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git 初始化git存储库How to test whether the git repository is dirty? 如何测试git 存储库是否脏?git status can show this. But how to diagrammatically detect this in bash? git status可以显示这一点。 但是如何在bash中以图形方式检测到这一点呢?Th...
hadoop发行版本The download page of Hadoop http://hadoop.apache.org/releases.html only contains several recent release packages. I would like to download some old release packages such as Hadoop 2.5.0 whic
如何修改git的全局用户名How to set the global user name and user email for git? 如何为git设置全局用户名和用户电子邮件 ?We may be asked to set our global user name and user email if it is the first time that we use git on a mac..
hadoop基准测试TeraSort is one of Hadoop’s widely used benchmarks. Hadoop’s distribution contains both the input generator and sorting implementations: the TeraGen generates the input and TeraSort conducts
虚拟机虚拟化cpu性能Most time, we need to tune system parameters to achieve better performance but what the general parameters to be tuned in Linux systems. 大多数时候,我们需要调整系统参数以获得更好的性能,但是需要调整Linux 系统中的一般参数。I th..
kvm创建虚拟机硬盘大小I test it for qcow2 format. Other formats are TBA. 我测试它的qcow2格式。 其他格式为TBA。qemu-img resize kvm1.qcow2 +20Gcp kvm1.qcow2 kvm1-orig.qcow2virt-resize --expand /dev/sda1 kvm1-orig.qco...
linux更改用户的uidHow to find and change a user’s UID on Linux? 如何在Linux上查找和更改用户的UID?Find the UID of a user: 查找用户的UID:id -u $USER_NAMEChange a user’s UID: 更改用户的UID:# usermod -u $NEW_UID $USER_NAMEAns...
linux用户是否存在How to test whether a user account, say linuxuser, already exist on Linux? 如何测试Linux上是否已经存在用户帐户(例如linuxuser)?You may make use of id which tries to get user IDs. 您可以利用ID尝试获取用户ID。The Bash...
How to set Google Chrome’s proxy settings in command line on Linux? I am using Google Chrome on Linux and start it by google-chrome. How can I set the proxy using the command line? It tell me that my
How to install the gfortran fortran compiler on CentOS 7 Linux? 如何在CentOS 7 Linux上安装gfortran fortran编译器?gfortran on CentOS 7 is provided in the gcc-gfortran package. You may install it to install gf..