Bash, aka the Bourne-Again Shell, has a newly discovered security hole. And, for many Unix or Linux Web servers, it's a major problem. The flaw involves how Bash evaluates environment variables. With ...
摘要:程序员都知道,Linux 不是 Unix,不过二者之间确实存在关系,即 Linux 系统是从 Unix 派生出来的,而 Linux是一个类 Unix 的操作系统。那么,二者之间具体存在哪些明显的差异呢? 网上很多有关POSIX和Unix工具的教程和指南总是假设你安装了Linux,或者更具体地 ...
如果你是位二、三十岁的软件开发人员,那么你已经成长在一个由Linux主导的世界。数十年来,它一直是数据中心的重要参与者,尽管很难找到明确的操作系统市场份额报告,但Linux的数据中心操作系统份额可能高达70%,而Windows及其变体几乎涵盖了所有剩余的百分比 ...
对于什么是终端,我们先看一个定义。可以看出终端就是一个输入输出设备,简单的可以理解为鼠标,键盘和显示器。但是这个好像跟Linux中终端的概念有些出入,下面听我来娓娓道来。 a combination of a keyboard and output device (such as a video display unit) by which data can be ...
A critical remote code execution vulnerability in Bash, present in almost all Linux, UNIX and Mac OS X deployments, has been discovered. Experts advise immediate patching. A critical vulnerability in ...
GUIs are great—we wouldn’t want to live without them. But if you’re a Mac or Linux user and you want to get the most out of your operating system (and your keystrokes), you owe it to yourself to get ...
这是一个简单的shell程序,我觉得已经没什么问题了,在linux下执行 请高手指点一下,谢谢了。。。。