TASK TO BE ACCOMPLISHED:
To schedule a perl script which is executed on a specific time / day in a week
THINGS I HAVE DONE:
In a schedule Tasks, I have created a new Task by which the Task will call a batch file with below contents
cd "DRIVE\FOLDER\Hummingbird\Connectivity\14.00\Exceed\"
ABCD.xs
cd mDrive/bin
perl baseline.pl -publish -location XXX -email
THINGS NOT WORKING FOR ME / CAUSING THE ISSUE:
Wen I run the scheduler, the prompt opens up the ABCD.xs exceed file window seperately file but the below commands are executed in the command pronpt itself
EXPECTED OUTPUT:
I want the commands
cd mDrive/bin
perl baseline.pl -publish -location XXX -email
to be executed in the exceed window
Any kind of solution wud be great
Thanks in advance.
Haresh
Sounds like you need to start getting into either SendKey stuff (Win32 packages) or else look into writing Exceed/Hummingbird scripts and just executing those.
Some other things to look into... does the remote server have a telnet or ssh server running? Or are there other methods of executing code on the remote server?
For example, my work's mainframe is accessed via a Hummingbird terminal emulator, but I can also telnet to the mainframe and execute commands as well as FTP batch job directly into the JES spool. So when I execute things on the mainframe by way of my PC (Perl scripts, etc.), I don't even fool with Hummingbird.
Good luck...
Related
We have an application server running as a service, when some configuration is loaded it starts a bat script which has to run the powershell command Stop-ClusterGroup DRMSERVICES and then start it again.
The bat file works flawless when I manually execute it by dobbelt clicking. But when the service is running the bat, it does not finish, or execute the powershell command.
Bat file looks as follows
#echo off
powershell -command Stop-ClusterGroup DRMSERVICES
powershell -command Start-ClusterGroup DRMSERVICES
The service runs the bat file in silent mode, as a main difference.
I have tried with various switches including the -ExecutionPolicy Unrestricted and START /wait etc
Creating a seperate ps1 file and have the bat execute this instead.
All with the same output:
Manually executing the bat works
When the service executes the bat, it does not work.
I know the bat file is executed by the service, as inserting NET STOP servicename is working correct.
In the powershell event viewer I can also see event of the powershell commands take place.
The difference between manually executing and have the service execute the command in the event viewer, is event id 800 which states info about 'execution pipe' this is not present when the service is executing the bat.
The service does not wait for the powershell, and thus it does not have time to stop the cluster before exiting.
I'm lost whether this is a permission issue, syntax error or whatever.
Hopefully somebody can help
UPDATE:
I have tried with all proposed solutions, all with same result, the bat file works when double clicked, but the service does not execute the powershell command. Pure cmd is executed, as I can pipe to a txt file. I even got to a point when trying runas that the output log text wrote "insert administrator password"
I even managed to have our software guy change our software to call a powershell directly instead of a bat, same result. Powershell won't execute the command, this tells me it probably is permission, but everything have been set to log in as admin and run as admin for the sake of success, but still nothing.
I solved the problem.
Because the service is a 32bit process, it will execute a 32bit powershell.
FailoverClusters module only exists as a 64bit module.
By using %SystemRoot%\sysnative\WindowsPowershell\v1.0\powershell.exe
The service is able to open a 64bit session, and thus use the failover cluster module.
As a side note, the sysnative folder is only visible from a 32bit session, therefore it cannot be found via browsing in a 64bit os.
I think i have dealt with this kind of issue before, after the,
powershell -command Stop-ClusterGroup DRMSERVICES
you need to have cmd wait for a certain number of seconds, and then test if the DRMSERVICES is now stopped, if it is stopped then to start the DRMSERVICES again. This way cmd will keep waiting, and then check if the service has stopped.
After a certain number of tries, maybe have a way to stop checking and exit the script, for example it is trying to stop the service, and has run into a problem.
There is a timeout command in cmd
I have a perlscript file was running fine in crontab but suddenly it stopped running without any modification.
cd /home/user/public_html/crons && ./script.pl 2>&1 >/dev/null
The top of the script file is #!/usr/bin/perl -X
The output expect from this script is changes in database
I have another script file with the same modification and still works fine
When I run the file in the browser it works fine and execute all lines without any problem
I tried full path /usr/bin/perl but it didn't work
I tried Perl at the beginning but it didn't work
I run the command from SSH using putty but nothing happened
I checked log file /var/log/cron but no errors at all
I created temporary log file cd /home/user/public_html/crons/script.pl> /tmp/temp.log 2>&1 to see the errors but the log is empty
Here is the solution:-
I found the issue, There is was a stuck process for the same cron file , so i killed this process and its fixed
You can find your file process like this
ps aux | grep 'your cron file here'
This is a really common antipattern people seem to tend toward with cron.
Cron sends you an email with the output of your script, if it generates any output. People often redirect output to /dev/null to prevent cron from sending the email. This is bad because now the output of your script is lost entirely. Even if the script has some built-in logging, it might generate errors before it gets the log file opened and those are lost. It also might crash in a way that doesn't get written to the logging mechanism.
At a bare minimum, you should just remove 2>&1 >/dev/null to start receiving the email. (and also, test your mail setup using a temporary cron job like 1 * * * * echo "Test" )
The next better solution is to change it to >> /var/log/myscript/current.log and then also set up something to rotate the log files (like logrotate) and also make sure to create that directory with permissions that the script user is allowed to write to it. By only redirecting STDOUT of the script, any errors or warnings it writes to STDERR cause you to get an email, and if there are no errors/warnings the output goes to the log file and no email gets sent.
Neither of those changes solve the root problem though, which is that when cron runs your script it does so with a different environment than you have on the command line. What you really want is a way to run the script with a consistent environment, and log it. The "ultimate solution" is to define your task in some kind of service manager, and then use cron to occasionally start it. For instance, you could use systemd and define a service that doesn't restart, then use systemctl start my_custom.service in your cron job. Now you can test independent of cron, and your tests will have the same exact environment, and be logged by the service manager. As extra bonuses, you are protected from accidentally running your script twice at once, and you get a clean way to stop a running cron job without the danger of stale pid files.
I don't particularly advocate systemd myself, but thankfully there are lots of alternatives:
Runit : http://smarden.org/runit/runsvdir.8.html
S6 : https://skarnet.org/software/s6/
Perp : http://b0llix.net/perp/site.cgi?page=perpd.8
(but installing and configuring a service manager is a bigger task than just using systemd if your distro is based on systemd) Each of these allows you to define a service that doesn't restart. Then you use a shell command to issue a "run once" directive to the supervisor, which runs the task as a child. Now you can easily launch the jobs yourself and see all the errors in the log, and then add that command to the crontab and know that it will run identically when cron starts it.
Back to your original problem, once you get some logging you are likely to discover it is a permission problem or a upgraded module in the system perl.
I have a powershell file that I have downloaded from ScriptCenter that allows me to control and query virtual desktops on my machine (https://gallery.technet.microsoft.com/scriptcenter/Powershell-commands-to-d0e79cc5).
Using their example, I can run that ps1 file at the start of my script to use those commands that the script creates. All fine here.
The only issue with this is that when I run my script, it asks to confirm to run it. This is something I don't want my script to do.
To work around this, I tried using the "PowerShell" command with "-ExecutionPolicy Bypass" set. This removes the prompt to approve the script, however it stops the script from being loaded into my scripts session as I can't use any of the commands it make available by running it.
How do I either run the script first, without it prompting, or execute the powershell command so that it is run in the session space of my script so that its commands are available?
Thanks
The UPS software I am using has functionality to run a script on the management PC (PC1) when it goes into battery mode. I have come up with a powershell script (ShutdownVM.ps1) that works fine on its own to Invoke-Commands on the VM server; shutting down VM's gracefully and turning off the host machine (SERVER). The first problem arose when the UPS software could not directly run a .ps1 file.
Simple enough, I thought I would make a simple .bat (shutdown.bat) file to run the .ps1 file on PC1 to shut everything off on SERVER. Running my .bat file from the desktop pc worked perfectly, but as the UPS software would run it as a service, my poor .bat file would run from Session 0.
Here is the code i used in Shutdown.bat:
#echo on
Powershell.exe -executionpolicy unrestricted -command C:\Windows\ShutdownVM.ps1
The interactive services manager would pop up and my computer would hang and finally the UPS software would turn it off and I'd be back to square one, with SERVER and its VM's still running. So I thought I would download and use PSExec to execute my shutdown.bat file.
I made another .bat file and called it PSExec.bat and below is the code in it:
#echo on
psexec.exe -accepteula \\PC1 -h -u user -p pass -i 2 C:\Windows\shutdown.bat
Finally! It tries to run! Upon checking the interactive services manager, it showed the PSExec was throwing the error "the system cannot find the file specified"
"The System Cannot Find The File Specified"
I have no idea what file it is even looking for, I have double, triple checked the path names in my scripts and still have no idea as to what it is doing. If anyone could shed any light (or let me know of an easier way to achieve what I am trying to do) that would be great. Thanks!
-F
I am new to using cygwin and don't really understand how the scripting of it works. Currently I am running it on Windows 7 and using task scheduler to do this inefficiently.
What I want to do is to run a .bat file already made that runs tests in the cmd line and than take the results of that test and email that people.
Some side notes:
1. It doesn't HAVE to be a batch file, from my reading I think maybe a .sh would be easier to run with bash. Being able to run it on CentOS would be even better, that way others can run if I leave.
2. This needs to run daily. I would like to run the batch file at around 10 am and give it an hour till the emailed results are sent, unless you can trigger the email when the .bat is done.
3. Every time I run this .bat file it saves the results to a .htm file and overwrites it every time the .bat is run.
Thank you
That could be in the crontab for a a centOS server (/etc/crontab)
0 10 * * * user cd /path/ && /bin/bash file.sh >> result_file
Is that what you needed ? Also, you can install Cron as a windows service with cygrunsrv