Have work on CentOS release 6.3 (Final) system. And try to ssh another machine using sshpass utility like
sshpass -p 'password' ssh user@host
But it give me error like
sshpass: Failed to run command: No such file or directory
So from error i think that sshpass may be not install so have try to install it by yum install sshpass and get following log
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
* base: mirror.leapswitch.com
* epel: epel.mirror.net.in
* extras: mirror.leapswitch.com
* nux-libreoffice.org-rpms: mirror.li.nux.ro
* updates: mirror.leapswitch.com
Setting up Install Process
Package sshpass-1.05-1.el6.i686 already installed and latest version
Nothing to do
from above it seems sshpass is already installed.So why it not working?
Check if your shell knows the locations of sshpass
which sshpass
If it doesnt give any output use find command to find the location of the executable:
find / -name sshpass
If you find the path, you can either use the full path of the executable:
/path/to/sshnpass
Or add the path to the PATH environmental variable, so that your shell can locate it:
export PATH=$PATH:/path/to/
Or the issue might be completely different. sshpass might not be able to find some other dependency. "ssh" client might not be installed. Or your syntax might be wrong:
来源：https://stackoverflow.com/questions/21375125/unable-to-run-sshpass-command-in-centos