How to Run Multiple `exec` Commands Sequentially in the Same Shell Using Go?

Running Multiple Exec Commands in the Same Shell Using Go

In the os/exec package of Go, executing multiple commands simultaneously presents a challenge. This article addresses a specific instance where executing commands sequentially and within the same shell is desired.

Problem Description

The provided code attempts to run three commands in succession:

cd path; ./configure; make

However, the second command, ./configure, fails with a "no such file or directory" error because the working directory is not set.

Solution Using a Shell

To execute commands within a single shell instance, the following approach can be used:

cmd := exec.Command("/bin/sh", "-c", "cd path; ./configure; make")
err := cmd.Run()

This command invokes the shell (/bin/sh) with the option -c, which executes the provided commands sequentially in the shell. This allows cd to change the working directory for subsequent commands.

Solution Using Working Directory

Alternatively, if only a specific directory needs to be set for the commands, the working directory can be set manually:

config := exec.Command("./configure", "--disable-yasm")
config.Dir = folderPath
build := exec.Command("make")
build.Dir = folderPath

By setting the Dir field of the command, the working directory is changed before the command is executed, ensuring that the commands run in the correct directory.

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