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Suppress warning messages using mysql from within Terminal, but password written in bash script
...ment". Since the printf is executed by Bash directly it doesn't show up in ps.
– Dave James Miller
Nov 13 '14 at 14:46
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Automatically add newline at end of curl response body
...mmand. The -w "\n" option to curl suggested in the most popular answer keeps the curl exit code available for inspection.
– bradoaks
Oct 4 '19 at 17:53
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move_uploaded_file gives “failed to open stream: Permission denied” error
...make them globally writable (bad practice).
Check apache process owner: $ps aux | grep httpd. The first column will be the owner typically it will be nobody
Change the owner of images and tmp_file_upload to be become nobody or whatever the owner you found in step 1.
$sudo chown nobody /var/www/ht...
Different bash prompt for different vi editing mode?
... like this:
More details, including how to install, are available at https://github.com/calid/bash
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How to enter in a Docker container already running with a new TTY
...sion. I'm sure docker exec -it will eventually provide a fully-functional pseudo tty, but for now (Docker version 1.9.1), there are some shortcomings : github.com/docker/docker/issues/8755
– blong
Jan 5 '16 at 3:11
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How do you count the lines of code in a Visual Studio solution?
...ng more formal should be required.
From a smallish solution's directory:
PS C:\Path> (gci -include *.cs,*.xaml -recurse | select-string .).Count
8396
PS C:\Path>
That will count the non-blank lines in all the solution's .cs and .xaml files. For a larger project, I just used a different ex...
PowerShell: Setting an environment variable for a single command only
... Keith, we have a push-environmentblock and pop-environmentblock in Pscx for exactly this scenario ;-)
– x0n
Sep 14 '09 at 16:25
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pandas three-way joining multiple dataframes on columns
... I'd put them in a list like this (generated via list comprehensions or loops or whatnot):
dfs = [df0, df1, df2, dfN]
Assuming they have some common column, like name in your example, I'd do the following:
df_final = reduce(lambda left,right: pd.merge(left,right,on='name'), dfs)
That way, your...
How to get all subsets of a set? (powerset)
...h is the power set of A."""
length = len(A)
l = [a for a in A]
ps = set()
for i in range(2 ** length):
selector = f'{i:0{length}b}'
subset = {l[j] for j, bit in enumerate(selector) if bit == '1'}
ps.add(frozenset(subset))
return ps
If you want exactly ...
LEFT OUTER JOIN in LINQ
... in categories
join p in products on c.Category equals p.Category into ps
from p in ps.DefaultIfEmpty()
select new { Category = c, ProductName = p == null ? "(No products)" : p.ProductName };
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