Go – Reading an integer from standard input

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How do I use the fmt.Scanf function in Go to get an integer input from the standard input?

If this can't be done using fmt.Scanf, what's the best way to read a single integer?

Best Answer

All the included libraries in Go are well documented.

That being said, I believe

func main() {
    var i int
    _, err := fmt.Scanf("%d", &i)
}

does the trick

Related Solutions

PHP standard input

It is possible to read the stdin by creating a file handle to php://stdin and then read from it with fgets() for a line for example (or, as you already stated, fgetc() for a single character):

<?php
$f = fopen( 'php://stdin', 'r' );

while( $line = fgets( $f ) ) {
  echo $line;
}

fclose( $f );
?>

Python – How to read from stdin

You could use the fileinput module:

import fileinput

for line in fileinput.input():
    pass

fileinput will loop through all the lines in the input specified as file names given in command-line arguments, or the standard input if no arguments are provided.

Note: line will contain a trailing newline; to remove it use line.rstrip()

Best Answer

Related Solutions

PHP standard input

Python – How to read from stdin

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