dsh批量管理linux服务器
一，安装dsh
切换到root用户，然后切换到work_home_yourname
wget http://www.netfort.gr.jp/~dancer/software/downloads/libdshconfig-0.20.9.tar.gz
tar zxvf libdshconfig-0.20.9.tar.gz
cd libdshconfig-0.20.9
./configure
出错记得修复（Ubuntu: configure error: C++ preprocessor "/lib/cpp" fails sanity check
apt-get install build-essential）
make && make install
wget http://www.netfort.gr.jp/~dancer/software/downloads/dsh-0.25.9.tar.gz
tar zxvf dsh-0.25.9.tar.gz
cd dsh-0.25.9
./configure
make && make install
ln -s /usr/local/lib/libdshconfig.so.1 /lib/
echo "/usr/local/lib/libdshconfig.so.1">> /etc/ld.so.conf
ldconfig
[root@localhost ~]# which dsh
/usr/local/bin/dsh
二，用法介绍：
切换回需要的用户.
mkdir .dsh
cd .dsh
touch how-to-use,内容如下：
dsh -M -r ssh -f file目录 --命令
dsh --help
-v –verbose Verbose output 详细模式输出
-q –quiet Quiet 安静模式输出
-M –show-machine-names Prepend the host name on output显示被控制主机的hostname
-H –hide-machine-names Do not prepend host name on output 不显示主机名（default）
-i –duplicate-input Duplicate input given to dsh
-b –bufsize Change buffer size used in input duplication
-m –machine [machinename] Execute on machine 主机名
-n –num-topology How to divide the machines
-a –all Execute on all machines 主机列表，默认列表在/root/.dsh/machines.list
-g –group [groupname] Execute on group member 指定主机名组,主机名组在/root/.dsh/group/
-f –file [file] Use the file as list of machines 选择主机列表
-r –remoteshell [shellname] Execute using shell (rsh/ssh) 指定远程工具，默认为rsh
-o –remoteshellopt [option] Option to give to shell
-h –help Give out this message
-w –wait-shell Sequentially execute shell 指定顺序运行，默认是并行
-c –concurrent-shell Execute shell concurrently
-F –forklimit [fork limit] Concurrent with limit on number
-V –version Give out version information
三，应用举例：
dsh -M -r ssh -m ~/a.txt -- hostname