Context: I recently started using the nano text editor on a new machine (Red Hat based).
There's no GUI. I'm doing everything through the terminal. I'm using tmux to run multiple commands at once.
Steps to reproduce:
Open up an existing file in nano
Open up that same file in nano in a separate instance (without terminating the first instance) e.g. in another tmux pane
Expected output:
Nano gives a warning in step 2 along the lines of
this file is currently being edited by nano with PID x. Do you wish to continue?
This is what I have experienced on every other machine I've used nano on
Observed output:
Nano executes step 2 without warning. Only when I try to save the file does it alert me that someone else has the file open.
Issue:
This is an issue because sometimes I:
open file x in instance A
modify but don't save
do something else
forget that I haven't saved my modifications to file x, and forget that it's still open
open file x in instance B
make more modifications in instance B
try to save
be warned that 2 instances are opened
realise that I've made changes to 2 different unsaved instances of the one file
Related
I have downloaded the program jq-win64.exe from 'https://stedolan.github.io/jq/' and installed the program in a folder C:\Program Files\jq\ on my computer.
I have also added the PATH to the program to the end of the systemvariable string in Windows 10 : . . . ;C:\Program Files\curl\;C:\Program Files\jq\
In one terminal window in Visual Studio Code I am running a server.
In another terminal window I am trying to execute the command curl -s localhost:3000 | jq
Terminal window 1:
C:\Users\SteinarV\PROFF_JAVASCRIPT\PROJECT\smartHouse
node server.js
API running on port 3000
Terminal window 2:
C:\Users\SteinarV\PROFF_JAVASCRIPT\PROJECT\smartHouse>curl -s localhost:3000 | jq
'jq' is not recognized as an internal or external command,
operable program or batch file
... and do not understand why jq is not recognized.
Can someone help ?
I have downloaded the program jq-win64.exe from 'https://stedolan.github.io/jq/' and installed the program in a folder C:\Program Files\jq\ on my computer.
As you have indicated, you have a file called jq-win64.exe but you are trying to execute the command jq. You either need to rename the file to jq.exe or you need to use the command jq-win64.
For a detailed explanation of how Windows finds and executes a program in your path when you enter a command, see The Windows NT Command Shell: Command Search Sequence. Specifically:
...The shell now searches each directory specified by the PATH environment variable, in the order listed, for an executable file matching the command name. If a match is found, the external command (the executable file) executes...
...If the command name does not include a file extension, the shell adds the extensions listed in the PATHEXT environment variable, one by one, and searches the directory for that file name. Note that the shell tries all possible file extensions in a specific directory before moving on to search the next directory (if there is one)...
You indicate in the comments the same error persists even when the filenames match. Note that each running program has its own set of environment variables, and these aren't updated by global changes. You need to close and reopen cmd.exe windows after making a global change. See also Adding directory to path environment variable in windows. You can use the path command to verify whether a particular terminal session has inherited the PATH variable you defined, thus narrowing your problem.
You indicate that the problem still persists. You need to use the tools available to you to narrow it down further:
Try running the program with its full path:
"C:\Program Files\jq\jq-win64.exe" --help
This will confirm that the program is present where you think it is and can be run from the terminal.
Try running the program with no path and its extension:
jq-win64.exe --help
If this works but running the program without an extension doesn't, you might have set PATHEXT to something that doesn't include ".EXE".
Try setting the path explicitly in the terminal to contain only the program directory and nothing else, then run it with its full extension:
set PATH=C:\Program Files\jq
jq-win64.exe --help
(Note that after this test you'll need to close the terminal window and start a new one to reset the path.)
If this works, perhaps you have a mismatch in your path.
Please guys help out, am using google compute engine for the first time and using bitnami. I have successfully spin up a server, and connected with ssh but am stock here https://docs.bitnami.com/virtual-machine/components/nodejs/#how-to-create-a-custom-nodejs-application
Can anyone help me explain how:
1.- Create and edit the /opt/bitnami/apps/myapp/conf/httpd-prefix.conf file and add the line below to it:
Include "/opt/bitnami/apps/myapp/conf/httpd-app.conf"
2.- Create and edit the /opt/bitnami/apps/myapp/conf/httpd-app.conf file and add the content below to it. This is the main configuration file for your application, so modify it further depending on your application's requirements.
ProxyPass / http://127.0.0.1:3000/
ProxyPassReverse / http://127.0.0.1:3000/
NOTE: 3000 is the default port for the Express server. If you have
customized your application to use a different port, change it here as
well.
3.- Once you have created the files and directories above, add the following line to the end of the main Apache configuration file at /opt/bitnami/apache2/conf/bitnami/bitnami-apps-prefix.conf, as shown below:
Include "/opt/bitnami/apps/myapp/conf/httpd-prefix.conf"
According to the Bitnami guide shared by you, you should follow the following steps (I added more detailed information):
1.- Create directories
For that, you should run the following commands:
sudo mkdir -p /opt/bitnami/apps/myapp
sudo mkdir /opt/bitnami/apps/myapp/conf
sudo mkdir /opt/bitnami/apps/myapp/htdocs
2.- Create two files
For that, you can run the following commands:
touch /opt/bitnami/apps/myapp/conf/httpd-prefix.conf
touch /opt/bitnami/apps/myapp/conf/httpd-app.conf
3.- Add content to the first file
You can edit the file using any text editor, for example nano
nano /opt/bitnami/apps/myapp/conf/httpd-prefix.conf
The above command opens the text editor, you should copy/paste or write the following line:
Include "/opt/bitnami/apps/myapp/conf/httpd-app.conf"
Close the editor using Ctrl+X(you will be prompted to save your file if you have not)
4.- Add content to the second file
You can edit the file using any text editor, for example nano
nano /opt/bitnami/apps/myapp/conf/httpd-app.conf
The above command opens the text editor, you should copy/paste or write the following line:
ProxyPass / http://127.0.0.1:3000/
ProxyPassReverse / http://127.0.0.1:3000/
Close the editor using Ctrl+X(you will be prompted to save your file if you have not)
5.- Edit Apache config file
Once you have created the files and directories above, add the following line to the end of the main Apache configuration file. Open the file (again using nano):
nano /opt/bitnami/apache2/conf/bitnami/bitnami-apps-prefix.conf
The above command opens the text editor, you should copy/paste or write the following line:
Include "/opt/bitnami/apps/myapp/conf/httpd-prefix.conf"
Close the editor using Ctrl+X(you will be prompted to save your file if you have not)
6.- Restart apache
For that execute
sudo /opt/bitnami/ctlscript.sh restart apache
7.- Start the Express server
cd /opt/bitnami/apps/myapp/htdocs
./bin/www
Alternatively, use the following command to start the server and keep it running even after your server session ends. Replace FILE with the correct filename for your application.
forever start FILE.js
Title. I need to upload an htaccess file to my 1and1 webserver but as it's a dot file I can't save it.
What happens here is that you actually CAN save the file, but you just cannot see it.
By default, OSX hides some kind of file.
To make these files visible you have 2 options:
1: Show just once
Go to the folder where you want to see the hidden files.
Press Cmd + Shift + . (dot) in this folder.
Run the same operation to turn it off, or simply close the tab.
2: Show until you turn it off
Open the terminal
Run this command: $ defaults write com.apple.Finder AppleShowAllFiles true followed by $ killall Finder
To turn it off simply replace the true by false in the previous command.
Here you go, from now you should see all the hidden files you want.
If I print my $PATH in a terminal (zsh) I get:
λ echo $PATH
/Users/jviotti/.nvm/v0.11.13/bin:/Users/jviotti/bin/Sencha/Cmd/4.0.2.67:/usr/sbin:/usr/local/bin:/usr/local/sbin:/sbin:/opt/bin:/Users/jviotti/bin:/home/jviotti/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin:/usr/local/git/bin
However if I print the environment variables from Sublime Text 2 console I only get:
>>> print(os.environ['PATH'])
/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Users/jviotti/bin
Sublime Text 2 detects that I'm using Zsh, however most of my paths are missing.
How can I fix this?
When you launch Sublime via the command line with the subl command, it picks up your current PATH from your shell. However, files launched from the GUI have a separate PATH, and this is what needs to be changed. Please check out my answer over at Unix.SE for detailed instructions on how to set the PATH for OS X programs launched via the Dock or Finder. This has only been tested on Mountain Lion (there is a different method for Lion), and while it should work on Mavericks I can't guarantee it. It does require having admin privileges.
Briefly, you need to edit /etc/launchd.conf (or create it if it doesn't exist) to include all the entries you want, then restart your computer for the changes to take effect. Keep in mind that this will affect all GUI programs, not just Sublime, so if you start getting unexplained behavior or errors, this may be the reason.
Good luck!
I've had this problem for ages, and it's SO ANNOYING.
Suppose I want to run mysqldump.exe... here's my process: Start->run, type "cmd" ... dir into directory after directory until I finally get to c:/program files/mysql/bin/then I can FINALLY call "mysqldump.exe"
I don't mind using Windows Explorer to get to c:/program files/mysql/bin, but then I can't freaking open up any of the .exe files in a shell, and I can't open up shell with the directory being that one.
How can I do this?
This is what I do for those type of commands:
Drag a copy of the "Command Prompt" shortcut onto your desktop.
Open the properties of the shortcut.
Change the Target: field to: %SystemRoot%\system32\cmd.exe /k mysqldump.exe
Change the Start in: field to: c:/program files/mysql/bin/
Hit Ok, then rename the short cut from "Command Prompt" to "Mysqldump".
Then just double click the icon whenever you need that command. The "/k" option for cmd.exe leaves the window open.
Microsoft released a powertoy for Windows XP called Open Command Prompt Here. If you're using Vista, all you need to do is hold shift and right-click.
here's my process: Start->run, type
"cmd" ... dir into directory after
directory until I finally get to
c:/program files/mysql/bin/ then I can
FINALLY call "mysqldump.exe"
Why not just the following?
c:
cd "c:/program files/mysql/bin"
mysqldump.exe
Better yet, put this in a batch file and execute it.
You can also create a shortcut for cmd.exe and set the "Start in" directory to "c:/program files/mysql/bin".
You can download an add-in so that you can right click on the folder and open a command prompt. Saves a lot of time and you say you dont mind navigating to the location.
http://download.microsoft.com/download/whistler/Install/2/WXP/EN-US/CmdHerePowertoySetup.exe
A nice little trick is that the icon in the adress bar of explorer could be dragged to a command line window and it insert the full path at your current cursor position.
It doesn't work in vista but if you SHIFT-RightClick on a folder you have an "Open Command Windows Here" option that appears.
Under xp you could have it by saving this as a .reg and executing it :
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Folder\shell\cmd]
#="Open Command Prompt Here"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Folder\shell\cmd\command]
#="cmd.exe /k pushd %L"
Just use the explorer to navigate to the bin or any directory. then enter cmd at the address bar und hit return. the command line with start at this location.
You can do it with python:
If you don't have activepython already, download from ActiveState's Website. Next, run PythonWin and create a new script. Write the following:
from subprocess import *
Call("c://program files//mysql//bin//mysqldump.exe")
Save the script somewhere. When you want to run it, just doubleclick. There are easier ways if you like writing batch files, but Python is more succinct than even windows for this case.
Just put c:/program files/mysql/bin/ into your path...
Then you can run mysqldump.exe directly without even opening a cmd prompt by typing it into " Start > Run "
I was using the MS PowerToy for a while but moved on to the open source Open Command Prompt Shell Extension because of the key feature:
(copied verbatim from the website)
The ability to open a command prompt in the directory that you are currently in by right-clicking on any empty screen space in the directory. This eliminates the need to navigate up a level in order to open a command prompt in the current directory.
Having to actually click on a folder to open the command prompt using the MS tool was a annoyance for me... especially since I always need to run command line tools on my current directory at the time.