Executing fortran script with single line from Windows cmd - windows

I need to run a fortran (77) script from the Windows 10 command window, but it should be a one-liner. The reason is that the fortran scipt - a file called external_command.f - is actually part of a Matlab script, where I can run external code through the operating system's command window (by using the ! "bang" symbol or system()-command. I quickly want to point that out without focusing too much on Matlab). But I'm having trouble doing that in Windows.
So far I tried:
using a fortran compiler for Windows, like Msys2 (which has the functions of gfortran, as far as I understand). However, it looks like I have to start Msys2 first, which then opens a separate window, which Matlab doesn't seem to be able to use because it's not Windows cmd anymore
installing gfortran in Ubuntu using Windows 10's WSL (Windows Subsystem for Linux). Same problem here: the cmd window changes to a Ubuntu terminal before I can use any fortran scripts. Furthermore, I can't easily change files located in Windows with commands from within a virtual machine
If it's not possible to run fortran scripts in Windows 10 in a one cmd line, I'd appreciate some guidance on how to change my approach.
EDIT: after Ronald kindly explained in a comment how fortran works I think this whole (rather complicated) question is just based on my own misunderstanding of fortran. I'm pretty sure I can now solve the issue after compiling my fortran code and using the resulting exe file in my cmd-window.

Related

How can I use Python to interact with the Ubuntu terminal for windows 10?

I am running compiled c code on the Ubuntu subsystem for Windows. I would like to automate this process with a Python script that can open the terminal, send and read commands as well as closing the window.
I am trying this on Python 3.6 in Windows 10. I thought it was going to be the same as interfacing Python with the CMD but all the things I try are not yielding results. I want to know if anyone has tried to automate processes with the Ubuntu subsystem for Windows and how can that be achieved.
First, I had to find the .exe that launches the Ubuntu app, since it's downloaded from the microsoft store.
Using OS simply gives me the following result without opening the terminal.
import os
os.system(r"C:\Program Files\WindowsApps\CanonicalGroupLimited.UbuntuonWindows_1804.2019.521.0_x64__79rhkp1fndgsc\Ubuntu.exe")
1
Also using subprocess will open the terminal. But parting from there, how can I give it commands and read the outputs?
import subprocess
subprocess.Popen([r"C:\Program Files\WindowsApps\CanonicalGroupLimited.UbuntuonWindows_1804.2019.521.0_x64__79rhkp1fndgsc\Ubuntu.exe"])
I think there's a few things worth mentioning here.
Firstly, I don't think you need to use Python at all. If you want to schedule your compiled C code to run at a particular time (or linked to some other condition etc.), you can do all of this within WSL. I would suggest using cron which already comes with Ubuntu. It's a scheduling daemon that can execute tasks at specified intervals.
Secondly, if you want or need to use Python to achieve this (for whatever reason), I suggest you install a second version of Python within WSL. This will allow you to easily run whatever shell commands you want e.g. to execute your compiled C code. You don't need to worry about opening an Ubuntu window and then closing it etc. Personally I would actually go further and say that you should ditch your Windows 10 Python and just go with the WSL Python - it makes a lot of things much easier, especially if you're already familiar with Linux or are using WSL a lot for other tasks anyway.
Lastly, if you still really need to automate this from Windows 10, I suggest you use the Windows Task Scheduler to schedule a .bat file which opens bash (WSL) and executes a command as per the following link:
How to run program on ( ubuntu bash windows 10 ) from windows task scheduler
(or if you don't need to schedule it, you can instead just execute the command from Python)
Hope that helps!

How to enable bash commands in Windows CMD?

I've two Windows machines and both have bash installed. However, they differ in the way bash starts up:
Machine 1:
Typing "bash" starts the bash. Then I can type commands like ls.
Machine 2:
It seems like it starts bash and directly runs ls in it, by only typing "ls". After that it switches back to CMD automatically, like this:
Does anyone know which setting enables the behavior of machine 2? Everything looks the same for me. It's a nice feature and I want to enable it on machine 1 as well.
Bash on Ubuntu on Windows executables (binaries) cannot run from Windows applications such as cmd.exe or PowerShell.exe - Windows doesn't even see them as executable.
The likeliest explanation is that you've installed a separate Unix emulation environment such as GnuWin, which comes with native Windows binaries.
To see the location of your - by definition Windows-native - ls executable, run where ls, which will probably tell you what product it came with, such as
C:\Program Files (x86)\GnuWin32\bin\ls.EXE.
Note that the Ubuntu on Windows binaries are stored in a user-specific manner in
%LOCALAPPDATA%\lxss\rootfs\bin, but that is a moot point, given that you cannot invoke them from Windows.
In Windows 10, there is a built-in Linux subsystem (one of the greatest features of Windows 10). It gives you almost a complete Linux shell for various distributions, and you can almost do anything with it (user mode).
I bet it is installed on your first computer, and you are using that subsystem. In the latest version of this subsystem, you can run both Linux executables and Windows exe files.

How can I execute a bash file (.sh) on PostgreSQL? On windows [duplicate]

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I have bought and I use Windows 7 Ultimate, and I like to use it to develop applications. One of the down sides (as with every OS) is that I can not run Bash scripts. Is there a way to run Bash scripts on Windows by installing some software? It is ok if it does not work 100%, but as long as the most common functionality is available it should be great.
Install Cygwin, which includes Bash among many other GNU and Unix utilities (without whom its unlikely that bash will be very useful anyway).
Another option is MinGW's MSYS which includes bash and a smaller set of the more important utilities such as awk (you may also want to check the competing fork - Mingw-w64). Personally I would have preferred Cygwin because it includes such heavy lifting tools as Perl and Python which I find I cannot live without, while MSYS skimps on these and assumes you are going to install them yourself.
Updated:
If anyone is interested in this answer and is running MS-Windows 10, please note that MS-Windows 10 has a "Windows Subsystem For Linux" feature which - once enabled - allows you to install a user-mode image of Ubuntu and then run Bash on that. This provides 100% compatibility with Ubuntu for debugging and running Bash scripts, but this setup is completely standalone from Windows and you cannot use Bash scripts to interact with Windows features (such as processes and APIs) except for limited access to files through the DrvFS feature.
Best Option I could find is Git Windows Just install it and then right click on and click "Git Bash Here" this will open a bash window
This will open a bash window like this:
and the linux commands work...
I've tried 'sh' , 'vi' , 'ssh' , 'curl' ,etc... commands
If you're looking for something a little more native, you can use getGnuWin32 to install all of the Unix command line tools that have been ported. That plus winBash gives you most of a working Unix environment. Add console2 for a better terminal emulator and you almost can't tell you're on Windows!
Cygwin is a better toolkit overall, but I have found myself running into surprise problems because of the divide between it and Windows. None of these solutions are as good as a native Linux system though.
You may want to look into using virtualbox to create a linux VM with your distro of choice. Set it up to share a folder with the host os, and you can use a true linux development environment, and share with windows. Just watch out for those EOL markers, they get ya every time.
Best option? Windows 10. Native Bash support!
You can always install Cygwin to run a Unix shell under Windows. I used Cygwin extensively with Window XP.
After installing git-extentions (http://gitextensions.github.io/) you can run .sh file from the command prompt. (No ./script.sh required, just run it like a bat/cmd file)
Or you can run them in a "full" bash environment by using the MinGW Git bash shell.
I am not a great fan of Cygwin (yes I am sure it's really powerful), so running bash scripts on windows without having to install it perfect for me.
In order to run natively, you will likely need to use Cygwin (which I cannot live without when using Windows). So right off the bat, +1 for Cygwin. Anything else would be uncivilized.
HOWEVER, that being said, I have recently begun using a combination of utilities to easily PORT Bash scripts to Windows so that my anti-Linux coworkers can easily run complex tasks that are better handled by GNU utilities.
I can usually port a Bash script to Batch in a very short time by opening the original script in one pane and writing a Batch file in the other pane. The tools that I use are as follows:
UnxUtils (http://sourceforge.net/projects/unxutils/)
Bat2Exe (http://bat2exe.net/)
I prefer UnxUtils to GnuWin32 because of the fact that [someone please correct me if I'm wrong] GnuWin utils normally have to be installed, whereas UnxUtils are standalone binaries that just work out-of-the-box.
However, the CoreUtils do not include some familiar *NIX utilities such as cURL, which is also available for Windows (curl.haxx.se/download.html).
I create a folder for the projects, and always SET PATH=. in the .bat file so that no other commands other than the basic CMD shell commands are referenced (as well as the particular UnxUtils required in the project folder for the Batch script to function as expected).
Then I copy the needed CoreUtils .exe files into the project folder and reference them in the .bat file such as ".\curl.exe -s google.com", etc.
The Bat2Exe program is where the magic happens. Once your Batch file is complete and has been tested successfully, launch Bat2Exe.exe, and specify the path to the project folder. Bat2Exe will then create a Windows binary containing all of the files in that specific folder, and will use the first .bat that it comes across to use as the main executable. You can even include a .ico file to use as the icon for the final .exe file that is generated.
I have tried a few of these type of programs, and many of the generated binaries get flagged as malware, but the Bat2Exe version that I referenced works perfectly and the generated .exe files scan completely clean.
The resulting executable can be run interactively by double-clicking, or run from the command line with parameters, etc., just like a regular Batch file, except you will be able to utilize the functionality of many of the tools that you will normally use in Bash.
I realize this is getting quite long, but if I may digress a bit, I have also written a Batch script that I call PortaBashy that my coworkers can launch from a network share that contains a portable Cygwin installation. It then sets the %PATH% variable to the normal *NIX format (/usr/bin:/usr/sbin:/bin:/sbin), etc. and can either launch into the Bash shell itself or launch the more-powerful and pretty MinTTY terminal emulator.
There are always numerous ways to accomplish what you are trying to set out to do; it's just a matter of combining the right tools for the job, and many times it boils down to personal preference.
There's one more theoretical possibility to do it: professional versions of Windows have built-in POSIX support, so bash could have been compiled for Windows natively.
Pity, but I still haven't found a compiled one myself...

How to develop in Linux-Like Shell (bash) on Windows?

I'm Windows user. But according to my project requirements, I need to write Linux Shell Script(Bash shell). How to develop Linux Shell on Windows?
Is there any IDE for writing Linux Shell Scripting? Please share me some ideas and resource links.
You have quite a number of options:
cygwin
Install cygwin. It will give you a bash.
mingw
The minimal GNU for windows. Comes with set of commands, compilers. This came with my Git on Windows and now the default shell for small scripts
VM, such as VirtualBox
There are tons on VMs, VirtualBox being easy to use(it powers the Boot2Docker). You can do development and test on real Linux distros.
Ubuntu on Windows 10
There is new kid on the block. This allows you to run User Space Ubuntu using Windows Subsystem for Linux (WSL). see more on it at Microsoft blog
Other notes/IDE support
Shell scripts should be small, requires less IDE etc. I use VIM with syntax highligthing. But it seems ShellED may be useful in your case. I got the link from answer for this question - Bash script plugin for Eclipse?
IntelliJ has couple of plugins too for Bash..
I prefer Gow (Gnu on Windows) over Cygwin. Both will give you bash on Windows, but Cygwin has unnatural conventions for filesystem access (/cygdive/c/some/path instead of c:\some\path).
The native windows command terminal is pretty lame, take a look at Conemu.
I'm not aware of any bash IDE, but there are a plethora of windows text editors with decent syntax highlight for bash scripts. I like Notepad++ and Sublime text (the multiple cursor feature from Sublime rocks!). I don't recommend bash for anything with more than 30 lines, if you ever feel the need for an IDE, perhaps the task is more suited for Python, Ruby or Perl (IMHO Python is more maintainable).
The Bash shell is coming to Windows 10 in the upcoming Anniversary Update (Redstone).
The Bash shell is coming to Windows. Yes, the real Bash is coming to Windows, said Microsoft's Kevin Gallo at Build 2016 keynote. This is not a VM [Virtual Machine]. This is not cross-compiled tools. This is native."
Here's the steps to run Bash on Windows 10 OS:
Open the Windows Start menu
Type "bash" [hit enter]
Which opens a console running Ubuntu's /bin/bash with full access to all of Ubuntu user space
Yes, you are right, that means apt, set, ssh, rsync, find, ls, grep, awk, sed, sort, xargs, md5sum, gpg, curl, wget, apache, mysql, python, perl, ruby, ruby gem, php, gcc, tar, vim, emacs, diff, patch, nano...and most of the tens of thousands binary packages available in the Ubuntu archives!
Reference
Step-vise Guide to Enable Windows 10’s Ubuntu Bash Shell (Windows Subsystem for Linux)
The Bash shell is coming to Windows 10 in the upcoming Anniversary Update (Redstone).
Run native Bash on Ubuntu on Windows
Since you need to write linux shell scripts, you are learning Linux. So you should install Linux on your machine (preferably on its own partition and boot from it, otherwise in a VM).
Using cygwin or whatever imitation of Linux shell is not using Linux. You'll learn a lot more by installing and using Linux (and by developing on it with an editor like emacs or gedit or gvim ....). Also, take advantage that Linux is almost entirely free software, so you can study its source code and improve it.
Not installing Linux is not doing yourself a favor.
I believe cygwin is for those who love Linux but have to use Windows. It cannot give you the entire Linux feeling (e.g. you won't be able to write shell scripts looking into /proc which does not exist in Windows, even with cygwin).
If you want to use a simple environment emulating all Linux environment as alternative to cygwin (more lightweight) you can try mingw and you can use notepad++ or emacs or vim to provide some syntax highlight on sh scripts.
Everyone has said to go full Linux or use various mocks.
Cloud9.io is a good option if you don't need that much.
You can set up a "workspace" which can be accessed online, lets you write in literally any language similar to np++, but the best part is, it's an online Linux, so you have a terminal, with all your shell commands - no mock up, no dual boot.
The downside to this is that the free users aren't given that much power, so if you wanted to execute some high-level maths or output a large image, it will crash as you will be using too much memory. But it is still really worth getting into, it's only ever crashed once on me, and I do some pretty memory-intensive things.
There is cygwin , that's a linux console for windows.. so you can execute all the linux command with it.
Install Cygwin to execute the commands. However you can use NotePad++ as editor which has native windows binaries.
http://www.cygwin.com/
http://notepad-plus-plus.org/
For Eclipse Luna Should use this one old version fails on UI error
Help > Install New Software… > Add…
Name: ShellEd
Location: http://sourceforge.net/projects/shelled/files/shelled/update/
I had a similar problem.
I like both Linux and Windows, and I am working on both systems, but for programming (and generally, for text editing) I use Windows, for different reasons. For example, I write C/C++ code on Windows, using the Windows DevC++ IDE, then I can compile this project on Linux, by sharing the files on LAN. Now I have to write long scripts, and I would like to do it in a similar way. Ok, maybe its a special request, but maybe I am not the only one who works in such a mixed environment.
First, I tried notepad++ (it is suggested by others as well), but does it support syntax highlight for Linux scripts? I didn't found this feature...
Then I tried gedit compiled for Windows. It requires the GTK library installed (actually it was already on my Windows). Gedit has syntax highlight for scripts!
So I suggest using gedit for Windows for this case. The edited script can not directly be started/tested with it, but for editing, it is fine!

Is there a way to run Bash scripts on Windows? [closed]

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We don’t allow questions seeking recommendations for books, tools, software libraries, and more. You can edit the question so it can be answered with facts and citations.
Closed 6 years ago.
Improve this question
I have bought and I use Windows 7 Ultimate, and I like to use it to develop applications. One of the down sides (as with every OS) is that I can not run Bash scripts. Is there a way to run Bash scripts on Windows by installing some software? It is ok if it does not work 100%, but as long as the most common functionality is available it should be great.
Install Cygwin, which includes Bash among many other GNU and Unix utilities (without whom its unlikely that bash will be very useful anyway).
Another option is MinGW's MSYS which includes bash and a smaller set of the more important utilities such as awk (you may also want to check the competing fork - Mingw-w64). Personally I would have preferred Cygwin because it includes such heavy lifting tools as Perl and Python which I find I cannot live without, while MSYS skimps on these and assumes you are going to install them yourself.
Updated:
If anyone is interested in this answer and is running MS-Windows 10, please note that MS-Windows 10 has a "Windows Subsystem For Linux" feature which - once enabled - allows you to install a user-mode image of Ubuntu and then run Bash on that. This provides 100% compatibility with Ubuntu for debugging and running Bash scripts, but this setup is completely standalone from Windows and you cannot use Bash scripts to interact with Windows features (such as processes and APIs) except for limited access to files through the DrvFS feature.
Best Option I could find is Git Windows Just install it and then right click on and click "Git Bash Here" this will open a bash window
This will open a bash window like this:
and the linux commands work...
I've tried 'sh' , 'vi' , 'ssh' , 'curl' ,etc... commands
If you're looking for something a little more native, you can use getGnuWin32 to install all of the Unix command line tools that have been ported. That plus winBash gives you most of a working Unix environment. Add console2 for a better terminal emulator and you almost can't tell you're on Windows!
Cygwin is a better toolkit overall, but I have found myself running into surprise problems because of the divide between it and Windows. None of these solutions are as good as a native Linux system though.
You may want to look into using virtualbox to create a linux VM with your distro of choice. Set it up to share a folder with the host os, and you can use a true linux development environment, and share with windows. Just watch out for those EOL markers, they get ya every time.
Best option? Windows 10. Native Bash support!
You can always install Cygwin to run a Unix shell under Windows. I used Cygwin extensively with Window XP.
After installing git-extentions (http://gitextensions.github.io/) you can run .sh file from the command prompt. (No ./script.sh required, just run it like a bat/cmd file)
Or you can run them in a "full" bash environment by using the MinGW Git bash shell.
I am not a great fan of Cygwin (yes I am sure it's really powerful), so running bash scripts on windows without having to install it perfect for me.
In order to run natively, you will likely need to use Cygwin (which I cannot live without when using Windows). So right off the bat, +1 for Cygwin. Anything else would be uncivilized.
HOWEVER, that being said, I have recently begun using a combination of utilities to easily PORT Bash scripts to Windows so that my anti-Linux coworkers can easily run complex tasks that are better handled by GNU utilities.
I can usually port a Bash script to Batch in a very short time by opening the original script in one pane and writing a Batch file in the other pane. The tools that I use are as follows:
UnxUtils (http://sourceforge.net/projects/unxutils/)
Bat2Exe (http://bat2exe.net/)
I prefer UnxUtils to GnuWin32 because of the fact that [someone please correct me if I'm wrong] GnuWin utils normally have to be installed, whereas UnxUtils are standalone binaries that just work out-of-the-box.
However, the CoreUtils do not include some familiar *NIX utilities such as cURL, which is also available for Windows (curl.haxx.se/download.html).
I create a folder for the projects, and always SET PATH=. in the .bat file so that no other commands other than the basic CMD shell commands are referenced (as well as the particular UnxUtils required in the project folder for the Batch script to function as expected).
Then I copy the needed CoreUtils .exe files into the project folder and reference them in the .bat file such as ".\curl.exe -s google.com", etc.
The Bat2Exe program is where the magic happens. Once your Batch file is complete and has been tested successfully, launch Bat2Exe.exe, and specify the path to the project folder. Bat2Exe will then create a Windows binary containing all of the files in that specific folder, and will use the first .bat that it comes across to use as the main executable. You can even include a .ico file to use as the icon for the final .exe file that is generated.
I have tried a few of these type of programs, and many of the generated binaries get flagged as malware, but the Bat2Exe version that I referenced works perfectly and the generated .exe files scan completely clean.
The resulting executable can be run interactively by double-clicking, or run from the command line with parameters, etc., just like a regular Batch file, except you will be able to utilize the functionality of many of the tools that you will normally use in Bash.
I realize this is getting quite long, but if I may digress a bit, I have also written a Batch script that I call PortaBashy that my coworkers can launch from a network share that contains a portable Cygwin installation. It then sets the %PATH% variable to the normal *NIX format (/usr/bin:/usr/sbin:/bin:/sbin), etc. and can either launch into the Bash shell itself or launch the more-powerful and pretty MinTTY terminal emulator.
There are always numerous ways to accomplish what you are trying to set out to do; it's just a matter of combining the right tools for the job, and many times it boils down to personal preference.
There's one more theoretical possibility to do it: professional versions of Windows have built-in POSIX support, so bash could have been compiled for Windows natively.
Pity, but I still haven't found a compiled one myself...

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