我是一个完全初学者编程bash脚本(Linux,Debian),我想写的一个用途是让用户能够下载JPG或任何其他类型的图形文件,他需要从网站,如./code1.sh www.bbc.com。它不解释一个网站的入口,一个错误显示:there is no such a file or catalog like www.bbc.com。你能告诉我我做错了什么吗?
#!/bin/bash
$1
curl $1 | grep -o -e `$1.\{1,100\}\.jpg` > graph_list.txt
wget `cat graph_list.txt`
我正在使用
当我调用这个函数时,我得到了错误消息。
Notice: Undefined offset: 1 in <PATH>ServiceDesk.php on line 15
Notice: Undefined offset: 1 in <PATH>ServiceDesk.php on line 15
Notice: Undefined offset: 1 in <PATH>ServiceDesk.php on line 17
以下是代码
function pushMeTo($widgeturl,$text,$signature) {
$ag
在无法在中找出我的应用程序中发生了什么之后,我尝试在我的pc上复制它,使用valgrind来查找内存/多线程问题。我在很多地方看到过这样的情况:
==769== Possible data race during write of size 4 at 0xACD3ADC by thread #13
==769== Locks held: none
==769== at 0x4C36067: memset (in /usr/lib/valgrind/vgpreload_helgrind-amd64-linux.so)
==769== by 0x4E4570D: pthread_cre
我试图通过cURL从一个登录页面从网站抓取收入。我知道这是一种草率的方式,但我别无选择。
<?php
$username = "example";
$password = "example";
$postfields = "email=$username&password=$password";
// Use Curl to return the raw source of a webpage to a variable called
$ch = curl_init();
//curl_setopt($ch, CURLOPT_HE
在Ubuntu 14.04中,当我尝试使用curl时,我得到以下消息:
curl www.google.com
curl: /usr/local/lib/libldap_r-2.4.so.2: no version information available (required by /usr/lib/x86_64-linux-gnu/libcurl.so.4)
curl: /usr/local/lib/liblber-2.4.so.2: no version information available (required by /usr/lib/x86_64-linux-gnu/libcur
更新Yahoo错误
好的,我把它都弄好了,但是preg_match_all对雅虎不起作用。如果你看一下:,然后你可以在他们的html中看到,他们有<span class="url" id="something random"> the actual link </span>,但当我尝试preg_match_all时,我得不到任何结果。
preg_match_all('#<span class="url" id="(.*)">(.+?)</span>#si', $url
问题
无法安装一些R软件包(统计编程语言),因为从16.04更新到Ubuntu18.04。这个问题与共享库libcurl的使用有关。更确切地说:
/usr/lib/x86_64-linux-gnu/libcurl.so.4: version `CURL_OPENSSL_3' not
found (required by /home/avila/R/x86_64-pc-linux-gnu-library/3.4/curl
/libs/curl.so)
,我试过了.
..。使用sudo apt-get install libcurl3安装以前版本的libcurl,但是在过程中卸载了
我试图对用户进行身份验证,然后提供所请求的文件。
网址:http://example.com/stream/asd.m3u8
静态文件:/stream/asd.m3u8 (/ = Linux文件系统的根)
location ~ /stream/(.*)\.m3u8 {
# authentication happens here, but commented out
for debugging, and had the results below;
alias /stream/;
# 403 Forbidden (the directory and content
我正在使用以下代码登录到asp网站,但它不工作。
<?php
/************************************************
* ASP.NET web site scraping script;
* Developed by MishaInTheCloud.com
* Copyright 2009 MishaInTheCloud.com. All rights reserved.
* The use of this script is governed by the CodeProject Open License
* See the followi