There are a couple ways to send multiple commands without expect tags. But again, the basic thing here is to remember that expect acts as if you were typing commands. So, if you want to send commands one after the other without expecting anything, you should be able to do it just like you do it on the command line using a semicolon to separate the commands:
Code:
send "df -h; ls;cd /tmp\r"
If you want to set a temporary variable in the remote host, following what you have posted:
Code:
send "data=\$\(df /var/crash | grep -v Filesystem | tr -s ' ' ' ' | cut -d ' ' -f4 \)\r"
#note: the backlashes before the $ and ( are needed so theyread as a metacharacter and
#not a literal $ and ( . You'll probably have to experiment with some other metacharacters
expect ".com"
Now you have a variable in the remote system which you can compare to something or just echo it.
A quick comment about setting passwordless logins, you can actually set that up with expect as well. Remember, the script doesn't run in 1000 servers, it runs in one place where it logs into 1000 servers
another quick edit, you don't need all those sleep commands.
One more thing... if /var/crash in not a separate file system, the df command will return the size of /var , not /var/crash
Last edited by System Shock; 07-08-2009 at 05:09 PM..
Hello to all...this is my first post (so please go easy). :)
I feel pretty solid at expect scripting, but I'm running into an issue that I'm not able to wrap my head around. I wrote a script that is a little advanced for logging into a remote Linux machine and changing text in a file using sed.... (2 Replies)
This Expect script provides expect with a list of IP addresses to Cisco IPS sensors and commands to configure Cisco IPS sensors. The user, password, IP addresses, prompt regex, etc. have been anonymized. In general this script will log into the sensors and send commands successfully but there are... (1 Reply)
Hi All,
I am using a expect script to run a shell script on remote server, the code is as follows. But the problem is that it executes only first command, and hangs it doesn't run the next commands.
spawn ssh $uid@$host
expect "password:"
send "$password\r"
expect "*\r"
send... (2 Replies)
Hey all. Sometimes I'm tasked to change some router configs for the entire network (over 3,000 Cisco routers). Most of the time its a global config parameter so its done with a loop and an IP list as its the same configuration change for all routers. This is working OK.
However, sometimes an... (3 Replies)
Hi,
I am new to the expect scripting.
I have this expect script as below :
spawn ssh remote_server -l id
set pass "12345"
set opt "s"
expect "Password:" {send "$pass\r" ; }
expect "*ENTER*" {send "Enter\r"; exp_continue }
expect "Please select option :" {send... (2 Replies)
Hi,
Am very new to expect scripting..
Can You please suggest me how to call an expect script inside another expect script..
I tried with
spawn /usr/bin/ksh
send "expect main.exp\r"
expect $root_prompt
and
spawn /usr/bin/ksh
send "main.exp\r"
expect $root_prompt
Both... (1 Reply)
Not able to execute the file in remote host using except utility
I am automating the SFTP keys setp process:
So i created the expect script for controlling the output of shell
below is my main code:
Code:
#!/usr/bin/expect
set fd
set password
close $fd
set df
set app
close $df... (1 Reply)
I have an expect script called remote that I want to call from inside my expect script called sudoers.push, here is the code that is causing me issues:
set REMOTE "/root/scripts/remote"
...
log_user 1
send_user "Executing remote script as $user...\n"
send_user "Command to execute is: $REMOTE... (1 Reply)
Dear All,
I have a requirement where I have to SFTP or SCP a file in a batch script. Unfortunately, the destination server setup is such that it doesn't allow for shell command line login. So, I am not able to set up SSH keys. My source server is having issues with Expect. So, unable to use... (5 Replies)
I'm fairly new to scripting so this might not be possible.
I am using Expect with Cisco switches and need to capture the string after finding the expect request. For example, when I issue "show version" on a Nexus switch, I'm looking to capture the current firmware version:
#show version
... (0 Replies)
Discussion started by: IBGaryA
0 Replies
LEARN ABOUT NETBSD
crash
CRASH(8) BSD System Manager's Manual CRASH(8)NAME
crash -- examine and debug system images
SYNOPSIS
crash [-M core] [-N kernel]
DESCRIPTION
The crash command is used to examine and debug system images.
If run without any arguments, crash operates on the running system.
The options are as follows:
-M core Operate on the specified crash dump instead of the default /dev/mem. Crash dumps should be from the same version of the system
and same machine architecture as the running version of crash, and must be uncompressed.
-N kernel Extract the name list from the specified kernel instead of the default /dev/ksyms.
The command syntax used by crash is the same as the in-kernel debugger. See the ddb(4) manual page for more information.
Operations and facilities that require a running system, such as breakpoints, are not supported by crash.
crash does not provide pagination. However, by using the pipe symbol, output may be sent to commands available from the shell. For example:
crash> ps | more
crash> ps | grep ioflush
SEE ALSO ps(1), vmstat(1), ddb(4), pstat(8)HISTORY
The crash command appeared in NetBSD 6.0.
BSD March 7, 2009 BSD
07-08-2009
