gobox中的编解码和执行shell命令

今天来说下gobox中的encoding和shell两个box。

encoding

encoding的主要作用是完成编解码工作，目前支持了base64编解码。

用法示例

package main

import (
    "github.com/goinbox/encoding"

    "fmt"
)

func main() {
    coded := encoding.Base64Encode([]byte("test goinbox base64 encoding"))
    fmt.Println("coded:", string(coded))

    uncoded := encoding.Base64Decode(coded)
    fmt.Println("uncoded:", string(uncoded))
}

输出效果示例

coded: dGVzdCBnb2luYm94IGJhc2U2NCBlbmNvZGluZw==
uncoded: test goinbox base64 encoding

shell

shell提供了简单的执行shell命令的方法

简单执行命令

示例：

package main

import (
    "github.com/goinbox/shell"

    "fmt"
)

func main() {
    result := shell.RunCmd("ls -l /home/ligang")

    fmt.Println("exec ok:", result.Ok)
    fmt.Println("exec output:", string(result.Output))
}

结果输出：

exec ok: true
exec output: total 52
drwxrwxr-x  3 ligang ligang 4096 4月   3 17:40 backup
drwxr-xr-x  2 ligang ligang 4096 4月   3 17:54 Desktop
drwxrwxr-x 10 ligang ligang 4096 4月  20 17:45 devspace
drwxr-xr-x  2 ligang ligang 4096 4月   3 17:33 Documents
drwxr-xr-x  2 ligang ligang 4096 4月   3 17:33 Downloads
drwxrwxr-x  4 ligang ligang 4096 4月   4 10:20 gopath
drwxr-xr-x  2 ligang ligang 4096 4月   3 17:33 Music
drwxr-xr-x  2 ligang ligang 4096 4月   3 17:33 Pictures
drwxr-xr-x  2 ligang ligang 4096 4月   3 17:33 Public
drwxrwxr-x  3 ligang ligang 4096 4月   3 18:12 soft
drwxr-xr-x  2 ligang ligang 4096 4月   3 17:33 Templates
drwxrwxr-x  9 ligang ligang 4096 5月   8 11:03 tmp
drwxr-xr-x  2 ligang ligang 4096 4月   3 17:33 Videos

以其它用户身份执行

示例：

package main

import (
    "github.com/goinbox/shell"

    "fmt"
)

func main() {
    result := shell.RunAsUser("ls -l /root", "root")

    fmt.Println("exec ok:", result.Ok)
    fmt.Println("exec output:", string(result.Output))
}

结果输出：

[sudo] password for ligang:
exec ok: true
exec output: total 0

执行rsync

示例：

package main

import (
    "github.com/goinbox/shell"

    "os/user"
    "fmt"
)

func main() {
    sou := "./tmp/rsync/sou/"
    dst := "./tmp/rsync/dst/"
    file := "rsync.txt"

    cmd := "mkdir -p " + sou + "; mkdir -p " + dst + "; /bin/echo 'rsync sou' > " + sou + file
    shell.RunCmd(cmd)

    currentUser, _ := user.Current()
    sshUser := currentUser.Username

    result := shell.Rsync(sou, dst, "", sshUser, 3)
    fmt.Println(string(result.Output))
}

结果输出：

sending incremental file list
rsync.txt

sent 140 bytes  received 39 bytes  358.00 bytes/sec
total size is 10  speedup is 0.06

从shell脚本中读取指定变量值

示例：

package main

import (
    "github.com/goinbox/shell"

    "fmt"
)

func main() {
    //eg: params.sh
    //user_name="zhangsan"
    //nick_name="lisi"
    //sex="boy"

    shellScript := "params.sh"
    paramMap := map[string]string{
        "user_name": "user_name",
        "nick_name": "nick_name",
        "user_sex":  "sex",
    }
    params := shell.GetParamsFromShell(shellScript, paramMap)
    fmt.Println(params)
}

输出：

map[user_name:zhangsan nick_name:lisi user_sex:boy]

欢迎大家使用，使用中有遇到问题随时反馈，我们会尽快响应，谢谢！