02-22-2009
Someone should lock this year old thread, for some reason it attracts attention.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have to add a variable value to an array, something like this:
......
@my_array_name = $value_of_this_variable;
This doesnt seem to work, any ideas why?
Thanks! (4 Replies)
Discussion started by: looza
4 Replies
2. Shell Programming and Scripting
I am trying to use a script to replace the header of each file, whose filename are stored within the array $test, using the sed command within a Perl script as follows:
$count = 0;
while ( $count < $#test )
{
`sed -e 's/BIOGRF 321/BIOGRF 332/g' ${test} > 0`;
`cat 0 >... (2 Replies)
Discussion started by: userix
2 Replies
3. Shell Programming and Scripting
Hi,
Is there an easy way to simulate following Perl code in Bash.
if ( grep {$my_value eq $_} @ARGV ){
print "Do Something\n";
} else {
die "Invalid value";
} (0 Replies)
Discussion started by: paragkalra
0 Replies
4. Shell Programming and Scripting
Hi,
I have 2 arrays:
@names=qw(amith veena chaitra);
@files=qw(file.txt file1.txt file3.txt);
There is one to one relationship between names and files.
There needs to be mapping created between names and files.
The output should be like this:
amith --> file.txt
veena --->... (3 Replies)
Discussion started by: vanitham
3 Replies
5. Shell Programming and Scripting
I have an array and two variables as below,
I need to check if $datevar is present in $filename.
If so, i need to replace $filename with the values in the array.
I need the output inside an ARRAY
How can this be done.
Any help will be appreciated. Thanks in advance. (2 Replies)
Discussion started by: irudayaraj
2 Replies
6. Shell Programming and Scripting
Hi all,
Not sure if this should be in the programming forum, but I believe it will get more response under the Shell Programming and Scripting FORUM.
Am trying to write a customized df script in Perl and need some help with regards to using arrays and file handlers.
At the moment am... (3 Replies)
Discussion started by: newbie_01
3 Replies
7. UNIX for Advanced & Expert Users
Hi,
i want to search and replace array values by using perl
perl -pi -e "s/${d$i]}/${b$j]}" *.xml
i am using while loop for the same. if i excute this,it shows "Substitution replacement not terminated at -e line 1.".
please tell me what's wrong this line (1 Reply)
Discussion started by: arindam guha
1 Replies
8. Shell Programming and Scripting
Hi all,
I have written a perl code and stored the data into Data structure using Data::Dumper module.
But not sure how to retreive the data from the Data::Dumper.
Eg.
Based on the key value( Here CRYPTO-6-IKMP_MODE_FAILURE I should be able to access the internal hash elements(keys) ... (1 Reply)
Discussion started by: scriptscript
1 Replies
9. Shell Programming and Scripting
I know that
@food = %fruit;
Works. But how do I assign %fruit and %veggies to @food ? (2 Replies)
Discussion started by: popeye
2 Replies
10. Shell Programming and Scripting
I'm trying to exlude a list of values with perl to process while reading in a file. Is there a way to use the next if with a list?
Example:
@array = qw(val1 val2 val3 val6);
while (<>) {
next if $_ =~ @array; # values I don't want to process here
print; # process the rest here
}... (8 Replies)
Discussion started by: timj123
8 Replies
LEARN ABOUT HPUX
pthread_rwlock_wrlock
pthread_rwlock_wrlock(3T) pthread_rwlock_wrlock(3T)
NAME
pthread_rwlock_wrlock(), pthread_rwlock_trywrlock() - lock or attempt to lock a read-write lock for writing
SYNOPSIS
PARAMETERS
rwlock Pointer to the read-write lock to be locked for writing.
DESCRIPTION
The function applies a write lock to the read-write lock object referenced by rwlock. The calling thread acquires the write lock if no
other thread (reader or writer) holds the read-write lock rwlock. Otherwise, the thread blocks (that is, it does not return from the call)
until it can acquire the lock. Results are undefined if the calling thread holds the read-write lock (whether a read or a write lock) at
the time the call is made.
The function applies a write lock as in the function with the exception that the function fails if any thread currently holds rwlock (for
reading or writing).
Results are undefined if any of these functions are called with an uninitialized read-write lock.
If a signal is delivered to a thread waiting for a read-write lock, upon return from the signal handler, the thread shall resume waiting
for the read-write lock as if it was not interrupted.
RETURN VALUE
Upon successful completion, and return zero. Otherwise, an error number is returned to indicate the error (the variable is not set).
ERRORS
If any of the following occur, the function returns the corresponding error number:
[EBUSY] The read-write lock rwlock could not be acquired for writing because it was already locked for reading or writing.
For each of the following conditions, if the condition is detected, the and functions return the corresponding error number:
[EINVAL] The value specified by rwlock does not refer to an initialized read-write lock.
[EDEADLK] The current thread already owns the read-write lock for reading or writing.
AUTHOR
and were developed by X/Open.
SEE ALSO
pthread_rwlock_init(3T), pthread_rwlock_destroy(3T), pthread_rwlock_tryrdlock(3T), pthread_rwlock_rdlock(3T), pthread_rwlock_unlock(3T).
STANDARDS CONFORMANCE
Pthread Library pthread_rwlock_wrlock(3T)