[root@mini1 ~]# history |grep yum   40  yum repolist   42  cd /etc/yum.repos.d/   49  yum clean all   50  yum repolist   51  yum install -y httpd   52  yum repolist   53  yum list   54  yum list|wc   55  yum install vim-X11.i686 vim-common.i686 vim-enhanced.i686   56  man yum   58  yum search man   59  yum install man.i686   60  man yum   61  yum search jdk   62  yum search tomcat   67  yum install lrzsz.i686   71  yum install openssh-clients.i686   86  yum search mysql   88  yum install mysql-server.i686  168  yum search pgm  195  yum search jstack  341  yum search gdb  342  yum install gdb.i686  482  yum search gcc  483  yum repolist  484  vim /etc/yum.repos.d/  486  vim /etc/yum.repos.d/CentOS-Media.repo  487  yum search gcc  488  yum install gcc  642  yum search pcre  643  yum install pcre-devel  645  yum install pcre-devel  647  yum search zlib  648  yum install zlib-devel  742  yum search traceroute  743  yum install traceroute  794  history |grep yum