I installed fzf (https://github.com/junegunn/fzf#fish-shell) using brew on Mac. The other day I removed it using brew.
Now I get the following message whenever I open a fish shell:
fish:
fzf_key_bindings
^
in function '__original_fish_user_key_bindings'
called on line 46 of file ~/.local/share/omf/init.fish
in function 'fish_user_key_bindings'
in function '__fish_reload_key_bindings'
called on line 228 of file /usr/local/Cellar/fish/3.1.2/share/fish/functions/__fish_config_interactive.fish
in function '__fish_config_interactive'
called on line 170 of file /usr/local/Cellar/fish/3.1.2/share/fish/config.fish
in function '__fish_on_interactive'
in event handler: handler for generic event 'fish_prompt'
How do I cleanly remove the fzf integration from here?
fzf installs itself in fish shell by appending to fish_user_key_bindings.
You can remove its integration by editing ~/.config/fish/functions/fish_user_key_bindings.fish and deleting the call to fzf_key_bindings.
If you have installed fzf by running its install script, you can also run its uninstall script of course.
Related
I'm attempting to execute a script from the shell (Mac OS) using Octave, and this is exactly what I type:
$ open -a octave "my_script.m"
The result, is that Octave (the full application in the GUI) opens and doesn't run the script.
Ideally, I'd like Octave to actually run in Terminal (without the GUI), and execute whatever commands and scripts I type there, including, as noted above, an entire script stored in a .m file.
I also tried the following:
$ octave-cli my_script.m
Which produces the following error:
-bash: octave-cli: command not found
I installed Octave through a DMG file linked to on the official GNU website.
The command you're looking for is called octave-cli, and there's no need to open, just octave-cli my_script.m.
I have been trying to pip install psycopg2 for some time now
I have just updated to python 3.7.4, before this problem started.
To set my path to a specific python version I used the code below.
nano .bash_profile
I thought that it would now be easy for my system to identify the path of the newly installed python, as to enable it to install psycopg2. Then the below started happening.
The second line of system terminal or python terminal is now always showing:
-bash: zzzzz#: command not found on my terminal
No matter what I type on my terminal, I am always getting command not found
This would mean you literally have "zzzzz" somewhere in the bash_profile. Bash is seeing "zzzzz" as just another command to run at startup like the rest of the profile script. As there is nothing in your PATH matching that string, bash reports the issue back to you.
Either remove the extra line from your .bash_profile. OR use a terribly wasteful work-around!
ln -s /bin/true /bin/zzzzz
This will create a symbolic link to the "true" binary (all it ever does is return true) from zzzzz. Now bash can find zzzzz and run it during start up, which does nothing. No more error and an absurd work around. You should fix the file.
I am trying to run the following in Jupyter notebook (with Python 2 if it makes a difference):
!head xyz.txt
and I get the following error:
'head' is not recognized as an internal or external command, operable
program or batch file.
Is there anything I need to import to be able to do this?
Might be useful for others.
Use ! followed by terminal command you want to execute. To run a shell command. E.g.,
! pip install some_package
to install the some_package.
An easier way to invoke terminal using jupyter-notebooks is to use magic function %%bash and use the jupyter cell as a terminal:
%%bash
head xyz.txt
pip install keras
git add model.h5.dvc data.dvc metrics.json
git commit -m "Second model, trained with 2000 images"
For Windows it would be %%cmd.
Write it at the beginning of the cell like this :
%%cmd
where python
myprogram "blabla" -x -y -z
You can start the cell with the magic % bash before the rest of your code. There is an example in this blog post, together with a list of some of the most useful magics.
Make sure you run your command in linux shell because there is non such command in windows.
Another option nowadays is the Jupyter kernel for Bash.
I had the same issue. Solved by running
!bash -c "head xyz.txt"
I am writing my script interactively with IPython. This is what I currently do:
write a chunk of code,
run in ipython with "run -i file_name.py".
make changes and repeat 2 until I think it is OK .
comment out the entire previous chunk.
write new chunk of code that is based on the previous one.
go back to step 2.
......
Is there more efficient way? Can I start a script from a specific line while using all the variables in current namespace?
Use ipdb ("pip install ipdb" on the command line to install it).
Suppose you want to run script "foo.py" from line 18 to 23.
You'll want to start like this:
ipdb foo.py
Now, let's jump to line 18 (i.e., ignore all the lines before the 18th):
ipdb> j 18
Next, we set a breakpoint at line 23 (we don't want to go further):
ipdb> b 23
Finally, let's execute:
ipdb> c
Job done :)
I'd personally also use the ipython notebook, but you call also use you favorite text editor and always copy out the chunk of code you want to run and use the magic command %paste to run that chunk in the ipython shell. It will take care of indentation for you.
Use the magic of %edit stuff.py (first use) and %ed -p (after the first use) and it will invoke your $EDITOR from inside of ipython. Upon exiting from the editor ipython will run the script (unless you called %ed -x). That is by far the fastest way I found to work in CLI-ipython. The notebooks are nice, but I like having a real editor for code.
(Based on lev's answer)
From the interactive shell:
%run -i -d foo.py
should then enter the debugger, and proceed with:
j <line_number>
c
etc.
EDIT: unfortunately, this seems to sort of break ipython's magic %debug command.
An IPython Notebook allows you to interactively run scripts line by line. It comes with IPython, just run:
ipython notebook
from the terminal to launch it. Its a web interface to IPython, where you can save the notebooks to *.py files by clicking save as in the settings.
Here's some more info from this video.
For something fast as well as flexible use http://qtconsole.readthedocs.io/en/stable/
It is similar to the Jupyter notebook based on your browsers (as pointed out by #agonti and #magellan88, but presumably much faster. It also has emacs style keybindings.
I use ipdb, ipython, comupled with tmux and vim and get almost IDE like features and much faster.
Am attempting to run installer using command line using -c option.
Command line execution appears like this:
E:\dev>MyApp_32.exe -c
E:\dev>This will install App on your computer.
OK [o, Enter], Cancel [c]
E:\dev> (showing the Windows command line is confusing to user)
Welcome .. (text of 2nd screen)
Typing "c" or "Cancel" doesn't work. It always takes enter key as input and proceeds to next screen.
Pressing enter transfers control back to windows's command shell, then back to installer. This looks confusing to user. It doesn't give a unified experience to user.
Is it possible to provide input via a silent file ? i.e. a text file with pre-selected inputs?
Am using 32 bit installer on Win 7 Professional x64 with Java 1.6 installed.
The problem is that the installer is a GUI application, it cannot take control of a WIndows terminal in this way. If you start it via
start /wait MyApp_32.exe -c
the command line prompts will not be displayed.
You can run set a response file with the -varfile argument, see the help for more information.