我试图使用nohup命令通过ssh运行phantomjs
脚本。但是nohup引发了一个我在nohup.out
文件中找到的错误。
我的命令是 - >
nohup phantomjs example.js &
phantomjs example.js
在没有nohup的情况下完美运行。我还创建了一个bash脚本来运行nohup这个命令,但是两次都得到了这个错误 - >
events.js:72
throw er; // Unhandled 'error' event
^
Error: EBADF, read
** example.js的代码
var page = require('webpage').create(),
system = require('system'),
address, output, size;
if (system.args.length < 3 || system.args.length > 5) {
console.log('Usage: rasterize.js URL filename [paperwidth*paperheight|paperformat] [zoom]');
console.log(' paper (pdf output) examples: "5in*7.5in", "10cm*20cm", "A4", "Letter"');
console.log(' image (png/jpg output) examples: "1920px" entire page, window width 1920px');
console.log(' "800px*600px" window, clipped to 800x600');
phantom.exit(1);
} else {
address = system.args[1];
output = system.args[2];
page.viewportSize = { width: 600, height: 600 };
if (system.args.length > 3 && system.args[2].substr(-4) === ".pdf") {
size = system.args[3].split('*');
page.paperSize = size.length === 2 ? { width: size[0], height: size[1], margin: '0px' }
: { format: system.args[3], orientation: 'portrait', margin: '1cm' };
} else if (system.args.length > 3 && system.args[3].substr(-2) === "px") {
size = system.args[3].split('*');
if (size.length === 2) {
pageWidth = parseInt(size[0], 10);
pageHeight = parseInt(size[1], 10);
page.viewportSize = { width: pageWidth, height: pageHeight };
page.clipRect = { top: 0, left: 0, width: pageWidth, height: pageHeight };
} else {
console.log("size:", system.args[3]);
pageWidth = parseInt(system.args[3], 10);
pageHeight = parseInt(pageWidth * 3/4, 10); // it's as good an assumption as any
console.log ("pageHeight:",pageHeight);
page.viewportSize = { width: pageWidth, height: pageHeight };
}
}
if (system.args.length > 4) {
page.zoomFactor = system.args[4];
}
page.open(address, function (status) {
if (status !== 'success') {
console.log('Unable to load the address!');
phantom.exit();
} else {
window.setTimeout(function () {
page.render(output);
phantom.exit();
}, 200);
}
});
}
答案 0 :(得分:1)
与1.9.8和casperjs 1.1.0-beta3有同样的问题。 我需要让这个过程在后台进行转换,所以不是nohup-ing我所做的是启动并分离过程:
<Ctrl+Z>
bg
disown %1
答案 1 :(得分:0)
似乎phanomjs需要输入,这很有效:
phantomjs script.js > log 2>&1 < /dev/null &