Im new to C, and Im having a hard time getting a random number.
In bash, I would do something similar to the following to get a random number;
#!/bin/bash
seed1=$RANDOM
seed2=$RANDOM
seed3=$RANDOM
SEED=`expr $seed1 * $seed2 / $seed3`
echo ${SEED%.*}
Now, in online examples... (4 Replies)
Hello Everyone.
I am trying to display contains of a file from a specific line to a specific line(let say, from line number 3 to line number 5). For this I got the shell script as shown below:
if ; then
if ; then
tail +$1 $3 | head -n $2
else
... (5 Replies)
Hello All, I am stuck up in a program where the rand functions ends up giving all the same integers. Tried sleep, but the numbers turned out to be same... Can anyone help me out how to fix this issue ? I have called the srand once in the program, but I feel like when I call fork the child process... (5 Replies)
Can anybody tell me why the second part of this script (Sieve of Eratosthenes) isn't working properly. This isnt coursework or homework just private studies ( Yes Project Euler began it ) I know there are easier ways of doing this too but I want to do it this way.:p
Iam using Cygwin on Vista... (3 Replies)
Hi,
I have a series of data files for which I wish to plot using "splot". Say, the files names are like:
950_data,951_data,952_data,......1000_data.
For one file , say to plot 950_data, i write following lines into a single file and load it in the gnuplot as :
gnuplot> load 'plot'
... (6 Replies)
Hi there I am trying to generate a random number between 40 and 70 using the shell here is my code so far and it keeps going above 70. all help much appreciated!
comp=$(( RANDOM%70+40 ))
echo $comp (4 Replies)
Having a hard time with this. Very new to scripting and linux. Spent all sunday trying to do this. Appreciate some help and maybe help breaking down what the syntax does.
Create a Bash program. It should have the following properties
• Creates a secret number between 1 and 100
i. The... (3 Replies)
Hi Guys and gals...
As you know I am getting to grips with POSIX and hit this stumbling block.
Generating two random numbers 0 to 255 POSIXly. Speed in not important hence the 'sleep 1' command.
I have done a demo that works, but it sure is ugly! Is there a better way?
#!/bin/sh
# Random... (12 Replies)
Discussion started by: wisecracker
12 Replies
LEARN ABOUT PHP
gopher_parsedir
GOPHER_PARSEDIR(3) 1 GOPHER_PARSEDIR(3)gopher_parsedir - Translate a gopher formatted directory entry into an associative array.SYNOPSIS
array gopher_parsedir (string $dirent)
DESCRIPTION gopher_parsedir(3) parses a gopher formatted directory entry into an associative array.
While gopher returns text/plain documents for actual document requests. A request to a directory (such as /) will return specially encoded
series of lines with each line being one directory entry or information line.
PARAMETERS
o $dirent
- The directory entry.
RETURN VALUES
Returns an associative array whose components are:
o type - One of the GOPHER_XXX constants.
o title - The name of the resource.
o path - The path of the resource.
o host - The domain name of the host that has this document (or directory).
o port - The port at which to connect on host.
Upon failure, the additional data entry of the returned array will hold the parsed line.
EXAMPLES
Example #1
Hypothetical output from gopher://gopher.example.com/
0All about my gopher site. /allabout.txt gopher.example.com 70
9A picture of my cat. /pics/cat.png gopher.example.com 70
1A collection of my writings. /stories gopher.example.com 70
hThe HTTP version of this site. URL:http://www.example.com gopher.example.com 70
1Mirror of this site in Spain. / gopher.ejemplo.co.es 70
iWelcome to my gopher site. error.host 1
iPlease select one of the options above error.host 1
iSend complaints to /dev/null error.host 1
iLong live gopher! error.host 1
In the example above, the root directory at gopher.example.com knows about one DOCUMENT identified by 0 located at gopher://gopher.exam-
ple.com:70/allabout.txt. It also knows about two other directory (which have their own listing files) at
gopher://gopher.exmaple.com:70/stories and at gopher://gopher.ejemplo.co.es:70/. In addition there is a binary file, a link to an HTTP url,
and several informative lines.
By passing each line of the directory listing into gopher_parsedir(3), an associative array is formed containing a parsed out version of
the data.
Example #2
Using gopher_parsedir(3)
<?php
$directory = file("gopher://gopher.example.com");
foreach($directory as $dirent) {
print_r(gopher_parsedir($dirent));
}
?>
The above example will output:
Array (
[type] => 0
[title] => All about my gopher site.
[path] => /allabout.txt
[host] => gopher.example.com
[port] => 70
)
Array (
[type] => 9
[title] => A picture of my cat.
[path] => /pics/cat.png
[host] => gopher.example.com
[port] => 70
)
Array (
[type] => 1
[title] => A collection of my writings.
[path] => /stories
[host] => gopher.example.com
[port] => 70
)
Array (
[type] => 254
[title] => The HTTP version of this site.
[path] => URL:http://www.example.com
[host] => gopher.example.com
[port] => 70
)
Array (
[type] => 1
[title] => Mirror of this site in Spain.
[path] => /
[host] => gopher.ejemplo.co.es
[port] => 70
)
Array (
[type] => 255
[title] => Welcome to my gopher site.
[path] =>
[host] => error.host
[port] => 1
)
Array (
[type] => 255
[title] => Please select one of the options above.
[path] =>
[host] => error.host
[port] => 1
)
Array (
[type] => 255
[title] => Send complaints to /dev/null
[path] =>
[host] => error.host
[port] => 1
)
Array (
[type] => 255
[title] => Long live gopher!
[path] =>
[host] => error.host
[port] => 1
)
PHP Documentation Group GOPHER_PARSEDIR(3)