Question

下面我有一个带换行符的字符串，这个字符串是一个bash文件的内容。我想知道是否有办法在不创建bash文件的情况下运行此内容。我想做类似下面的事情，我只是将内容传递给sh命令。但是这会引发下面的错误。

let string = "\necho \'hello-world\'\n"

execAsync(`${string} | sh`)

我知道我可以使用等于当前工作目录/删除文件的路径创建临时文件/ exec。但是，如果有办法在不创建文件的情况下运行脚本，我宁愿不去解决问题。

错误：

{ Error: Command failed: 
echo 'hello-world'
 | sh
/bin/sh: -c: line 2: syntax error near unexpected token `|'
/bin/sh: -c: line 2: ` | sh'

    at ChildProcess.exithandler (child_process.js:207:12)
    at emitTwo (events.js:106:13)
    at ChildProcess.emit (events.js:191:7)
    at maybeClose (internal/child_process.js:852:16)
    at Socket.<anonymous> (internal/child_process.js:323:11)
    at emitOne (events.js:96:13)
    at Socket.emit (events.js:188:7)
    at Pipe._handle.close [as _onclose] (net.js:492:12)
  cause: 
   { Error: Command failed: 
   echo 'hello-world'
    | sh
   /bin/sh: -c: line 2: syntax error near unexpected token `|'
   /bin/sh: -c: line 2: ` | sh'

       at ChildProcess.exithandler (child_process.js:207:12)
       at emitTwo (events.js:106:13)
       at ChildProcess.emit (events.js:191:7)
       at maybeClose (internal/child_process.js:852:16)
       at Socket.<anonymous> (internal/child_process.js:323:11)
       at emitOne (events.js:96:13)
       at Socket.emit (events.js:188:7)
       at Pipe._handle.close [as _onclose] (net.js:492:12)
     killed: false,
     code: 2,
     signal: null,
     cmd: '\necho \'hello-world\'\n | sh' },
  isOperational: true,
  killed: false,
  code: 2,
  signal: null,
  cmd: '\necho \'hello-world\'\n | sh' }

Answer 1

通过-c选项将脚本内容传递给shell。它受到大多数炮弹的支持。

示例：

var execAsync = require('exec-async');

let script = "echo \'hello\' $(whoami)\nls -l\necho 'bye'"

execAsync('sh', ['-c', script]).then(console.log).catch(console.log);

在节点中创建bash文件的子进程

1 个答案: