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Function for Factorial in Python
How do I go about computing a factorial of an integer in Python?
8 Answers
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How could the UNIX sort command sort a very large file?
...rom history, older unix machines were small and the default memory size is set small. Adjust this as big as possible for your workload to vastly improve sort performance. Set the working directory to a place on your fastest device that has enough space to hold at least 1.25 * the size of the file be...
Format Float to n decimal places
...ok at DecimalFormat. You can easily use it to take a number and give it a set number of decimal places.
Edit: Example
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Read text file into string array (and write)
... {
lines = append(lines, buffer.String())
buffer.Reset()
}
}
if err == io.EOF {
err = nil
}
return
}
func writeLines(lines []string, path string) (err error) {
var (
file *os.File
)
if file, err = os.Create(path); err != n...
What is %2C in a URL?
... editor after snippets, if snippets enabled
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Find the PID of a process that uses a port on Windows
...a command shell and type (saying your port is 123456):
netstat -a -n -o | find "123456"
You will see everything you need.
The headers are:
Proto Local Address Foreign Address State PID
TCP 0.0.0.0:37 0.0.0.0:0 LISTENING 1111
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Functional programming - is immutability expensive? [closed]
The question is in two parts. The first is conceptual. The next looks at the same question more concretely in Scala.
9 Answ...
Can I export a variable to the environment from a bash script without sourcing it?
...rce or . to execute the script in the context of the calling shell:
$ cat set-vars1.sh
export FOO=BAR
$ . set-vars1.sh
$ echo $FOO
BAR
Another way is to have the script, rather than setting an environment variable, print commands that will set the environment variable:
$ cat set-vars2.sh
#!/bi...
A more useful statusline in vim? [closed]
...ry airline, it starts fast (pure vimscript). And takes way less effort to setup, especially with Vundle or Pathogen. And once you install powerline font it more or less look like airline. github.com/Lokaltog/powerline-fonts
– snowbound
Apr 23 '14 at 13:46
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Determine if a function exists in bash
Currently I'm doing some unit tests which are executed from bash. Unit tests are initialized, executed and cleaned up in a bash script. This script usualy contains an init(), execute() and cleanup() functions. But they are not mandatory. I'd like to test if they are or are not defined.
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