How can I loggin from VM1 to VM2 using script?












0















I am using script to loggin my VM2 from VM1 (Password of the VM2: fifa):



for i in {a..z}{a..z}{a..z}{a..z} 

do

# $i as a password

ssh root@ipaddress

read i

echo $i

done


bit it doesn't work. It always ask me to enter the password.
How can I make it to enter password automatically?










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  • If any of the existing answers solved your problem, please consider accepting it by clicking on the checkmark next to it. Thank you!

    – Jeff Schaller
    Jun 11 '17 at 12:18
















0















I am using script to loggin my VM2 from VM1 (Password of the VM2: fifa):



for i in {a..z}{a..z}{a..z}{a..z} 

do

# $i as a password

ssh root@ipaddress

read i

echo $i

done


bit it doesn't work. It always ask me to enter the password.
How can I make it to enter password automatically?










share|improve this question

























  • If any of the existing answers solved your problem, please consider accepting it by clicking on the checkmark next to it. Thank you!

    – Jeff Schaller
    Jun 11 '17 at 12:18














0












0








0


1






I am using script to loggin my VM2 from VM1 (Password of the VM2: fifa):



for i in {a..z}{a..z}{a..z}{a..z} 

do

# $i as a password

ssh root@ipaddress

read i

echo $i

done


bit it doesn't work. It always ask me to enter the password.
How can I make it to enter password automatically?










share|improve this question
















I am using script to loggin my VM2 from VM1 (Password of the VM2: fifa):



for i in {a..z}{a..z}{a..z}{a..z} 

do

# $i as a password

ssh root@ipaddress

read i

echo $i

done


bit it doesn't work. It always ask me to enter the password.
How can I make it to enter password automatically?







linux shell-script






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edited Jan 11 at 11:30









Kusalananda

124k16234385




124k16234385










asked Jun 9 '15 at 0:21









InvokerInvoker

86711121




86711121













  • If any of the existing answers solved your problem, please consider accepting it by clicking on the checkmark next to it. Thank you!

    – Jeff Schaller
    Jun 11 '17 at 12:18



















  • If any of the existing answers solved your problem, please consider accepting it by clicking on the checkmark next to it. Thank you!

    – Jeff Schaller
    Jun 11 '17 at 12:18

















If any of the existing answers solved your problem, please consider accepting it by clicking on the checkmark next to it. Thank you!

– Jeff Schaller
Jun 11 '17 at 12:18





If any of the existing answers solved your problem, please consider accepting it by clicking on the checkmark next to it. Thank you!

– Jeff Schaller
Jun 11 '17 at 12:18










1 Answer
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It's asking you to enter "the password" because of the read i statement, which is clobbering your for loop variable. I believe the ssh client tries to read from the tty; I'm not aware of a direct way to pass a password to ssh. Alternatives include sshpass and expect. See SSH login with clear text password as a parameter? and https://stackoverflow.com/questions/233217/pass-password-to-su-sudo-ssh and https://stackoverflow.com/questions/12118308/command-line-to-execute-ssh-with-password-authentication






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    It's asking you to enter "the password" because of the read i statement, which is clobbering your for loop variable. I believe the ssh client tries to read from the tty; I'm not aware of a direct way to pass a password to ssh. Alternatives include sshpass and expect. See SSH login with clear text password as a parameter? and https://stackoverflow.com/questions/233217/pass-password-to-su-sudo-ssh and https://stackoverflow.com/questions/12118308/command-line-to-execute-ssh-with-password-authentication






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      It's asking you to enter "the password" because of the read i statement, which is clobbering your for loop variable. I believe the ssh client tries to read from the tty; I'm not aware of a direct way to pass a password to ssh. Alternatives include sshpass and expect. See SSH login with clear text password as a parameter? and https://stackoverflow.com/questions/233217/pass-password-to-su-sudo-ssh and https://stackoverflow.com/questions/12118308/command-line-to-execute-ssh-with-password-authentication






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        It's asking you to enter "the password" because of the read i statement, which is clobbering your for loop variable. I believe the ssh client tries to read from the tty; I'm not aware of a direct way to pass a password to ssh. Alternatives include sshpass and expect. See SSH login with clear text password as a parameter? and https://stackoverflow.com/questions/233217/pass-password-to-su-sudo-ssh and https://stackoverflow.com/questions/12118308/command-line-to-execute-ssh-with-password-authentication






        share|improve this answer















        It's asking you to enter "the password" because of the read i statement, which is clobbering your for loop variable. I believe the ssh client tries to read from the tty; I'm not aware of a direct way to pass a password to ssh. Alternatives include sshpass and expect. See SSH login with clear text password as a parameter? and https://stackoverflow.com/questions/233217/pass-password-to-su-sudo-ssh and https://stackoverflow.com/questions/12118308/command-line-to-execute-ssh-with-password-authentication







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        edited May 23 '17 at 12:39









        Community

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        answered Jun 9 '15 at 0:40









        Jeff SchallerJeff Schaller

        39.3k1054125




        39.3k1054125






























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