How to run python programs from command promt on windows? - command-line

Ok so I got python to run in command prompt I just can't figure out the syntax to call scripts from it. So my file is in c:\python\script so I've been calling like this;
"C:\Python\Script"
but it doesn't anything and returns
""File<stdin>", line 1"

If you have the Python executable in your path, you'd call your script like:
python C:\Python\Script.py

Good day,
python script.py arg1 arg2 argN
If the python interpeter isn't in the PATH variable you can set it with:
Setting a system environment variable from a Windows batch file?

Related

#!/bin/bash equivalent in windows / specify interpreter for executable script IN the script

I don't really know which part of the described technology stack the behaviour i'm describing is actually a property of - linux, or bash/sh? but it does not really matter i guess.
Anyway, on linux, in a bash or sh shell, i can run a script marked as executable in the file system without specifying the interpreter on the shell or somewhere global, but right in first line of the file,
e.g.
#!/bin/bash
#!/usr/bin/python
or even
#!/usr/bin/gcl -f
for a common lisp implementation.
Is there a general windows, powershell or cmd.exe equivalent to this?Specifically, specifying the interpreter/command line to run the script with in the script itself, rather than on the command line or in the windows registry.
If not, what are similar options? The most similar thing I know about are shortcuts. Is there something more similar?
In Windows the file extension specifies, which programs is used to Interpret a script.
You can also specify the Interpreter like "cmd": CMD /c "c:\temp\script.cmd" or with Powershell: powershell.exe script.ps1
What you can do (in Powershell) is, to specify the Version, which is used to run the script. Use #Requires -version 3.0 in first line and it will throw error on v4 cmdlets etc.

Lua: command lines parameters are nil on windows 8.1

I run the Lua script using command line:
scipt.lua arg
But when I want to print the value arg1 in script:
print(arg[1])
Result is nil.
When I try to run it like:
lua script.lua arg
It returns not recognized command for windows.
What I am doing wrong? How can I get parameters from command line?
I don't see any problem with your example. Since you are able to run this command, but do not get any arguments passed, it's possible that whatever script registered the association, didn't use the syntax for passing arguments. You can find the registered association and check the command to make sure it includes %* to pass all the parameters to the script.
You can find where the executable is by using where lua.exe command and then call that executable directly from the command line to see if it works.

perl command prompt with arguments

Is it possible to start a command prompt from perl script using Win32::Process::Create package?
I am trying to start DOORS from perl script. The executable is present in C:\Program Files\DOORS\bin\runDOORS9.rck.
I need to start the runDOORS9.rck with the argument COL9 to change the Database.
Try the good old system() function. On Windows it would use the cmd.exe, the system shell, to execute the command.
Since what you try to launch doesn't seem to be an .exe file, potentially you would have to use the start command of the cmd.exe.
For example:
system(qq{start "" "C:\Program Files\DOORS\bin\runDOORS9.rck" COL9});
(The first "" is required due to quirky argument parsing of the Window's shell commands. See help start for more information.)

Running Executable from Shell Script

I am having trouble launching an executable that I have created from a shell script. I would like to automate testing by running the program many times with different command line options to verify it is working.
When I type echo $SHELL, /bin/sh is displayed.
The following is my shell script:
#!/bin/sh
clear
echo "Running first test."
./myProgram
exit 0
When I run the script (sh myScript.sh), with myProgram in the same directory, I see the following output:
Running first test.
: not foundsh: line 4:
When executing the program ./myProgram, it runs as expected with no command line options.
I have also tried:
myProgram
./myProgram &
myProgram &
based on answers to somewhat similar questions, but they all result in the above error message.
Your newlines are goofed. Use dos2unix to fix.
why don't you try using the full path?
e.g., if myProgram is in /home/user1/bin, you can try /home/user1/bin/myProgram instead of ./myProgram. This should work.
You can also add the path to path variable, $PATH and directly call myProgram from anywhere.
Run "export PATH=$PATH:/home/user1/bin" on your terminal without the quotes. Note that this affects only your current termial session. If you want to permanently add the path, update your .bashrc file in your home directory with the following line:

Disable powershell expansion of command's extension?

We have a lot of existing batch files that help with the running of different perl and ruby scripts.
A batch file (e.g. test.bat) would normally be invoked like:
$ test
and within the batch file, it will set some settings and finally try to run the corresponding script file (e.g. test.pl) like this:
perl -S "%0.pl" %*
All works with cmd.exe, but today, I decided to switch to PowerShell and found out that it expands the commands. So trying to run "test" will actually run "Full\path\test.bat" and my script would complain that there is no file test.bat.pl.
Is there a way to prevent this command expansion? Rewriting all batch files is not an option.
One way is to call cmd explicitly:
cmd /c test