Hello, I am very new to shell scripting. This problem seems quite easy so it should be quite easy (I hope ^^)
I want to get a random file from a directory. this file will be in one subdirectory, and it will contain spaces.
code I have got so far:
N=find ./*/*.jpg | wc -l
((N=RANDOM%N))
... (6 Replies)
I need to use the $RANDOM command to get a line from a list of lines in a file randomly.
file is
help
go
three
house
film
how do i randomly get one word without looking into the file? (6 Replies)
Hi there folks,
for an exercise for my pupils (you know i am always thinking of them!) i need to randomly re-arrange the words (blank space separated) in a sentence (a line in a textfile). Any inspiration??
Txk so much. (9 Replies)
Hi
I am new to expect. Please if any one can help on my issue its really appreciable. here is my issue:
I want expect script for random passwords and random commands generation.
please can anyone help me?
Many Thanks in advance (0 Replies)
Over the last month or so my CentOS server has been crashing for reasons I do not know. It has been running for over a year with regular yum updates without problems. The load on the server is perfectly normal with CPU usage at 5-6% and RAM usage at less than half of 32GB of RAM (multiple smaller... (3 Replies)
Hi,
Could you please let me know what the following code does, I know that it means generating random numbers, however not sure what is the entire purpose.
R=$(($RANDOM % 2))
delay=$(($RANDOM % 10))
if
then
TEXT='X'
else
... (3 Replies)
Need to use dd to generate a large file from a sample file of random data. This is because I don't have /dev/urandom.
I create a named pipe then:
dd if=mynamed.fifo do=myfile.fifo bs=1024 count=1024
but when I cat a file to the fifo that's 1024 random bytes:
cat randomfile.txt >... (7 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
Write a shell script that will take the sum of two random number?
Ex: Random n1 +Random n2 = result
i tries to write it but i had some dufficulties
... (3 Replies)
Discussion started by: renegade755
3 Replies
LEARN ABOUT PHP
ctype_lower
CTYPE_LOWER(3) 1 CTYPE_LOWER(3)ctype_lower - Check for lowercase character(s)SYNOPSIS
bool ctype_lower (string $text)
DESCRIPTION
Checks if all of the characters in the provided string, $text, are lowercase letters.
PARAMETERS
o $text
- The tested string.
RETURN VALUES
Returns TRUE if every character in $text is a lowercase letter in the current locale.
EXAMPLES
Example #1
A ctype_lower(3) example (using the default locale)
<?php
$strings = array('aac123', 'qiutoas', 'QASsdks');
foreach ($strings as $testcase) {
if (ctype_lower($testcase)) {
echo "The string $testcase consists of all lowercase letters.
";
} else {
echo "The string $testcase does not consist of all lowercase letters.
";
}
}
?>
The above example will output:
The string aac123 does not consist of all lowercase letters.
The string qiutoas consists of all lowercase letters.
The string QASsdks does not consist of all lowercase letters.
NOTES
Note
If an integer between -128 and 255 inclusive is provided, it is interpreted as the ASCII value of a single character (negative val-
ues have 256 added in order to allow characters in the Extended ASCII range). Any other integer is interpreted as a string contain-
ing the decimal digits of the integer.
SEE ALSO ctype_alpha(3), ctype_upper(3), setlocale(3).
PHP Documentation Group CTYPE_LOWER(3)