nodeJS exec不适用于“cd” shell cmd [英] nodeJS exec does not work for "cd " shell cmd
问题描述
var sys = require('sys'),
exec = require('child_process').exec;
exec("cd /home/ubuntu/distro", function(err, stdout, stderr) {
console.log("cd: " + err + " : " + stdout);
exec("pwd", function(err, stdout, stderr) {
console.log("pwd: " + err + " : " + stdout);
exec("git status", function(err, stdout, stderr) {
console.log("git status returned " ); console.log(err);
})
})
})
cd: null :
pwd: null : /
git status returned
{ [Error: Command failed: fatal: Not a git repository (or any of the parent directories): .git ] killed: false, code: 128, signal: null }
nodeJS exec不适用于cdshell cmd。如下所示,pwd工作,git状态正在尝试工作,但是失败,因为它不在git目录中执行,但cd cmd无法停止其他cmds的进一步执行。
尝试在nodeJS shell以及nodeJS + ExpressJS webserver中。
nodeJS exec does not work for "cd " shell cmd. as you see below, pwd works, git status is trying to work but fails because it is not executed in a git directory, but cd cmd fails stopping further successful execution of other cmds. Tried in nodeJS shell as well as nodeJS+ExpressJS webserver.
推荐答案
每个命令在单独的shell中执行,所以第一个 cd
仅影响那个然后终止的shell进程。如果要在特定目录中运行 git
,只需要为您设置路径:
Each command is executed in a separate shell, so the first cd
only affects that shell process which then terminates. If you want to run git
in a particular directory, just have Node set the path for you:
exec('git status', {cwd: '/home/ubuntu/distro'}, /* ... */);
cwd
(当前工作目录) 许多可用于 exec
的选项。
cwd
(current working directory) is one of many options available for exec
.
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