init

,

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+script_path=$(realpath $0)
+script_dir=$(dirname $script_path)
+
+cd $script_dir
+
+output=/tmp/commandgo
+
+# 为什么不直接使用 go run . 呢
+# 因为 go run 编译时会往 PATH 里注入 Go 的 bin 目录，这个修改过后的 PATH 会传递给子进程
+# 于是程序运行起来时获取的 PATH 环境变量和外界不一致，因此不用 go run . 编译运行
+go build -o $output . && $output $@
+

.gitignore

@@ -0,0 +1 @@
+*~

go.mod

@@ -0,0 +1,3 @@
+module commago
+
+go 1.26.4

main.go

@@ -0,0 +1,30 @@
+package main
+
+import (
+	"fmt"
+	"os"
+)
+
+func commandsUsage() string {
+	return fmt.Sprintf(
+		`commands:
+  path        %v
+`, commandPathDescription)
+}
+
+func main() {
+	if len(os.Args) >= 2 {
+		switch os.Args[1] {
+		case "path":
+			commandPath(os.Args[1:])
+		default:
+			fmt.Printf("unknow command `%v`\n\n", os.Args[1])
+			fmt.Printf("%v", commandsUsage())
+			os.Exit(1)
+		}
+	} else {
+		fmt.Println("Personal scripts set written in Golang\n")
+		fmt.Printf("%v", commandsUsage())
+	}
+
+}

path.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"os"
+	"strings"
+)
+
+var commandPathDescription = "list paths"
+
+func commandPath(args []string) {
+	fs := flag.NewFlagSet("path", flag.ContinueOnError)
+	fs.Parse(args)
+	rawPath := os.Getenv("PATH")
+	paths := strings.Split(rawPath, string(os.PathListSeparator))
+	for _, item := range paths {
+		fmt.Println(item)
+	}
+}

readme.md

@@ -0,0 +1,6 @@
+## commago
+
+Personal tools set written in Golang.
+
+To use it just clone and add the directory to *PATH*.
+Then type "," command, all commands will appear.