I think I understand the part of your question about the count > 10, but not at all sure about the part "longer than 3 hours".
What does that mean?
(and what does tail +2 do, and why are you directing standard error from SQL Plus when it really doesn't matter (it doesn't write there!)?)
Code:
/home/oracle/tmp10 > cat Test
sqlplus -s scott/tiger << EOF 2> /dev/null
set pages 0
set head off
set feedback off
set termout off
set verify off
set echo off
select something from somethere_that_doesnt_exist;
EOF
/home/oracle/tmp10 > ./Test
select something from somethere_that_doesnt_exist
*
ERROR at line 1:
ORA-00942: table or view does not exist
Hi,
I have such an example(ksh):
name1=Example
directory=/directory1/Example/directory2
match=$(grep -s '$name1' $directory | wc -l)
echo $match
But it replies to me:
0
What I expect from it, is to find $name1 in $directory and produce 1 for me as true, not false. (3 Replies)
Dear all,
I have numerous dat files (a.dat, b.dat...) containing 500 numeric values each. I would like to count them, based on their range and obtain a histogram or a counter.
INPUT:
a.dat
1.3
2.16
0.34
......
b.dat
1.54
0.94
3.13
.....
... (2 Replies)
cat sport_by_month
Month : Jan
sport :Football
sport :Volleyball
Month: Feb
sport :BasketBall
sport: Cricket
sport: Fotball
Month: Mar
Month: APR
sport : Bowling
sport : Climbing
I need your help to have a script that count the number of sports per month and sorted by mont with... (7 Replies)
i having a file
xxxxxxxxxxxxxxx1234 ...........value can be change
xxxxxxxxxxxxxxx1235
xxxxxxxxxxxxxxxx1236
.
.
.
.
xxxxxxxxxxxxxxxxx1300 ...........value can be change
i want to cut last four characters of first line and last line and find the missing pattern.
output should... (4 Replies)
I have this file
1801,A1,2012-12-16 15:59:59.995,id2_3,ab,phoneC2-00,VOE,,,,,,,,,,,,,,,
1802,A1,2012-12-16 15:59:59.995,id2_3,ab=,phoneX1-01,BL,,,,,,,,,,,,,,,
1803,A1,2012-12-16 15:59:59.995,id2_3,ab,phone300,BL,,,,,,,,,,,,,,,
1804,A1,2012-12-16... (4 Replies)
For the following code
SEQ=200
awk -v S="$SEQ" '
$0 ~ S {
N++
print N
}
' "$1"ascii >"$1"search
N is printed 8002 times as it occurred 8002 times in file
how I could print the counter one time only (20 Replies)
Hi Experts,
I am in need for some help. My competence level on unix is not at all helping me to resolve this. Please help.
My Input for a system command is as under:
Counters are getting pegged each hour. I need to have a difference printed rather than pegged counter values.
Counter... (2 Replies)
hello
this script should show all users and space they used without problem :
ls /home >> /root/users.txt
cat /root/users.txt | while read line; do
space=`du -s /home/$line`
echo "$line space is $space"
shift
done
but when i remove pipe ,script run without any output:
ls /home... (4 Replies)
Discussion started by: nimafire
4 Replies
LEARN ABOUT DEBIAN
refcount_release
REFCOUNT(9) BSD Kernel Developer's Manual REFCOUNT(9)NAME
refcount, refcount_init, refcount_acquire, refcount_release -- manage a simple reference counter
SYNOPSIS
#include <sys/param.h>
#include <sys/refcount.h>
void
refcount_init(volatile u_int *count, u_int value);
void
refcount_acquire(volatile u_int *count);
int
refcount_release(volatile u_int *count);
DESCRIPTION
The refcount functions provide an API to manage a simple reference counter. The caller provides the storage for the counter in an unsigned
integer. A pointer to this integer is passed via count. Usually the counter is used to manage the lifetime of an object and is stored as a
member of the object.
The refcount_init() function is used to set the initial value of the counter to value. It is normally used when creating a reference-counted
object.
The refcount_acquire() function is used to acquire a new reference. The caller is responsible for ensuring that it holds a valid reference
while obtaining a new reference. For example, if an object is stored on a list and the list holds a reference on the object, then holding a
lock that protects the list provides sufficient protection for acquiring a new reference.
The refcount_release() function is used to release an existing reference. The function returns a non-zero value if the reference being
released was the last reference; otherwise, it returns zero.
Note that these routines do not provide any inter-CPU synchronization, data protection, or memory ordering guarantees except for managing the
counter. The caller is responsible for any additional synchronization needed by consumers of any containing objects. In addition, the call-
er is also responsible for managing the life cycle of any containing objects including explicitly releasing any resources when the last ref-
erence is released.
RETURN VALUES
The refcount_release function returns non-zero when releasing the last reference and zero when releasing any other reference.
HISTORY
These functions were introduced in FreeBSD 6.0.
BSD January 20, 2009 BSD