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how to get the current working directory's absolute path from irb
I'm running Ruby on Windows though I don't know if that should make a difference. All I want to do is get the current working directory's absolute path. Is this possible from irb? Apparently from a script it's possible using File.expand_path(__FILE__)
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Platform independent size_t Format specifiers in c?
I want to print out a variable of type size_t in C but it appears that size_t is aliased to different variable types on different architectures. For example, on one machine (64-bit) the following code does not throw any warnings:
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JOIN two SELECT statement results
...ing it for?
– petrosmm
Apr 18 at 21:05
1
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Bash script - variable content as a command to run
I have a Perl script that gives me a defined list random numbers that correspond to the lines of a file. Next I want to extract those lines from the file using sed .
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Save Screen (program) output to a file
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105
You can also use Control-a + H to save loggings into screenlog.n file.
One more Control-a + H t...
How to force cp to overwrite without confirmation
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codelingcodeling
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Plot two graphs in same plot in R
... data to be packed in data.frame.
# Data generation
x <- seq(-2, 2, 0.05)
y1 <- pnorm(x)
y2 <- pnorm(x,1,1)
df <- data.frame(x,y1,y2)
Basic solution:
require(ggplot2)
ggplot(df, aes(x)) + # basic graphical object
geom_line(aes(y=y1), colour="red") + # first la...
How to check if a string starts with one of several prefixes?
I have the following if statement:
7 Answers
7
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How to have the formatter wrap code with IntelliJ?
... all the time
– ACV
Jul 1 '19 at 11:05
This is correct, but in new versions, additional options were added to provide ...