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Using ls to list directories and their total sizes
..."./" $9]), $0); print $0} }'
Awk code explained:
if($1 == "total") { // Set X when start of ls is detected
X = 1
} else if (!X) { // Until X is set, collect the sizes from `du`
SIZES[$2] = $1
} else {
// Replace the size on current current line (with alignment)
sub($5 "[ ]*", sprintf("%-...
Pandas get topmost n records within each group
...ata)
EDIT: As mentioned by the questioner, use df.groupby('id').head(2).reset_index(drop=True) to remove the multindex and flatten the results.
>>> df.groupby('id').head(2).reset_index(drop=True)
id value
0 1 1
1 1 2
2 2 1
3 2 2
4 3 1
5 4 1
...
Command line: piping find results to rm
... editor after snippets, if snippets enabled
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What are “named tuples” in Python?
...;> pt1 = Point(1.0, 5.0)
>>> pt1.x = 2.0
AttributeError: can't set attribute
If you want to be able change the values, you need another type. There is a handy recipe for mutable recordtypes which allow you to set new values to attributes.
>>> from rcdtype import *
>>&g...
Remove all special characters with RegExp
... aren't in your safelist.
The caret (^) character is the negation of the set [...], gi say global and case-insensitive (the latter is a bit redundant but I wanted to mention it) and the safelist in this example is digits, word characters, underscores (\w) and whitespace (\s).
...
Rebasing and what does one mean by rebasing pushed commits
...ble branch just before merging to master), then rebuild the pu branch by resetting to next, and merging all the topic branches. (Source: Documentation/howto/maintain-git.txt git.kernel.org/?p=git/git.git;a=blob;f=Documentation/howto/… )
– Cascabel
Apr 26 '10 ...
Programmatically set height on LayoutParams as density-independent pixels
Is there any way to set the height/width of a LayoutParams as density-independent pixels (dp)? It looks like the height/width, when set programmatically, are in pixels and not dp.
...
How can I find out what FOREIGN KEY constraint references a table in SQL Server?
I am trying to drop a table but getting the following message:
15 Answers
15
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Change multiple files
The following command is correctly changing the contents of 2 files.
9 Answers
9
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Why can't decimal numbers be represented exactly in binary?
...would look awkward with just two fingers.
– Lars Haugseth
Jul 6 '09 at 21:39
20
@muusbolla: No. T...