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Environment variables in Mac OS X
...nt variables used by launchd (and child processes, i.e. anything you start from Spotlight) using launchctl setenv.
For example, if you want to mirror your current path in launchd after setting it up in .bashrc or wherever:
PATH=whatever:you:want
launchctl setenv PATH $PATH
Environment variables ...
How do I remove the file suffix and path portion from a path string in Bash?
...
And can be used to remove anything from the end, basically it does just a string removal from end.
– Smar
Aug 25 '11 at 15:43
2
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In java how to get substring from a string till a character c?
...ing firstWord = filename.replaceAll("\\..*","")
This replaces everything from the first dot to the end with "" (ie it clears it, leaving you with what you want)
Here's a test:
System.out.println("abc.def.hij".replaceAll("\\..*", "");
Output:
abc
...
how to mysqldump remote db from local machine
...
How about being in a VPN? Or doing a dump from a machine you SSHed into that has access to the database machine? The port does not need to be public.
– Ondrej Burkert
Sep 5 '18 at 20:07
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cartesian product in pandas
... you can produce a cartesian product using merge (like you would in SQL).
from pandas import DataFrame, merge
df1 = DataFrame({'key':[1,1], 'col1':[1,2],'col2':[3,4]})
df2 = DataFrame({'key':[1,1], 'col3':[5,6]})
merge(df1, df2,on='key')[['col1', 'col2', 'col3']]
Output:
col1 col2 col3
0 ...
How can I build a small operating system on an old desktop computer? [closed]
...erything else your OS kernel needs to do to get it up to a bootable state. From that point on it's basically a matter of writing device drivers for the hardware you need to support, and offering implementations of the C library functions to make kernel calls for things like opening files and devices...
Get name of current script in Python
...e__ is the same: it will be linkfile.py. If you want to find 'realfile.py' from 'linkfile.py', try os.path.realpath('linkfile.py').
– Chris Morgan
May 13 '13 at 3:49
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Difference between private, public, and protected inheritance
...d inheritance. Let's consider a class Base and a class Child that inherits from Base.
If the inheritance is public, everything that is aware of Base and Child is also aware that Child inherits from Base.
If the inheritance is protected, only Child, and its children, are aware that they inherit fro...
How do I use disk caching in Picasso?
...tBerde: Thanks for the quick note but I figured out the image is coming up from memory only if the App is running in background (when on offline). if I close the app, that is clear the running apps then open my app again the images don't load from Cache. I have set the error default loading image th...
Jenkins Git Plugin: How to build specific tag?
..., fixed (i.e., non-parameterized) tag. I had to cobble together a solution from the various answers plus the "build a Git tag" blog post cited by Thilo.
Make sure you push your tag to the remote repository with git push --tags
In the "Git Repository" section of your job, under the "Source Code Man...