CentOS 6
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Use SSHPass2015/04/12

 
Use SSHPass to automate inputting password on password authentication.
This is convenient but has security risks for leak of password, take special care if you use it.
[1] Install SSHPass.
# install from EPEL

[root@dlp ~]#
yum --enablerepo=epel -y install sshpass
[2] How to use SSHPass.
# -p password : from argument

[cent@dlp ~]$
sshpass -p password ssh 10.0.0.51 hostname

node01.srv.world
# -f file : from file

[cent@dlp ~]$
echo 'password' > sshpass.txt

[cent@dlp ~]$
chmod 600 sshpass.txt

[cent@dlp ~]$
sshpass -f sshpass.txt ssh 10.0.0.51 hostname

node01.srv.world
# -e : from env variable

[cent@dlp ~]$
export SSHPASS=password

[cent@dlp ~]$
sshpass -e ssh 10.0.0.51 hostname

node01.srv.world
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