I am writing a "Compile and / or Run" plugin for Graviton (https://graviton.ml), a code editor providing a terminal with xtermjs.
Is there any way to check if the current terminal is IDLE?
By IDLE I mean at the bash / cmd prompt waiting for input.
Related
New to programming and SQL.
When I run a script within a SQL Plus command box window, the command window closes.
How can I stop the script from closing the window automatically please?
First, I am logging into the DB host, then I run the script and I cannot tell what the output is, if it has errored, etc?
For example:
Within Windows, run sqlplus
login using 'schema/schemapassword#hostname
run script using #c:\thisisanexampleofthescript.sql
At this point, the sql plus window closes
Thanks
Brian
To keep the window with sqlplus open first run cmd and then inside run sqlplus. Because sqlplus just close the window when it finish.
I am trying to open appium, avd, and ride to run a test in Jeninks. I have the following in execute windows batch command:
C:
cd C:\Users\Gebruiker
appium
adb start-server
cd C:\Users\Gebruiker\AppData\Local\Android\Sdk\emulator
emulator -avd Pixel_3_API_23
ride.py
D:
cd D:\RIDE - testproject\Avans-One
robot -d Open_settings_connect_wifi AvansOne
It keeps loading after opening Appium, the first step. I have tried seperating the steps but it still doesnt work. It completes the first step and then just keeps loading. How do i fix this?
Most probably, this is happening because the command used to start the app is not returning while the app is running. So you will have to use a command that allows you to run the application in the background.
Check with something like below.
START /B title program
e.g.:
C:
cd C:\Users\Gebruiker
START /B "" appium
You can read more about the background process here
whenever I switch directory in my terminal, I have to run the command "/bin/bash --login" before I can run rails/rake related commands. If I don't, I get an error saying "the program "rails" can be found in the following packages: ..."
Any advice?
By default some servers do not allow this due to permissions reason. You can place this in
~/.bashrc and it will automatically work when you open a new terminal
As per bash man page.
When an interactive shell that is not a login shell is started, bash
reads and executes commands from ~/.bashrc, if that file exists. This
may be inhibited by using the --norc option. The --rcfile file option
will force bash to read and execute commands from file instead of
~/.bashrc.
When bash is started non-interactively, to run a shell script, for
example, it looks for the variable BASH_ENV in the environment,
expands its value if it appears there, and uses the expanded value as
the name of a file to read and execute. Bash behaves as if the
following command were executed:
if [ -n "$BASH_ENV" ]; then . "$BASH_ENV"; fi but the value of the
PATH variable is not used to search for the file name.
The file is just shell commands. It is typically used to change prompts, set environment variables, and define shell procedures. Traditionally, the file .profile is used for this purpose, but bash has so many extensions that it needs its own startup file for users that want to put bashisms in startup files.
Easy solution:
Just open terminal. GO to Edit menu from terminal navigation bar, Select "Profile Preferences", It will open "edit profile pop-up". Select "Title and Command" button and "check Run Command as login shell"
ctrl + alt + t -> Edit -> Profile Preferences -> Title and Command -> Check Run command as login shell
Close the terminal and open again. Next time you don't need to "/bin/bash --login"
Not sure why when I execute a Python tools like pip or nosetests inside powershell, a separate popup command line windows will show, execute my command, then disappeared. This is annoying because I can hardly see the executable output, especially the last few lines before the popup close.
I assume there are some setting I can change to stop the popup?
I am using Powershell 2.0 in Windows 7.
Powershell is not cmd.exe, and it has a different console interface. More than likely, your py tools are writing to a non-existent shell window. You may be able to get around this by using the following syntax:
cmd /c script.py
What you do when you execute the python scripts directly from the PS prompt is fire-off a DOS shell for the period of time it takes for the command to complete. Since there's no 'pause' implemented, the shell window closes when the command completes.
A test script
# tester.py, just a test
print "This is a test script, that is all."
Output in PS:
C:\src\python
{powem} [36] --> .\tester.py
C:\src\python
{powem} [37] --> cmd /c .\tester.py
This is a test script, that is all.
mp
For someone has similar problem, please have a look at this answer, I think this solution eventually solved my problem. and in my case, I have to restart my computer to get it all working.
I'm trying to modify a legacy Delphi 5 app so that it can be launched either from it's icon/via Explorer, or from the console (command-line). When it gets launched from the console, I want the program to detach itself from the console process, so that the console can continue to execute other instructions without waiting for my program to terminate.
I want to use it in a 'batch' file, such that I might have;
#echo off
rem step 1 - do some stuff here
rem
rem step 2 - launch my app
c:\myfolder\myapp
rem
rem step 3 - do some more stuff here
and that the console process moves on to step 3 straight after launching my app in step 2.
I'm sure I've done this before, many years ago, but I'm puzzled as to what exactly I did. I don't want to write a tiny console app 'launcher' for my main Windows app - I'm 95% sure that there was a way of doing this within a 'normal' Delphi GUI app.
I guess I could use vbscript or powershell or something to 'execute' my program with some kind of 'nowait' parameter but the client is familiar with batch files and I don't really want to upset the applecart by suggesting he change his scripts or install additional stuff - I'm making changes to the executable anyway and it would be great to tick this box for him too.
Anyone? :-)
I think the START command is the one you're looking for. It starts a process separately to the console and it's part of cmd.exe so no extra software required.
But I was of the opinion that GUI apps did this anyway. Maybe Delphi is different to MSVC.
Open up a console and type "start /?".
As itowlson states in the comments, GUI application do generally detach themselves. It's the actual cmd.exe shell doing trickery in that it waits for it to finish if it's running from a cmd file.
So "notepad" from the prompt will start it in the background but "notepad" within a cmd file will wait. Within the cmd file, you need to use:
start notepad.exe
or whatever your application is called (not notepad, presumably).
try: start "" c:\myfolder\myapp (with the empty quotes)
I think Microsoft has been solve this problem in Windows Power Shell.
In command prompt, even if you use "start ", you cant detach your process really from cmd. If you close the cmd, you will die, suddenly. But In windows Power Shell, you can detach your program or command from Power Shell as default.
So, if you prefer to use Windows Power Shell instead of Command Prompt, just do this:
PS: X:\> <your command>
Here's one way that I've found. It works quite cleanly and doesn't leave any extra cmd windows around (the recommendation to use start c:\myfolder\myapp does not work:
cmd /c dir && c:\myfolder\myapp
To quote the CMD help:
/C Carries out the command specified by string and then terminates
Note that multiple commands separated by the command separator '&&'
are accepted for string if surrounded by quotes.
Apparently it notices that the dir command terminates and exits, even though your app was launched on the same command. Chalk it up to one of Windows vagaries.
u should use the cd command example
cd/
cd myfolder
start myapp
exit