Ah yes, the awk gets executed so quickly that every time it gets called it uses the same epoch time as the seed for srand(). So it will not work that way.. With a sleep 1 before the done statement it works, but that means an n seconds delay. Probably best to do the iteration within awk.
If Xterra were to change the line:
in the script I provided earlier to:
the issue raised here would seem to be solved.
I've been working on getting a script to take size, dir name and file name variables from an input file and creating the same dir structure along with the file of specific size.
An example of the input file:
size/dirname/filename
2100/JAN_06/12345ABC.TCC
2354/FEB_06/24564XYZ.NOS... (2 Replies)
I have a directory of files that look like filename 001.ext, filename 002.ext, etc. I'd like to rename the files with unique random numbered names, so that the original filenames are stripped and the files are given a new, random number name. I'm not super new to UNIX, but I don't often use it for... (2 Replies)
Hi,
I've list of files in a directory, which have date stamp value in their names.
ex:
abc_data_20071102.csv,
abc_data_20091221.csv,
abc_data_20100110.csv,
abc_data_20100222.csv,
abc_data_20080620.csv,... etc.,
I need to select and process only files, within the given date... (4 Replies)
My files look like this
And I need to cut the sequences at the last "A" found in the following 'pattern' -highlighted for easier identification, the pattern is the actual file is not highlighted.
The expected result should look like this
Thus, all the sequences would end with AGCCCTA... (2 Replies)
My file looks like this
But I need to remove the entry with the identifier >Reference1 along with the entire sequence. Thus, I will end up having the following file
Thanks in advance! (2 Replies)
I have two files with thousands of sequences of different lengths. infile1 contains the actual sequences and infile2 the scores for each A, T, G and C in infile1. Something like this:
infile1:
>HZVJKYI01ECH5R
TTGATGTGCCAGCTGCCGTTGGTGTGCCAA
>HZVJKYI01AQWJ8
GGATATGATGATGAACTGGTTTGGCACACC... (4 Replies)
I have two directories Dir_A and Dir_A_Arc. Need help with a shell script.
The shell script needs to take the path to these two directories as parameters $1 and $2.
The script needs to check if any files exist in these directories and if either of the directories are empty then exit... (5 Replies)
Hello All,
May i please know how do i ensure my split command would NOT generate incomplete output files like below, the last lines in each file is missing some columns or last line is complete.
split -b 50GB File File_
File_aa
|551|70210203|xxxxxxx|12/22/2010 20:44:58|11/01/2010... (1 Reply)
Hi,
I have to add 7 bases of specific nucleotide at the beginning and ending of all the fasta sequences of a file. For example, I have a multi fasta file namely test.fasta as given below
test.fasta
>TalAA18_Xoo_CIAT_NZ_CP033194.1:_2936369-2939570:+1... (1 Reply)
Discussion started by: dineshkumarsrk
1 Replies
LEARN ABOUT PHP
mt_srand
MT_SRAND(3) 1 MT_SRAND(3)mt_srand - Seed the better random number generatorSYNOPSIS
void mt_srand ([int $seed])
DESCRIPTION
Seeds the random number generator with $seed or with a random value if no $seed is given.
Note
There is no need to seed the random number generator with srand(3) or mt_srand(3) as this is done automatically.
PARAMETERS
o $seed
- An optional seed value
RETURN VALUES
No value is returned.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.2.1 | |
| | |
| | The Mersenne Twister implementation in PHP now |
| | uses a new seeding algorithm by Richard Wagner. |
| | Identical seeds no longer produce the same |
| | sequence of values they did in previous versions. |
| | This behavior is not expected to change again, |
| | but it is considered unsafe to rely upon it none- |
| | theless. |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
mt_srand(3) example
<?php
// seed with microseconds
function make_seed()
{
list($usec, $sec) = explode(' ', microtime());
return (float) $sec + ((float) $usec * 100000);
}
mt_srand(make_seed());
$randval = mt_rand();
?>
SEE ALSO mt_rand(3), mt_getrandmax(3), srand(3).
PHP Documentation Group MT_SRAND(3)