ssh 登陆不能在命令行中指定密码,sshpass 的出现则解决了这一问题。它允许你用 -p 参数指定明文密码,然后直接登录远程服务器,它支持密码从命令行、文件、环境变量中读取。

安装

1、下载sshpass的安装包,并进行解压、编译……

[root@node1 home]# wget http://sourceforge.net/projects/sshpass/files/sshpass/1.05/sshpass-1.05.tar.gz
[root@node1 home]# tar xvzf sshpass-1.05.tar.gz
[root@node1 home]# cd sshpass-1.05
[root@node1 sshpass-1.05]# ll
总用量 396
-rw-r--r-- 1 1000 1000 35029 8月 6 2011 aclocal.m4
-rw-r--r-- 1 1000 1000 700 7月 22 2010 AUTHORS
-rw-r--r-- 1 1000 1000 1455 8月 6 2011 ChangeLog
-rw-r--r-- 1 1000 1000 4107 8月 6 2011 config.h.in
-rwxr-xr-x 1 1000 1000 201436 8月 6 2011 configure
-rw-r--r-- 1 1000 1000 865 8月 6 2011 configure.ac
-rw-r--r-- 1 1000 1000 17992 7月 22 2010 COPYING
-rwxr-xr-x 1 1000 1000 18615 8月 5 2011 depcomp
-rw-r--r-- 1 1000 1000 15578 8月 5 2011 INSTALL
-rwxr-xr-x 1 1000 1000 13663 8月 5 2011 install-sh
-rw-r--r-- 1 1000 1000 13179 8月 6 2011 main.c
-rw-r--r-- 1 1000 1000 145 7月 22 2010 Makefile.am
-rw-r--r-- 1 1000 1000 22973 8月 6 2011 Makefile.in
-rwxr-xr-x 1 1000 1000 11419 8月 5 2011 missing
-rw-r--r-- 1 1000 1000 213 7月 22 2010 NEWS
-rw-r--r-- 1 1000 1000 0 7月 22 2010 README
-rw-r--r-- 1 1000 1000 4742 8月 6 2011 sshpass.1 [root@node1 sshpass-1.05]# ./configure
[root@node1 sshpass-1.05]# make
[root@node1 sshpass-1.05]# make install

2、然后执行sshpass,可以查看到相关的帮助信息

[root@node1 sshpass-1.05]# sshpass
Usage: sshpass [-f|-d|-p|-e] [-hV] command parameters
-f filename Take password to use from file
-d number Use number as file descriptor for getting password
-p password Provide password as argument (security unwise)
-e Password is passed as env-var "SSHPASS"
With no parameters - password will be taken from stdin -h Show help (this screen)
-V Print version information
At most one of -f, -d, -p or -e should be used
[root@node1 sshpass-1.05]#

使用

# 使用sshpass访问node2节点并执行hostname命令
[root@node1 sshpass-1.05]# sshpass -p 'harley' ssh root@192.168.56.112 "hostname"
node2
[root@node1 sshpass-1.05]#

可以通过sshpass进行一套未配置免密的集群的基础环境检查等批量操作。

Q&A

Q1:执行 ./configure编译时报错

[root@node1 sshpass-1.05]# ./configure
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for style of include used by make... GNU
checking for gcc... no
checking for cc... no
checking for cl.exe... no
configure: error: in `/home/0-transwarp-home/sshpass-1.05':
configure: error: no acceptable C compiler found in $PATH
See `config.log' for more details

然后根据 checking for gcc... no检查了gcc的安装情况,然后安装了gcc

[root@node1 sshpass-1.05]# yum list installed | grep gcc
libgcc.x86_64 4.4.7-4.el6 @anaconda-CentOS-201311272149.x86_64/6.5
[root@node1 sshpass-1.05]#
[root@node1 sshpass-1.05]# yum provides gcc
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
gcc-4.4.7-4.el6.x86_64 : Various compilers (C, C++, Objective-C, Java, ...)
Repo : os65
Matched from:
[root@node1 sshpass-1.05]# yum install gcc
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package gcc.x86_64 0:4.4.7-4.el6 will be installed
--> Processing Dependency: cpp = 4.4.7-4.el6 for package: gcc-4.4.7-4.el6.x86_64
--> Processing Dependency: cloog-ppl >= 0.15 for package: gcc-4.4.7-4.el6.x86_64
--> Running transaction check
---> Package cloog-ppl.x86_64 0:0.15.7-1.2.el6 will be installed
--> Processing Dependency: libppl_c.so.2()(64bit) for package: cloog-ppl-0.15.7- 1.2.el6.x86_64
--> Processing Dependency: libppl.so.7()(64bit) for package: cloog-ppl-0.15.7-1. 2.el6.x86_64
---> Package cpp.x86_64 0:4.4.7-4.el6 will be installed
--> Processing Dependency: libmpfr.so.1()(64bit) for package: cpp-4.4.7-4.el6.x8 6_64
--> Running transaction check
---> Package mpfr.x86_64 0:2.4.1-6.el6 will be installed
---> Package ppl.x86_64 0:0.10.2-11.el6 will be installed
--> Finished Dependency Resolution Dependencies Resolved ================================================================================
Package Arch Version Repository Size
================================================================================
Installing:
gcc x86_64 4.4.7-4.el6 os65 10 M
Installing for dependencies:
cloog-ppl x86_64 0.15.7-1.2.el6 os65 93 k
cpp x86_64 4.4.7-4.el6 os65 3.7 M
mpfr x86_64 2.4.1-6.el6 os65 157 k
ppl x86_64 0.10.2-11.el6 os65 1.3 M Transaction Summary
================================================================================
Install 5 Package(s) Total download size: 15 M
Installed size: 33 M
Is this ok [y/N]: y
Downloading Packages:
--------------------------------------------------------------------------------
Total 75 MB/s | 15 MB 00:00
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : mpfr-2.4.1-6.el6.x86_64 1/5
Installing : cpp-4.4.7-4.el6.x86_64 2/5
Installing : ppl-0.10.2-11.el6.x86_64 3/5
Installing : cloog-ppl-0.15.7-1.2.el6.x86_64 4/5
Installing : gcc-4.4.7-4.el6.x86_64 5/5
Verifying : gcc-4.4.7-4.el6.x86_64 1/5
Verifying : ppl-0.10.2-11.el6.x86_64 2/5
Verifying : cloog-ppl-0.15.7-1.2.el6.x86_64 3/5
Verifying : mpfr-2.4.1-6.el6.x86_64 4/5
Verifying : cpp-4.4.7-4.el6.x86_64 5/5 Installed:
gcc.x86_64 0:4.4.7-4.el6 Dependency Installed:
cloog-ppl.x86_64 0:0.15.7-1.2.el6 cpp.x86_64 0:4.4.7-4.el6
mpfr.x86_64 0:2.4.1-6.el6 ppl.x86_64 0:0.10.2-11.el6 Complete!
[root@node1 sshpass-1.05]#

再次执行 ./configure 编译时,发现内容比较多,看上去很正常,就继续往下走了。

[root@node1 sshpass-1.05]# ./configure
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for style of include used by make... GNU
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking dependency style of gcc... gcc3
checking how to run the C preprocessor... gcc -E
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking minix/config.h usability... no
checking minix/config.h presence... no
checking for minix/config.h... no
checking whether it is safe to define __EXTENSIONS__... yes
checking for gcc... (cached) gcc
checking whether we are using the GNU C compiler... (cached) yes
checking whether gcc accepts -g... (cached) yes
checking for gcc option to accept ISO C89... (cached) none needed
checking dependency style of gcc... (cached) gcc3
checking for ANSI C header files... (cached) yes
checking for sys/wait.h that is POSIX.1 compatible... yes
checking fcntl.h usability... yes
checking fcntl.h presence... yes
checking for fcntl.h... yes
checking for stdlib.h... (cached) yes
checking for string.h... (cached) yes
checking sys/ioctl.h usability... yes
checking sys/ioctl.h presence... yes
checking for sys/ioctl.h... yes
checking for unistd.h... (cached) yes
checking termios.h usability... yes
checking termios.h presence... yes
checking for termios.h... yes
checking for an ANSI C-conforming const... yes
checking for pid_t... yes
checking for ssize_t... yes
checking vfork.h usability... no
checking vfork.h presence... no
checking for vfork.h... no
checking for fork... yes
checking for vfork... yes
checking for working fork... yes
checking for working vfork... (cached) yes
checking whether gcc needs -traditional... no
checking for stdlib.h... (cached) yes
checking for GNU libc compatible malloc... yes
checking sys/select.h usability... yes
checking sys/select.h presence... yes
checking for sys/select.h... yes
checking sys/socket.h usability... yes
checking sys/socket.h presence... yes
checking for sys/socket.h... yes
checking types of arguments for select... int,fd_set *,struct timeval *
checking return type of signal handlers... void
checking for select... yes
checking for posix_openpt... yes
checking for strdup... yes
configure: creating ./config.status
config.status: creating Makefile
config.status: creating config.h
config.status: executing depfiles commands
[root@node1 sshpass-1.05]#

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