英文:
How do i pass a Golang variable to Bash Script?
问题
script.sh
>
#!/bin/sh
dbt run --select $model_tag --profiles-dir .
想要运行这个 shell 脚本，从我的 .go 文件中获取变量 model_tag
invoke.go
>
package main
import (
"fmt"
"log"
"net/http"
"os"
"os/exec"
)
func handler(w http.ResponseWriter, r *http.Request) {
log.Print("helloworld: received a request")
mt := r.Header.Get("Model-Tag")
cmd := exec.CommandContext(r.Context(), "/bin/sh", "script.sh")
cmd.Env = append(os.Environ(), fmt.Sprintf("model_tag=%s", mt))
cmd.Stderr = os.Stderr
out, err := cmd.Output()
if err != nil {
w.WriteHeader(500)
}
w.Write(out)
}
func main() {
log.Print("helloworld: starting server...")
http.HandleFunc("/", handler)
port := os.Getenv("PORT")
if port == "" {
port = "8080"
}
log.Printf("helloworld: listening on %s", port)
log.Fatal(http.ListenAndServe(fmt.Sprintf(":%s", port), nil))
}
在这里，mt 是从请求中接收到的头部信息，我需要在执行 shell 脚本之前将其传递给脚本。
如何在使用 go 文件执行 shell 脚本之前设置 model_tag = mt？
尝试直接设置 model_tag = mt，会抛出语法错误。
英文:
script.sh
>
#!/bin/sh
dbt run --select $model_tag --profiles-dir .
Want to run this shell script that takes the Variable model_tag from my .go file
invoke.go
>
package main
import (
"fmt"
"log"
"net/http"
"os"
"os/exec"
)
func handler(w http.ResponseWriter, r *http.Request) {
log.Print("helloworld: received a request")
mt := r.Header.Get("Model-Tag")
cmd := exec.CommandContext(r.Context(), "/bin/sh","script.sh")
cmd.Stderr = os.Stderr
out, err := cmd.Output()
if err != nil {
w.WriteHeader(500)
}
w.Write(out)
}
func main() {
log.Print("helloworld: starting server...")
http.HandleFunc("/", handler)
port := os.Getenv("PORT")
if port == "" {
port = "8080"
}
log.Printf("helloworld: listening on %s", port)
log.Fatal(http.ListenAndServe(fmt.Sprintf(":%s", port), nil))
}
Here, mt is the header being received from a request, that i need to pass to the shell script before execution?
How do i set model_tag = mt before executing the shell script using the go file?
Tried setting model_tag = mt directly, throws a syntax error
答案1
得分: 2
在执行运行 script.sh 的命令之前，执行以下操作：
os.Setenv("model_tag", mt)
英文:
Before executing your cmd which runs script.sh, do a
os.Setenv("model_tag", mt)
答案2
得分: 0
尝试使用以下代码：
cmd := exec.CommandContext(r.Context(), "/bin/sh", fmt.Sprintf("model_tag=%s script.sh", mt))
请注意，这是一段Go语言代码，用于执行Shell命令。
英文:
try with
cmd := exec.CommandContext(r.Context(), "/bin/sh",fmt.Sprintf("model_tag=%s script.sh",mt))
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论