07-08-2011
to protect your text file, set the permisson as 600
6 - read & write for you
8 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Definitely a unix dummy. I edited the paths in the /etc/profile file - following the instructions on an install package. Now can't use vi, cat pg ls or any other unix commands. Guess I'm in big trouble.
Path reads
MANPATH=/opt/hpnp/man
PATH=/opt/hpnpl/bin
LD_LIBRARY_PATH=/opt/hpnp/lib
... (4 Replies)
Discussion started by: thewetch
4 Replies
2. Solaris
I have X4500 and I created a user. I wanted to give him root privileges and for editing the sudoers files I typed visudo sudoers. But it said visudo command not found. After googling I found that we need to set path in etc/profile. I edited that and put the following command
... (3 Replies)
Discussion started by: bharu_sri
3 Replies
3. Shell Programming and Scripting
How to check when was the last time the crontab was updated and also what was the modification done ? (2 Replies)
Discussion started by: mail2sant
2 Replies
4. UNIX for Dummies Questions & Answers
HI!
I have a file that looks like this:
>ANKRD30_2kb
AAGTAACCAATGCAGGAAACCGAGAGGAGAGGTTTGGAAGGTGGTTTAGTGAGGTAATCCATCTTTTCT
AGTGATAAACTGGCACCCAGTCAATTTATTCATCAGAAGGGAATACATCAGCCTGGCGTGGTGGCTCGC
CCCCGACCCTGTCAGCGTCACCAGCAGCGCGGATCCATGGGCCAGAAGCCTCTAGGGCGCCTAAGTCAG
Number of residues in the... (9 Replies)
Discussion started by: vanesa1230
9 Replies
5. Shell Programming and Scripting
I was trying to write a script that will process recently creatd file.
From below, the script should process input_20111230.dat file.
sam:/top/work/data/input: ls -ltr input_*.dat
-rw-rw-rw- 1 work edprod 455668 Dec 24 09:16 input_20111224.dat
-rw-r--r-- 1 work edprod ... (7 Replies)
Discussion started by: siteregsam
7 Replies
6. UNIX and Linux Applications
Hi,
I would like to ask about the notepad++ text editor application, Although there are alternative and more great text editor in linux (gedit, geany, jedit) im still using the notepad++ sometimes cause for some of my own reason one of those is the minimalist text(what i mean is notepad++ has a... (2 Replies)
Discussion started by: jao_madn
2 Replies
7. UNIX and Linux Applications
Can anyone explain why a editable pdf becomes unreadable after edited with okular? (5 Replies)
Discussion started by: cokedude
5 Replies
8. Shell Programming and Scripting
hi all,
trying this using shell/bash with sed/awk/grep
I have two files, one containing one column, the other containing multiple columns (comma delimited).
file1.txt
abc12345
def12345
ghi54321
...
file2.txt
abc1,text1,texta
abc,text2,textb
def123,text3,textc
gh,text4,textd... (6 Replies)
Discussion started by: shogun1970
6 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)