i wonder what may be wrong here
I do an sftp expect script which will prompt me for password, but never seems to send the password in. Or if it does send it encrypted, we still do not get to the sftp prompt. Any ideas?
cd /proj/eiffel004_config_fem107/slaves/RHEL6.4_GE_3/workspace/Remote_Agent_Test/
/usr/bin/expect << 'EOF'
set timeout -1
spawn sftp root#server
expect {
"*assword: "
}
send "thePassword \r"
expect {
"sftp> "
}
send "put filename \r"
expect {
"100"
}
send "exit \r"
EOF
Output is
+ cd /proj/eiffel004_config_fem107/slaves/RHEL6.4_GE_3/workspace/Remote_Agent_Test/
+ /usr/bin/expect
spawn sftp root#server
Connecting to server...
Warning: Permanently added 'server,102.44.79.32' (RSA) to the list of known
hosts.
root#server's password:
Related
I am trying to have an expect script inside a bash to login to a router, execute a command and store output in a text file.
#!/usr/bin/bash
FQDN=$1
LogFile=/tmp/Router_${FQDN}.txt
> $LogFile
expect -d <<EOF > $LogFile
set timeout 20
set FQDN [lindex $argv 0]
set Username "user"
set Password "***$$$"
spawn ssh $Username#$FQDN
expect "*assword:"
send "$Password\r"
expect "#"
send "some command\r"
expect "#"
send "exit\r"
sleep 1
exit
expect eof
EOF
cat $LogFile
I am getting the below error message.
system personnel =\r\r\n= may provide the evidence of such monitoring to law enforcement officials. =\r\r\n=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==\r\r\npassword: "
send: sending "\n" to { exp6 }
expect: does "" (spawn_id exp6) match glob pattern "#"? no
password:
Enter old password:
Based on the error it appears that script is hitting the {return} key "\r" which is not to be sent at password prompt.
I don't have a return once i ssh. Not sure where i am going wrong.
This is my expect script which is working fine. Its only when i code this inside a bash script its failing.
#!/usr/bin/expect -f
set timeout 20
set FQDN [lindex $argv 0]
set Username "user"
set Password "***$$$"
spawn ssh -o "StrictHostKeyChecking no" $Username#$FQDN
expect "*assword: "
send "$Password\r"
expect "#"
send "some command\r"
expect "#"
send "exit\r"
sleep 1
exit
-Abhi
In a here-doc, variables like $Username and $Password are being expanded by the shell, so they're not seen as literals for Expect to expand. Since those shell variables aren't set anywhere, they're being expanded to null strings. As a result, it's executing ssh #$FQDN and sending an empty password.
You need to escape the $ so that Expect can process them.
You also don't need the set FQDN line in the Expect script, since you're using the shell variable for that.
#!/usr/bin/bash
FQDN=$1
LogFile=/tmp/Router_${FQDN}.txt
> $LogFile
expect -d <<EOF > $LogFile
set timeout 20
set Username "user"
set Password "***$$$"
spawn ssh \$Username#$FQDN
expect "*assword:"
send "\$Password\r"
expect "#"
send "some command\r"
expect "#"
send "exit\r"
sleep 1
exit
expect eof
EOF
cat $LogFile
Or you could set them as shell variables, just like FQDN.
#!/usr/bin/bash
FQDN=$1
Username=user
Password="***$$$"
LogFile=/tmp/Router_${FQDN}.txt
> $LogFile
expect -d <<EOF > $LogFile
set timeout 20
spawn ssh $Username#$FQDN
expect "*assword:"
send "$Password\r"
expect "#"
send "some command\r"
expect "#"
send "exit\r"
sleep 1
exit
expect eof
EOF
cat $LogFile
Im trying to compile a script that establishes an ssh connecting with a remote machine and searches multiple log files for error messages, my current code is the following:
#!/bin/bash
expect <<-EOF > /home/file
set timeout 3
spawn ssh -oPort=port ip zgrep "error" /dir/dir/file.gz.\[54321\]
expect "Are you sure you want to continue connecting (yes/no)?" { send "yes\r" }
expect "*password: " { send "password\r" }
expect "*#" { send "exit\r" }
EOF
expect <<-EOF >> /home/file
set timeout 3
spawn ssh -oPort=port ip zgrep "error" /dir/dir/file1.gz.\[54321\]
expect "Are you sure you want to continue connecting (yes/no)?" { send "yes\r" }
expect "*password: " { send "password\r" }
expect "*#" { send "exit\r" }
EOF
expect <<-EOF >> /home/file
set timeout 3 ip
spawn ssh -oPort=port ip grep error /dir/dir/file
expect "Are you sure you want to continue connecting (yes/no)?" { send "yes\r" }
expect "*password: " { send "password\r" }
expect "*#" { send "exit\r" }
EOF
expect <<-EOF >> /home/file
set timeout 3
spawn ssh -oPort=port ip grep error /dir/dir/file1
expect "Are you sure you want to continue connecting (yes/no)?" { send "yes\r" }
expect "*password: " { send "password\r" }
expect "*#" { send "exit\r" }
EOF
Now have you may have noticed i connect to the machine 4 times, which feels so inefficient, i have tried to put all of this log searches into 1 ssh connection, like the following:
expect <<-EOF > /home/file
set timeout 3
spawn ssh -oPort=port ip zgrep "error" /dir/dir/file.gz.\[54321\]
expect "Are you sure you want to continue connecting (yes/no)?" { send "yes\r" }
expect "*password: " { send "password\r" }
expect "*#" { send "grep error /dir/dir/file1\r" }
expect "*#" { send "exit\r" }
EOF
but when i try this i get the error
spawn id exp4 not open
while executing
"expect "*#" { send "grep error /dir/dir/file1\r" }"
What is wrong with this code that make it output this error,
All help appreciated
You can use a single command to do all the work required in one expect session:
expect <<-EOF > /home/file
set timeout 3
spawn ssh -oPort=port ip "zgrep error /dir/dir/file.gz.[54321] ; zgrep error /dir/dir/file1.gz.[54321] ; grep error /dir/dir/file ; grep error /dir/dir/file1"
expect "Are you sure you want to continue connecting (yes/no)?" { send "yes\r" }
expect "*password: " { send "password\r" }
expect "*#" { send "exit\r" }
EOF
You will need to modify your quotation " marks and escape characters \ so that the remote shell does not to interpret them. There is no need to wrap the string error in quotation marks.
I have a bash script that calls an expect script with a password that initiates the ssh process:
#!/usr/bin/bash
/usr/bin/expect $PWD/sshScript.exp $SSHPASSWORD
The expect script calls the ssh command, waits for prompt to enter password and sends in the password.
#!/usr/bin/expect
set password [lindex $argv 0];
spawn ssh -o "StrictHostKeyChecking no" username#host
expect "Enter your AD Password:" {
send "$password\r"
}
I can get the remote server to ssh correctly and display the [user#host ~]$ but I want to add to the expect script a way to automatically run a bash script that is stored in the same location as the other two scripts.
I've tried to
a) scp the file to the remote and call it in the server but I can't seem to get expect to send any text pass the password
b) do spawn ssh -o "StrictHostKeyChecking no" username#host < secondscript.shto send in the script to run but it won't wait for the password to be entered before trying to run the script.
You may combine you bash and expect script together and use it to copy the 3rd bash script to the remote server, execute it and return the output.
Here's a simple NON-TESTED example:
#!/bin/bash
[... other bash code here ...]
SCRIPT='/path/to/script/to/run/remotely.sh'
LOGIN='test'
IP='your ip or hostname'
LOCATION='/destination/path/to/script/to/run/remotely.sh'
### start expect part here, you may add '-d' after 'expect' for debug
/usr/bin/expect << EOD
### set a 3 minute timeout
set timeout 180
### copy the script you wish to run on the remote machine
spawn scp -o StrictHostKeyChecking=no -p $SCRIPT $LOGIN#$IP:$LOCATION
expect {
timeout { send_user "\n# TIMED OUT. HOST NOT REACHABLE #\n"; exit 3 }
"*assword: "
}
send "your_password\r"
expect {
"*assword: " { send_user "\n# Incorrect Password. Login Failed. #\n"; exit 4 }
"100%" { send_user "\nFile copied\n" }
}
### ssh to remote server to run script
spawn ssh $LOGIN#$IP
expect {
timeout { send_user "\n# TIMED OUT. SSH DAEMON or PORT 22 CLOSED #\n"; exit 6 }
"*assword: "
}
send "your_password\r"
expect {
timeout { send_user "\n# TIMED OUT. PROMPT NOT RECOGNISED! #\n"; exit 7 }
### expect the prompt symbol
-re {[#>$] }
## execute your script on the remote machine
send "$LOCATION\r"
expect {
"enter what you expect here" { send_user "\nRESULT: Message based on what you set the expect to read $IP\n" }
-re {[#>$] }
}
[... other expect code here ... ]
### exit remote ssh session
send "exit\r"
### end of expect part of script
EOD
### continue bash script here
[... other bash code here ...]
I am new to scripting. How can I write an Expect script to ssh into a device and prompt the user for password? We use a pin + RSA token code as the password so I can't store the password.
#!/usr/bin/expect -f
spawn ssh device1
You will need to use the interact command to type in the password yourself.
The below skeleton should get you on your way:
set prompt "$"
spawn ssh user#host
set timeout 10
expect {
timeout {
puts "Unable to connect"
exit 1
}
#Authenticty Check
"*(yes/no)?" {
send "yes\r"
exp_continue
}
"assword: " {
#Hand control back to user
interact -o "\r" exp_continue
}
"$prompt" {
puts "Cool by the pool"
}
}
I have used this code before to achieve what you wish to achieve. You can take it as a reference point to write your own version of the code.
#!/usr/bin/env expect -f
set passw [lindex $argv 0]
#timeout is a predefined variable in expect which by default is set to 10 sec
set timeout 60
spawn ssh $user#machine
while {1} {
expect {
eof {break}
"The authenticity of host" {send "yes\r"}
"password:" {send "$password\r"}
"*\]" {send "exit\r"}
}
}
wait
#spawn_id is another default variable in expect.
#It is good practice to close spawn_id handle created by spawn command
close $spawn_id
Source: Expect Wiki
The below code will ask the user to enter the password and will use it further in the script where a password will be asked. Just as $pass.
Grabbing password to be used in script further
stty -echo
send_user -- "Enter the password: "
expect_user -re "(.*)\n"
send_user "\n"
stty echo
set pass $expect_out(1,string)
Here is my script
#!/bin/ksh
RemoteFile=`grep "${File}" ${TempLog}` --> the value of the variable is Site Information_2013-07-04-00-01-26.CSV
/usr/bin/expect << EOF
spawn sftp user#server
expect "password:"
send "123fakepassword\n"
expect "sftp>"
send "cd /home/user/pickup_dir\n"
expect "sftp>"
send "lcd /home/user/Scripts/mart/wmt/RAMDISK0\n"
expect "sftp>"
send "get $RemoteFile\n" ---> I'm trying to pass it here so I can download the file.
expect "sftp>"
send "exit\r"
EOF
But no luck!, How can I pass a filename with double quote so the it will execute as (get "Site Information_2013-07-04-00-01-26.CSV\n") I'm placing it in variable cause the filename change on date. Or A'm I doing it wrong? I know not good to hard code the password but we can't use ssh-key to have a passwordless sftp. Thanks!
You just need to send some quotes. Pick one of
send "get '$RemoteFile'\n"
send "get \"$RemoteFile\"\n"
#!/bin/bash
while true
do
/usr/bin/expect <<EOF
set timeout 300
spawn sftp $remoteUser#$remoteIp
expect "yes/no" {
send "yes\r"
expect "*?assword" { send "$remotePass\r" }
} "*?assword" { send "$remotePass\r" }
expect "sftp> " { send "cd $RemoteFolderPath\r" }
expect "sftp> " { send "mget $remoteFileName\r" }
expect "sftp> " { send "quit\r" }
interact
EOF
done
exit