_code = 0 then
+    puts( STDERR, ls_command & " succeeded\n")
+else
+    printf( STDERR, "command %s failed with code %d\n", ls_command, exit_code)
+end if

Task/Execute-a-system-command/Go/execute-a-system-command.go

@@ -1,13 +1,16 @@
 package main
-import "fmt"
-import "os/exec"
+
+import (
+    "log"
+    "os"
+    "os/exec"
+)
 
 func main() {
-  cmd := exec.Command("ls", "-l")
-  output, err := cmd.Output()
-  if (err != nil) {
-    fmt.Println(err)
-    return
-  }
-  fmt.Print(string(output))
+    cmd := exec.Command("ls", "-l")
+    cmd.Stdout = os.Stdout
+    cmd.Stderr = os.Stderr
+    if err := cmd.Run(); err != nil {
+        log.Fatal(err)
+    }
 }

Task/Execute-a-system-command/NewLISP/execute-a-system-command.newlisp

@@ -0,0 +1 @@
+(exec "ls")