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Grep characters before and after match?
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3 characters before and 4 characters after
$> echo "some123_string_and_another" | grep -o -P '.{0,3}string.{0,4}'
23_string_and
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Redirect stdout pipe of child process in Go
...hing more interesting
cmd := exec.Command("ls", "-l")
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
cmd.Run()
}
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Python: Making a beep noise
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Or def sos(): for i in range(0, 3): winsound.Beep(2000, 100) for i in range(0, 3): winsound.Beep(2000, 400) for i in range(0, 3): winsound.Beep(2000, 100). I should probably go ba...
ValueError: invalid literal for int() with base 10: ''
...answered Apr 23 '19 at 3:21
Brad123Brad123
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Sorting a list using Lambda/Linq to objects
... answered Jan 2 '13 at 16:32
gls123gls123
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Easiest way to compare arrays in C#
...or tuples via using StructuralComparisons type:
object[] a1 = { "string", 123, true };
object[] a2 = { "string", 123, true };
Console.WriteLine (a1 == a2); // False (because arrays is reference types)
Console.WriteLine (a1.Equals (a2)); // False (because arrays is reference types)
IStruct...
Using an integer as a key in an associative array in JavaScript
...ered Mar 24 '14 at 12:51
Jesuslg123Jesuslg123
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Total memory used by Python process?
... for various operating systems, including Linux, Windows 7, etc.:
import os
import psutil
process = psutil.Process(os.getpid())
print(process.memory_info().rss) # in bytes
On my current Python 2.7 install with psutil 5.6.3, the last line should be
print(process.memory_info()[0])
instead (t...
How do I get the name of the active user via the command line in OS X?
How do I get the name of the active user via the command line in OS X?
12 Answers
12
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List directory tree structure in python?
I know that we can use os.walk() to list all sub-directories or all files in a directory. However, I would like to list the full directory tree content:
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