fix: 计划任务下载文件增加前缀

backend/utils/cmd/cmd.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"bytes"
+	"fmt"
 	"os/exec"
 )
 
@@ -16,3 +17,15 @@ func Exec(cmdStr string) (string, error) {
 	}
 	return stdout.String(), nil
 }
+
+func Execf(cmdStr string, a ...interface{}) (string, error) {
+	cmd := exec.Command("bash", "-c", fmt.Sprintf(cmdStr, a...))
+	var stdout, stderr bytes.Buffer
+	cmd.Stdout = &stdout
+	cmd.Stderr = &stderr
+	err := cmd.Run()
+	if err != nil {
+		return stderr.String(), err
+	}
+	return stdout.String(), nil
+}