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Detect if stdin is a terminal or pipe?
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140
Use isatty:
#include <stdio.h>
#include <io.h>
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if (isatty(fileno(stdin)))
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How to make child process die after parent exits?
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edited Nov 13 '08 at 18:25
answered Nov 12 '08 at 16:12
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C/C++ check if one bit is set in, i.e. int variable
Is there such a way to check if bit 3 in temp is 1 or 0 without bit shifting and masking.
21 Answers
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Sort a text file by line length including spaces
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Answer
cat testfile | awk '{ print length, $0 }' | sort -n -s | cut -d" " -f2-
Or, to do your original (perhaps unintentional) sub-sorting of any equal-length lines:
cat testfile | awk '{ print length, $0 }' | sort -n | cut -d" " -f2-
In both cases, we have solved...
Creating a BLOB from a Base64 string in JavaScript
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+50
The atob function will decode a Base64-encoded string into a new string with a character for each byte of the binary data.
const byte...
How to delete last character from a string using jQuery?
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You can also try this in plain javascript
"1234".slice(0,-1)
the negative second parameter is an offset from the last character, so you can use -2 to remove last 2 characters etc
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How to use Active Support core extensions
I have Active Support 3.0.3 installed and Rails 3.0.3 with Ruby 1.8.7.
5 Answers
5
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Golang: How to pad a number with zeros when printing?
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The fmt package can do this for you:
fmt.Printf("|%06d|%6d|\n", 12, 345)
Notice the 0 in %06d, that will make it a width of 6 and pad it with zeros. The second one will pad with spaces.
You can see it in action here: http://play.golang.org/p/cinDspMccp
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Declaring variables inside or outside of a loop
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20 Answers
20
Active
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Select tableview row programmatically
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110
From reference documentation:
Calling this method does not cause the delegate to receive a t...