I'm trying to install Scalatra on windows seven and need to change a file to executable...the Scalatra documentation says to do this, which is unix. What is the windows equivalant?
chmod u+x srt
You can simply open the relevant folder with a unix command prompt (I use git bash) and execute the unix commands from there
To get scalatra-sbt going on Windows, either port you own sbt.bat from scalatra-sbt, or install chmod via cygwin.
Assuming you've successfully installed the rest of Conscript and giter8, you can start a project that downloads scalatra-sbt. From there, one can look through the ./sbt source, and port the bash script functionality to your own windows specific script, or install a unix compatibility layer into Windows. If you go down the "windows specific script" route, perhaps the scalatra-sbt would appreciate the project contribution.
The "unix compatibility layer" route will eventually allow you to run ./sbt. chmod is a unix command line function, and is provided in a default package of the tool set cygwin, which provides a complete lunix-like environment. Once inside a cygwin terminal, you can chmod your file, as mentioned in the scalatra-sbt first project.
Diving into the contents of ./sbt from scalatra-sbt, this is actually unix script wrapper around the scala build tool (also referred to, confusingly, as sbt). If while trying to run ./sbt you get strange '\r' errors, install the cygwin package dos2unix, and then run it on the sbt file. If you run into any "which: no curl in..." or "which: no wget in..." errors, go back to the cygwin installer, find those packages such as wget, and then install those programs.
By the way, the last thing the scalatra-sbt script runs is the Scala build tool. The Scala build tool sbt itself has many reported issues with cygwin's default configuration, so you will likely need to do more research. Depending on what issues you're running into on your specific setup, you may need to make changes to the end of the ./sbt script to adjust the parameters used to launch the Scala build tool.
Related
Usually, on Windows, I use PowerShell (default shell) to call a Bazel command such as bazel build. As far as I understand Bazel makes use of MSYS2 to call and execute commands such as curl, zip or git for instance. Therefore, I wonder if I should use the MSYS2 bash terminal instead of PowerShell. Can there be any problems when using Powershell instead of the MSYS2 bash terminal? Or doesn’t it matter?
As its mentioned here by developers of bazel, using MSYS or MSYS2 is the best choice. Personally I prefer MSYS* over cmd or PowerShell for any thing.
In the current master there was recently an update of the documentation exactly about this issue:
As of 2020-01-15, we do not recommend running Bazel from bash – either
from MSYS2 shell, or Git Bash, or Cygwin, or any other Bash variant.
While Bazel may work for most use cases, some things are broken, like
interrupting the build with Ctrl+C from MSYS2). Also, if you choose to
run under MSYS2, you need to disable MSYS2’s automatic path
conversion, otherwise MSYS will convert command line arguments that
look like Unix paths (e.g. //foo:bar) into Windows paths. See this
StackOverflow answer for details.
I have tried to install ionic on Windows but installation has failed. What should I do?
I have tried more than 20 times but still I got the same problem.
Here I have attached the screenshot for this
Entered commands:
npm install -g cordova
npm install -g ionic
Note: this one windows server machine
My guess is that the NPM global path has not been added to your windows path.
These are the steps to try:
First verify that the command just installed can run. The output contains the full path to the command installed, just copy and paste it to the command line. In your case it might be something like this %APPDATA%\Roaming\npm\iconic -v
Lets assume that works. That means that the command was successfully installed and will run, now we need to add it to your PATH so you can run it from the command line.
Next, Press Windows key and type "path" and select "Edit environment variables for your account". From here. Add or append the path %APPDATA%\Roaming\npm to your PATH variable, and save the results.
Once it is on your PATH you can run it from any command shell window.
Next, start a new command shell (e.g., Windows+R, cmd, Enter) and then type the command iconic -v. Viola, it should work without requiring the full path to the script.
I'm doing most of this from memory so hopefully it's correct. But if it needs some tweeks, let me know and I'll update the answer.
For completness, this install didn't actually fail. The lines with fsevents are warnings. The fsevents package is only designed to work on Mac Unix so these warnings can be safely ignored.
As Suraj Rao mentioned, also see Nodejs cannot find installed module on Windows?.
I see some tutorials online but they only show how to install git onto Cygwin AS you are installing Cygwin. I already have cygwin installed and customized so I'd prefer not to repeat that step. How do I install the git framework so I can use it for github?
Thank you.
In the world of Cygwin, there is really no such thing as only installing a package AS you are installing Cygwin. Cygwin was inherently designed with a setup.exe to be run multiple times when necessary.
There are thousands of packages available in the Cygwin repo mirrors. From what you are saying, it sounds as if you had a single go-round with the setup file and then planned to never install any additional available packages or upgrade them in the future. This is what the Cygwin setup file is specifically used for.
If you don't currently have Git installed in your particular Cygwin environment, just run setup.exe again and select the package. It should automatically detect your current installation directory and package directory and previously-selected mirror. When you mark the Git package for installation, it will automatically download all dependencies, just like apt-get or any other *NIX package manager.
There is also an abandoned project called apt-cyg that I still use religiously, especially on remote systems over SSH in order to avoid the GUI setup.exe. apt-cyg is basically a shell script that will install your package directly from the command line, apt-get-style. It requires wget and subversion, but after the 30 seconds it takes to setup, you'd just run apt-cyg install git. It also installs dependencies, just like the GUI setup.exe.
There is also a similar alternative if you install Cygwin via Chocolatey package manager -- you can also install cyg-get (I believe it's called). The syntax is a bit different -- something like cyg-get git. I don't really like this method, because it differs from apt-cyg in the fact that it actually uses the setup.exe and just automates the process so that you don't have to click anything. I don't use this method, because the last I checked, Chocolatey only supported 32-bit Cygwin installs, which is also what the cyg-get package looks for.
apt-cyg may be abandoned, but it has yet to disappoint, and if I know what I'm looking for, I always prefer it over running the setup.exe for package installation.
It looks like the project has been picked back up and is under active development again: https://github.com/transcode-open/apt-cyg
It appears this version requires lynx to install. I don't know. I still just use the original version on Google Code that worked just fine the last I checked: https://code.google.com/p/apt-cyg/
Edit: There has been a new Cygwin package manager out for awhile called cyg-get that can be installed via Chocolatey.
I'm not sure if it only works for Chocolatey-installed Cygwin installations or not, as Chocolatey doesn't install Cygwin in the normal locations anymore by default. Feel free to comment, but cyg-get is now my Cygwin package manager of choice unless I'm running an older installation of Cygwin that was not installed by Chocolatey. I avoided it for a while because they only supported 32-bit installations, but I can confirm that Chocolatey now supports 64-bit installations of Cygwin, and the cyg-get package manager works perfectly with it. I have a function sourced from my ~/.bashrc where I can use either apt or apt-get (with or without the install parameter, and it will just call cyg-get.bat with the programs I have specified to install.
http://redmine.jamoma.org/projects/1/wiki/Installing_and_setting_up_GIT
By following the steps mentioned in the link for windows you can install git using cygwin
is there a posibility to make eclipse PyDev use a remote Python interpreter?
I would like to do this, as the Linux Server I want to connect to has several optimization solvers (CPLEX, GUROBI etc.) running, that my script uses.
Currently I use eclipse locally to write the scripts, then copy all the files to the remote machine, log in using ssh and execute the scripts there with "python script.py".
Instead I hope to click the "run" button and just have everything executed within my eclipse IDE.
Thanks
Unfortunately no. You can remotely connect to your Linux server via Remote System Explorer (RSE). But can't use it as a remote interpreter. I use Pycharm. You can use the free Community Edition or the Professional Edition for which you have to pay for it. It is not that expensive and it has been working great for me.
As Adel says, this is probably not possible with the Remote System Explorer, or the normal Run button,
but you can automate the process you currently use. I had to do this for a few weeks when the fan was broken
in my laptop, and doing any significant computation there made it overheat and poweroff, so I just ran
everything on my work machine.
You can use the External Tools mechanism to run a short script that syncs your code to the remote server,
runs your script, then syncs back any output files to your local machine. My script looks like this,
is stored in $HOME/bin/runremote.sh, and is executable (chmod +x runremote.sh)
fp="$1" # Local path to the script we want to run--for now,
# this is the only command I pass in from Eclipse, but you could add others if so inclined.
# My home directory is a little different on my local machine than on the remote,
# but otherwise things are in the same place. Adjust as needed.
fp=`python -c "print '$fp'.replace('/home/tsbertalan', '/home/oakridge/bertalan')"`
# Run the synchronization. I use Unison, but you could use something else,
# like two calls to rsync, or a series of scp commands.
reposync >/dev/null # The redirection assumes your sync command will print errors properly on stderr.
cd='cd '`dirname $fp`
# I use a virtual environment on the remote server, since I don't have root access to install
# packages globally. But this could be any set-up command you want to run on the remote.
# A good alternative would be `source $HOME/.profile` or `~/.bashrc`.
act='source /home/oakridge/bertalan/bin/activate'
fname="`basename $fp`"
cmd="$act ; $cd ; python $fname"
# Run the command remotely. The -X forwards X11 windows, so you can see your Matplotlib plots.
# One difficulty with this method is that you might not see all your output just as it is created.
ssh bertalan#remote.server.edu -X "$cmd"
sleep 1
# My synchronization script is bidirectional, but you could just use rsync with the arguments flipped.
reposync >/dev/null
If you don't use linux or OSX locally, you'll probably have to use MinGW or Cygwin or whatever to get
this working. Or, since you appear to have a working Python interpreter, you could write an
equivalent script in Python, make it executable (by the file properties dialog in Explorer, I think),
and add a #!/path/to/python line at the top. I don't use Windows regularly, so I can't really help with that.
To use this in Eclipse, go to Run > External Tools > External Tools Configurations.... Add a new tools
whose Location is the path to your script, and whose first Argument is ${resource_loc}.
You can then use it with Run > External Tools > [first item], or bind it to a keyboard shortcut (I used F12)
by going to Windows > Preferences > Keys, and searching for "Run Last Launched External Tool". Presumably you'll
have to go through the menus first to make this the "Last Launched" external tool.
I am new to Linux. I am trying to develop ROS application using eclipse. I don't understand the below which is provided in ROS website. Can you explain this in more simple way, So that I can configure my eclipse after downloading from eclipse.org.
Reusing your shell's environment
For building and running ROS programs from inside IDEs, the ROS
enviroment has to be set up. All IDEs might have a config for that,
but running your IDE from your ROS-sourced shell should be the easiest
way, avoiding inconsistency.
Likewise, you can enhance your IDE's launcher icon to load your shells
environment. E.g., replace its command eclipse with
bash -i -c "eclipse". This will make bash source
~/.bashrc, in which ROS has to
be sourced and parameterized, and start that IDE.
use following commands:
cd <your_catkin_workspace>
catkin_make --force-cmake -G"Eclipse CDT4 - Unix Makefiles"
cd build
cmake ../src -DCMAKE_BUILD_TYPE=Debug
now you can import your project to eclipse
after that you can create a desktop application entry for eclispe:
sudo vim /usr/share/applications/eclipse.desktop
[Desktop Entry]
Type=Application
Terminal=false
Icon=<path_to_your_eclipse_dir>/icon.xpm
Exec=bash -i -c "source /opt/ros/hydro/setup.bash && source $HOME/workspace/<your_catkin_workspace>/devel/setup.bash && <path_to_your_eclipse_dir>/eclipse"
Comment=IDE
Name=eclipse
Comment=IDE
It seems that a wiki was published about this subject here
Put simply, the lines you listed are suggesting you run your IDE (eclipse) from a terminal which has already been sourced. So for instance, if you have a package called mypackage, you might type in a terminal:
cd ~/mypackage
source devel/setup.bash
eclipse
The first line is just however you get to your package, the second line sets up environmental variables for you (like changing your PATH), then you can run eclipse with all of those already setup so you don't have to configure your package in eclipse 100% manually.