1

I'm trying to run a child_process.execSync shell command in node.js like this:

function test() { return new Promise(function(resolve, reject) { var execSync = require('child_process').execSync; var result = execSync('some executable I manually installed', { encoding: 'utf8', silent: true }); if (result.search('something') > -1) { resolve("ok"); } else if (result.search('something else') { resolve("nok"); } else { reject(Error("ERROR")); } }); } test().then(function(result) { console.log(result); }, function(err) { console.log(err); });

However, I get the following error as an output. 

{ [Error: Command failed: my shell command] error: null, cmd: 'my shell command', file: '/bin/sh', args: [ '/bin/sh', '-c', 'my chell command' ], options: { silent: true, encoding: 'utf8', file: '/bin/sh', args: [ '/bin/sh', '-c', 'my shell command' ], envPairs: [ 'TERM_PROGRAM=Apple_Terminal', 'SHELL=/bin/bash', 'TERM=xterm-256color', 'TMPDIR=/var/folders/k5/qklhpvtj227_5vdnn2d_x6zr0000gn/T/', 'Apple_PubSub_Socket_Render=/private/tmp/com.apple.launchd.2zYqrvejoj/Render', 'TERM_PROGRAM_VERSION=361.1', 'OLDPWD=/usr/local/bin', 'TERM_SESSION_ID=8F8D0040-84DE-41F4-84E6-A9481A09CE73', 'USER=and', 'SSH_AUTH_SOCK=/private/tmp/com.apple.launchd.L5VoA4PiFl/Listeners', '__CF_USER_TEXT_ENCODING=0x1F5:0x0:0x0', 'PATH=/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin', 'PWD=/Users/and/Documents/', 'XPC_FLAGS=0x0', 'XPC_SERVICE_NAME=0', 'SHLVL=1', 'HOME=/Users/and', 'LOGNAME=and', 'LC_CTYPE=UTF-8', 'DISPLAY=/private/tmp/com.apple.launchd.rwoZybokZk/org.macosforge.xquartz:0', '_=/usr/local/bin/node' ], stdio: [ [Object], [Object], [Object] ] }, envPairs: [ 'TERM_PROGRAM=Apple_Terminal', 'SHELL=/bin/bash', 'TERM=xterm-256color', 'TMPDIR=/var/folders/k5/qklhpvtj227_5vdnn2d_x6zr0000gn/T/', 'Apple_PubSub_Socket_Render=/private/tmp/com.apple.launchd.2zYqrvejoj/Render', 'TERM_PROGRAM_VERSION=361.1', 'OLDPWD=/usr/local/bin', 'TERM_SESSION_ID=8F8D0040-84DE-41F4-84E6-A9481A09CE73', 'USER=and', 'SSH_AUTH_SOCK=/private/tmp/com.apple.launchd.L5VoA4PiFl/Listeners', '__CF_USER_TEXT_ENCODING=0x1F5:0x0:0x0', 'PATH=/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin', 'PWD=/Users/and/Documents/', 'XPC_FLAGS=0x0', 'XPC_SERVICE_NAME=0', 'SHLVL=1', 'HOME=/Users/and', 'LOGNAME=and', 'LC_CTYPE=UTF-8', 'DISPLAY=/private/tmp/com.apple.launchd.rwoZybokZk/org.macosforge.xquartz:0', '_=/usr/local/bin/node' ], stderr: '', stdout: '', pid: 16931, output: [ null, '', '' ], signal: null, status: 10 }

I think it has something to do with /bin/sh (I'm OS X by the way), but I don't know how to fix this. I can run the shell command in the Terminal just fine, it just won't work in node with execSync. Also, when I try to run execSync with a command that comes with OS X (like ls), it runs perfectly fine...

Can anybody help? Thanks!

Improve this question

1 Answer 1

Reset to default
1

if the last exec program return error code for example on this C code

#include <stdio.h> int main(void) { printf("hi"); return 1; }

the point is if the program not return 0 the node child_process throw error

My Solution:

const proc = require('child_process'); // just add " || true" after your command var output = proc.execSync('command || true');

it's work fine for me :)

Improve this answer
Sign up to request clarification or add additional context in comments.

1 Comment

Yes it's like false || true. but be careful with this because you are ignoring command exit error code.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.