Hello all,
I always found help for my problems using the search option, but this time my request is too specific. I have two files that I want to compare. File1 is the index and File2 contains the data:
File1:
chr1 protein_coding exon 500 600 . + . gene_id "20532";... (0 Replies)
hello,
i 'd like your help about a bash script which:
1. finds inside the html file (it is attached with my post) the code number of the Latest Stable Kernel,
2.finds the link which leads to the download location of the Latest Stable Kernel version,
(the right link should lead to the file... (3 Replies)
Hi All,
I have some 6000 text files in a directory. My files are named like 1.txt, 2.txt 3.txt and so on until 6000.txt. I want to count the "number of words" in only first 3000 of them. Any suggestions?
I know wc -w can count the number of words in a text file. I am using Red Hat Linux. (3 Replies)
Hi, I have file like this:
>number1
dlejreoreltedgerere
dgtrtryr
>number2
dkfdjlgdjfeiflefjdfidlfjdifelfjefe
fjdlfjdkfjdlfdjlfdjlfjdigeo
gjelreoureofouererg
>number4
dklfdjfoeueoruer
fjeorueotueoirueorueorueore
gjoeoueorueoreuroerueor
joeuroerueorue
How can i know how many words... (4 Replies)
hi every one i have written this simple shell for counting number of word that user need to find from file
but i have get several error when run it. can someone tell me the problem ?
echo "Enter the file name"
read file
echo "enter word"
read word
for i in \`cat $file`
do
if
then... (1 Reply)
Hi ,
I need to count the number of errors associated with the two words occurring in the file. It's about counting the occurrences of the word "error" for where is the word "index.js". As such the command should look like. Please kindly help. I was trying: grep "error" log.txt | wc -l (1 Reply)
Hi
I have strings like these :
Vengeance mitt
Men Vengeance gloves
Women Quatro Windstopper Etip gloves
Quatro Windstopper Etip gloves
Girls Thermobite hooded jacket
Thermobite Triclimate snow jacket
Boys Thermobite Triclimate snow jacket
and I would like to get the lower case words at... (2 Replies)
Good evening, need your help please
Need to delete certain files before octobre 1 2016, so need to know how many files im going to delete, for instance
ls -lrt file_20160*.lis!wc -l
but using grep -c to another file called bplist which contains the list of all files backed up doesn match... (7 Replies)
Discussion started by: alexcol
7 Replies
LEARN ABOUT MOJAVE
urandom
RANDOM(4) BSD Kernel Interfaces Manual RANDOM(4)NAME
random , urandom -- random data source devices.
SYNOPSIS
pseudo-device random
DESCRIPTION
The random device produces uniformly distributed random byte values of potentially high quality.
To obtain random bytes, open /dev/random for reading and read from it.
The same random data is also available from getentropy(2). Using the getentropy(2) system call interface will provide resiliency to file
descriptor exhaustion, chroot, or sandboxing which can make /dev/random unavailable. Additionally, the arc4random(3) API provides a fast
userspace random number generator built on the random data source and is preferred over directly accessing the system's random device.
/dev/urandom is a compatibility nod to Linux. On Linux, /dev/urandom will produce lower quality output if the entropy pool drains, while
/dev/random will prefer to block and wait for additional entropy to be collected. With Yarrow, this choice and distinction is not necessary,
and the two devices behave identically. You may use either.
The random device implements the Yarrow pseudo random number generator algorithm and maintains its entropy pool. The kernel automatically
seeds the algorithm with additional entropy during normal execution.
FILES
/dev/random
/dev/urandom
HISTORY
A random device appeared in the Linux operating system.
Darwin September 6, 2001 Darwin