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Find the extension of a filename in Ruby
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That's really basic stuff:
irb(main):002:0> accepted_formats = [".txt", ".pdf"]
=> [".txt", ".pdf"]
irb(main):003:0> File.extname("example.pdf") # get the extension
=> ".pdf"
irb(main):004:0> accepted_formats.include? File.extname("example.pdf")
=...
Can I have an IF block in DOS batch file?
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The following sample code works fine for me:
@echo off
if ERRORLEVEL == 0 (
echo GP Manager is up
goto Continue7
)
echo GP Manager is down
:Continue7
Please note a few specific details about my sample code:
The space added between the end of the conditional statement, and the opening ...
How to define different dependencies for different product flavors
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190
To define a flavor specific dependency you can use proCompile instead of compile in your depende...
pyplot axes labels for subplots
...mmon labels.
import random
import matplotlib.pyplot as plt
x = range(1, 101)
y1 = [random.randint(1, 100) for _ in xrange(len(x))]
y2 = [random.randint(1, 100) for _ in xrange(len(x))]
fig = plt.figure()
ax = fig.add_subplot(111) # The big subplot
ax1 = fig.add_subplot(211)
ax2 = fig.add_subpl...
Combining two expressions (Expression)
...ambda = Expression.Lambda<Func<T,bool>>(body, expr1.Parameters[0]);
This also works well to negate a single operation:
static Expression<Func<T, bool>> Not<T>(
this Expression<Func<T, bool>> expr)
{
return Expression.Lambda<Func<T, bool>&...
How to read a file in reverse order?
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answered Feb 20 '10 at 10:10
Matt JoinerMatt Joiner
94.2k8585 gold badges321321 silver badges483483 bronze badges
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How to convert char to int?
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answered Sep 8 '10 at 9:03
Joel MuellerJoel Mueller
26.7k88 gold badges6161 silver badges8585 bronze badges
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Open a file from Cygwin
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answered Feb 23 '09 at 13:51
erichuierichui
2,61122 gold badges2121 silver badges1919 bronze badges
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Write a function that returns the longest palindrome in a given string
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answered Oct 26 '13 at 0:32
AnujKuAnujKu
2,15144 gold badges2828 silver badges4040 bronze badges
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How to print matched regex pattern using awk?
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This is the very basic
awk '/pattern/{ print $0 }' file
ask awk to search for pattern using //, then print out the line, which by default is called a record, denoted by $0. At least read up the documentation.
If you only want to get print out the matched word.
awk '...