摘要：
Ubuntu 10.04 LTS 安装sun-java6-jdk ，出现错误。Reading package lists... DoneBuilding dependency treeReading state information... DonePackage sun-java6-jdk is not available, but is referred to by another package.This may mean that the package is missing, has been obsoleted, oris only available from another s 阅读全文
摘要：
下面总结一下git reset的各个选项吧：1 git reset –soft 只撤销commit，保留working tree和index file。2 git reset –hard 撤销commit、index file和working tree，即撤销销毁最近一次的commit3 git reset –mixed 撤销commit和index file，保留working tree4 git reset和git reset –mixed完全一样5 git reset –用于删除登记在index file里的某个文件。 阅读全文