I need some help with this code below, i doesnt know why it will run twice with my function, but my function only got if else, any other way that can read line and put into array?
Just want to learn how these are read into array but I don't seem to get it right what do I go wrong?
Below is the sample
Thanks
input
1 2 3 4
5 6 7 8
9 1 2 3
4 5 6 7
#!/usr/bin/perl
open (InFILE,"input");
while (<InFILE>) {
@ar = split ; (5 Replies)
Hi All,
I am having trouble through, I am reading the input from tab delimited file containing several records,
e.g.
line1 field1 field2 field3 so on..
line2 field1 field2 field3 so on..
..
..
on the basis of certain fields for each record in input file, I have to retrieve... (1 Reply)
I have a file that is a text file, how to get all the words into and array, i am able to get each line but not each word :(.
Here is what i searched and already found...https://www.unix.com/shell-programming-scripting/99207-pipe-text-file-into-array.html.
This one reads a whole line into... (6 Replies)
Hello,
i have a file "Movie.ini" looking e.g. like follows
* MOVIE A
bla bla
MOVIE B
blubb blubb
MOVIE C
I'd like to read the file "Movie.ini" with cat and grep and check whether it includes the string MOVIE only with a '*' at the beginnig.
By doing
"cat Movie.ini| grep MOVIE... (14 Replies)
Hi,
I am trying to read a set of numbers that are in scientific notation into a file so I can do some math on them, but when I display the array contents the numbers aren't the same as the numbers in the file.
Could someone explain why? Thanks.
int main()
{
double fArray;
... (3 Replies)
I wrote a simply perl that searched a file for a particualr value and if it found it, rite it and the next three lines to a file. Now I have been asked to check those next three lines for a different value and only write those lines if it finds the second value.
I was thinking the best way to... (1 Reply)
Hi,
I am not so familiar with bash scripting and would appreciate your help here.
I have a text file 'input.txt' like this:
2 3 4
5 6 7
8 9 10
I want to store each column in an array like this
a ={2 5 8}, b={3 6 9}, c={4 7 10}
so that i can access any element, e.g b=6 for the later use. (1 Reply)
Hi,
I need to read a file into array and print them in a loop:-
1st file :-cat a.txt
RC1
RC2
RC3
RC4
My Program:-
#!/bin/ksh
index=0
while
do
read cnt<a.txt
print "cnt value is ${cnt}
index=`expr $index + 1`
done
Code tags for code, please. (5 Replies)
Hi I have a file with contents as below :
server | ABC Issue : File System Missing XYZ Issue : Wrong Syntax PQR Issue : Old File to be removed
Now I am looking for an o/p similar to
server <tab> ABC Issue : File System Missing
<tab> XYZ Issue : Wrong Syntax
<tab>... (4 Replies)
Hello,
I am running under ubuntu1 14.04 and I have a script which is sending given process names to vanish so that I'd see less output when I run most popular tools like top etc in terminal window. In usual method it works.
Whenever I restart the system, I have to enter the same data from... (2 Replies)
Discussion started by: baris35
2 Replies
LEARN ABOUT HPUX
pthread_rwlock_unlock
pthread_rwlock_unlock(3T)pthread_rwlock_unlock(3T)NAME
pthread_rwlock_unlock() - unlock a read-write lock.
SYNOPSIS PARAMETERS
rwlock Pointer to the read-write lock to be unlocked.
DESCRIPTION
The function is called by the owner to release the read-write lock referenced by rwlock. Results are undefined if the read-write lock
rwlock is not held by the calling thread.
If this function is called to release a read lock on the read-write lock rwlock and there are other read locks currently held on this read-
write lock, the read-write lock shall remain in the read locked state but without the current thread as one of its owners. If this function
releases the last read lock for this read-write lock, the object shall be put in the unlocked state with no owners.
If this function is called to release a write lock on the read-write lock rwlock, the read-write lock shall be put in the unlocked state
with no owners.
If the call to the function results in the read-write lock becoming unlocked and there are threads waiting to acquire the read-write lock
for writing, the scheduling policy is used to determine which thread shall acquire the read-write lock for writing. If there are threads
waiting to acquire the read-write lock object for reading, the scheduling policy is used to determine the order in which the waiting
threads shall acquire the read-write lock object for reading. If there are multiple threads blocked on rwlock for both read locks and
write locks, it is unspecified whether the readers will acquire the lock first or whether a writer will acquire the lock first.
Results are undefined if this function is called with an uninitialized read-write lock.
RETURN VALUE
Upon successful completion, returns zero. Otherwise, an error number is returned to indicate the error (the variable is not set).
ERRORS
For each of the following conditions, if the condition is detected, the function returns the corresponding error number:
[EINVAL] The value specified by rwlock does not refer to an initialized read-write lock object.
[EPERM] The current thread does not own the read-write lock.
AUTHOR
was developed by X/Open.
SEE ALSO pthread_rwlock_init(3T), pthread_rwlock_destroy(3T), pthread_rwlock_rdlock(3T), pthread_rwlock_wrlock(3T), pthread_rwlock_tryrdlock(3T),
pthread_rwlock_trywrlock(3T).
STANDARDS CONFORMANCE
Pthread Library pthread_rwlock_unlock(3T)