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Getting the count of unique values in a column in bash
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153
To see a frequency count for column two (for example):
awk -F '\t' '{print $2}' * | sort | uniq...
How to initialize a two-dimensional array in Python?
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383
A pattern that often came up in Python was
bar = []
for item in some_iterable:
bar.append...
Java: How to convert List to Map
...t.size());
– Víctor Romero
Jun 5 '13 at 12:18
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show 5 mo...
How to mock an import
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138
You can assign to sys.modules['B'] before importing A to get what you want:
test.py:
import s...
iPhone: How to get current milliseconds?
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273
[[NSDate date] timeIntervalSince1970];
It returns the number of seconds since epoch as a doubl...
How do I change the value of a global variable inside of a function
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answered Jun 3 '12 at 22:41
SpudleySpudley
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Postgres: “ERROR: cached plan must not change result type”
This exception is being thrown by the PostgreSQL 8.3.7 server to my application.
Does anyone know what this error means and what I can do about it?
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What's the best visual merge tool for Git? [closed]
...'s the best tool for viewing and editing a merge in Git? I'd like to get a 3-way merge view, with "mine", "theirs" and "ancestor" in separate panels, and a fourth "output" panel.
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How to grep a text file which contains some binary data?
...ile through cat -v, e.g
$ cat -v tmp/test.log | grep re
line1 re ^@^M
line3 re^M
which could be then further post-processed to remove the junk; this is most analogous to your query about using tr for the task.
share
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How to stop Eclipse formatter from placing all enums on one line
...icy to Wrap all elements, every element on a new line (...) so it now says 3 of 3 in the parenthesis.
Uncheck Force split, even if line shorter than maximum line width (...) so it now says 3 of 3 in the parenthesis.
Select the Constants treenode
Check Force split, even if line shorter than maximum l...