When attempting runCommand("cd", "..") from inside a js.jar console an IOException is thrown.
I believe it's because in the command prompt the CD command is actually built into the console and not a separate .exe file. The runCommand("notepad") works fine, and that .exe can be found on the classpath in the usual location.
Is there a work around for this?
I was thinking that changing the directory through java instead of through the command prompt it might solve this problem, but I don't recall how to do that from java, but I plan on trying to figure that out.
To sum up: Is there a way to run "cd" from within a Rhino JS console on windows?
Thanks,
L-
Multiple issues to solve here; it depends what you are trying to do.
runCommand actually runs executable programs. cd is not an executable on Windows; it is a command in the command shell. So you would need to execute something more like this:
runCommand("cmd","/c","cd <target-directory>")
However, the underlying Java runtime does not allow you to actually change the working directory anyway. See this StackOverflow discussion. So shelling out cd just changes the directory for the subprocess (the process running cd), which is probably not what you want.
Related
I am following this tutorial where i have to run this command in order to start the zookeeper server.
./bin/zookeeper-server-start.sh config/zookeeper.properties
But the problem is this command is not working properly. I found that .sh file is bash file that required cygwin. I have installed it and then run command like this
C:\cygwin64\bin\bash.exe ./bin/zookeeper-server-start.sh config/zookeeper.properties
But it is showing:
I can confirm that in bin directory the file is exsits. what i am doing wrong?
Here is my directory snapshot from where i running the command:
Note: I have successfully tested bin/windows zookeeper bat file but i want to run it through .sh file as the kafka security tutorial which i am following using this.
From your screenshot, I conclude that you are using Cygwin. So, please add the cygwin tag to your question.
As you can see from the error message, the command dirname is not found by bash, so assuming that your Cygwin installation is not broken, I assume that the PATH is not set correctly; in your setup, dirname.exe should be in C:/cygwin64/bin (please verify this).
Your usage of bash.exe is a bit unusual in that you run it directly from a Windows cmd prompt. The more common way would be to use it from the 'Cygwin Terminal', which you get created a Windows-link to, when installing Cygwin, or to use another suitable Terminal program; I'm using for instance mintty for this task (also available via the Cygwin installer).
Having said this, it is possible to run bash.exe in the way you are doing it, but you then have to ensure, that at least the PATH is set up correctly. One possibility to do this, is to add C:\cygwin64\bin to your Windows PATH, but this has the drawback, that some commands have the same name in the Windows world and in Cygwin, though they serve a completely different purpose, and this will bite you sooner or later. Another problem is that at some point, you will rely on other bash specific setups besides the PATH.
A better way to accomplish your goal is IMO to ensure, that the system wide bash-initialization files are sourced by bash. If I have to run the script from a Windows cmd prompt, I would run it by
C:\cygwin64\bin\bash.exe --login YOURSCRIPT
This will read the file (in your setup) C:\cygwin64\etc\profile before running YOURSCRIPT, so you can check, that the PATH is correctly set there, by looking at this file. In a default installation, this should be the case.
After having read this file, it will try to read the file .bash_profile in your Cygwin HOME directory, so if you need additional settings for your (non-interactive) bash-scripts, create this file and put your settings there.
I was using Pycharm as my editor to run the scripts since i need to add a task scheduler i had to test the code on the command prompt. Firstly this is the structure of my project.
When i try to run the following line
C:\Users\My_name\AppData\Local\Programs\Python\Python36-32\python.exe "C:\Users\My_name\PycharmProjects\FYP_CB006302\generateSummary.py"
I get this error,
From the knowledge i have i think it is because it doesn't recognize the path.
But when i change the directory to my project folder then give the path to python.exe and type generateSummary.py it works which was done as shown here.
However i highly doubt that this method can be used to task a schedule in Windows. Therefore, any ideas that would to run as shown in the beginning will be helpful.
The problem here is that when you use that line to run a particular script the folder which is causing the error is out of scope.
C:\Users\My_name\AppData\Local\Programs\Python\Python36-32\python.exe "C:\Users\My_name\PycharmProjects\FYP_CB006302\generateSummary.py"
In this case pickle_saves folder is out of scope. You can avoid this by giving a absolute path to that file in line 173. Where the absolute path is something like C:\user\documents\projects\pickle_saves\all_words
I am looking for a way to run an executable or a script without getting cmd.exe to do it for me. Currently I'm launching a process using cmd.exe /C <command>, which I need to do the following things for me:
Look for the executable file in the current directory and PATH
Interpret PATHEXT to permit extension-less script commands
Interpret file associations to, e.g., run the python interpreter when I tell it to run blah.py.
I don't need to be able to run any of the "built-in" commands, like "dir".
Is it possible to avoid using cmd.exe without essentially re-implementing all of the above functionality? There must be some sort of shell API to do the above things, right?
ShellExecute should do exactly what you want - you can use it to launch an executable or a file (which is then opened with the standard application),
http://msdn.microsoft.com/en-us/library/bb762153%28v=vs.85%29.aspx
Take a look at System.Diagnostics.Process.Start( appName, args) .
http://msdn.microsoft.com/en-us/library/system.diagnostics.process.start.aspx and about the shell, have you looked it: http://msdn.microsoft.com/en-us/library/bb773177(v=vs.85).aspx ?
This is a noob question at its best but Google isn't finding what I need.
I have a ruby script that I need to fire off via task scheduler. I thought I did it right by using the following:
cmd /k ruby test.rb
This works when starting the .bat file from the folder. However, if it runs from taskeng.exe it fails because its looking in my system32 folder. I don't want it to run from system32 so how do i format this to run from say, c:/dev/
Again, sorry for the extremely noob question.
You can leave out cmd of that and just use
ruby test.rb
or rather (in your case):
ruby C:\Users\Foo\test.rb
or something like that. Giving the complete path to the script usually helps in finding it ;-)
In any case, if you need the working directory you can set it in the scheduled task itself. Something akin to the following:
Likewise, if you actually need cmd in there. Just fill out the Start in field and you have a working directory.
Folks, I'm using git tools such as git bisect run which need to call a command to build and test my project. My command to do is nant which is a windows program. Or a build.cmd script which calls nant.
It's easy to get the bash to call the nant build to run.
But the hard part is how to get the standard output written to a file?
I even installed the Windows PowerShell to try running a command from bash.
Again, it works but the standard output fill says "permission denied" when
I try to read it while the build is going on.
Update:
When running nant, the entire path is used. It is installed and runs fine. The problem is how to get the standard output when running from bash.
If running nant from the windows prompt with "> build.out" at the end of the line, you will get the standard out. But the same never works under bash. It just says build.out is locked, permissions denied.
Update:
Using tee as suggested below also doesn't solve the problem. In that case the file still report "access is denied" with any attempts to read it while the build runs. But also, the tee program never writes anything to standard output.
(If I am understanding your question correctly...)
You can probably use the 'tee' command to split the output to both a file and stdout. The line echo I am building something | tee build.out will both print the output on the console and save it to the file named "build.out".
The tee command is usually available in Cygwin, and also apparently in the Bash shell installed by msysgit (where I just tested it). Here's a good reference page for more details.
Okay, finally resolved this. It turns out the the nant build script was using git feature to erase all ignored files to cleanup. That was deleting the build.out file can causing these strange issues. Now, the process writes the build.out file to a parent directory so that it won't get deleted and now everything works smoothly as expected.