Hi,
I have a huge file of bibliographic records in some standard format.I need a script to do some repeatable task as follows:
1. Needs to create folders as the strings starts with "item_*" from the input file
2. Create a file "contents" in each folders having "license.txt(tab... (5 Replies)
Hi,
Following is sample portion of the file;
<JDBCConnectionPool DriverName="oracle.jdbc.OracleDriver"
MaxCapacity="10" Name="MyApp_DevPool"
PasswordEncrypted="{3DES}7tXFH69Xg1c="
Properties="user=MYAPP_ADMIN" ShrinkingEnabled="false"
... (12 Replies)
Good evening! Trying to make a shell script to parse log file and show only required information.
log file has 44 fields and alot of lines, each columns separated by ":".
log file is like:
first_1:3:4:5:6:1:3:4:5:something:notinterested
second_2:3:4:3:4:2
first_1:3:4:6:6:7:8
I am interested... (3 Replies)
Hi to all,
I got this content/pattern from file http.log.20110808.gz
mail1 httpd: Account Notice: close igchung@abc.com 2011/8/7 7:37:36 0:00:03 0 0 1
mail1 httpd: Account Information: login sastria9@abc.com proxy sid=gFp4DLm5HnU
mail1 httpd: Account Notice: close sastria9@abc.com... (16 Replies)
I'm still new to bash script , I have a log file and I want to extract the items within the last 5 days . and also within the last 10 hours
the log file is like this : it has 14000 items started from march 2002 to january 2003
awk '{print $4}' < *.log |uniq -c|sort -g|tail -10
but... (14 Replies)
Hye ShamRock
If you can help me with this difficult task for me then it will save my day
Logs :
==================================================================================================================
... (4 Replies)
Hi, i have a file like this:
<Iteration>
<Iteration_iter-num>3</Iteration_iter-num>
<Iteration_query-ID>lcl|3_0</Iteration_query-ID>
<Iteration_query-def>G383C4U01EQA0A length=197</Iteration_query-def>
<Iteration_query-len>197</Iteration_query-len>
... (9 Replies)
Hello!
I need help :) I have a file like this:
AA BC FG
RF TT GH
DD FF HH
(a few number of rows and three columns) and I want to put the letters of each column in a variable step by step in order to give them as input in another script. So I would like to obtain:
for the 1° loop:... (11 Replies)
Gents,
If is possible please help.
I have a big file (example attached) which contends exactly same value in column, but from column 2 to 6 these values are diff. I will like to compile for all records all columns like the example attached in .csv format (output.rar ).. The last column in the... (11 Replies)
In a particular directory, there can be 1000 files like below.
filename is job901.ksh
#!/bin/ksh
cront -x << EOJ
submit file=$PRODPATH/scripts/genReport.sh maxdelay=30
&node=xnode01
tname=job901
&pfile1=/prod/mldata/data/test1.dat
... (17 Replies)
Discussion started by: vedanta
17 Replies
LEARN ABOUT LINUX
free_hugepages
ALLOC_HUGEPAGES(2) Linux Programmer's Manual ALLOC_HUGEPAGES(2)NAME
alloc_hugepages, free_hugepages - allocate or free huge pages
SYNOPSIS
void *alloc_hugepages(int key, void *addr, size_t len,
int prot, int flag);
int free_hugepages(void *addr);
DESCRIPTION
The system calls alloc_hugepages() and free_hugepages() were introduced in Linux 2.5.36 and removed again in 2.5.54. They existed only on
i386 and ia64 (when built with CONFIG_HUGETLB_PAGE). In Linux 2.4.20 the syscall numbers exist, but the calls fail with the error ENOSYS.
On i386 the memory management hardware knows about ordinary pages (4 KiB) and huge pages (2 or 4 MiB). Similarly ia64 knows about huge
pages of several sizes. These system calls serve to map huge pages into the process's memory or to free them again. Huge pages are locked
into memory, and are not swapped.
The key argument is an identifier. When zero the pages are private, and not inherited by children. When positive the pages are shared
with other applications using the same key, and inherited by child processes.
The addr argument of free_hugepages() tells which page is being freed: it was the return value of a call to alloc_hugepages(). (The memory
is first actually freed when all users have released it.) The addr argument of alloc_hugepages() is a hint, that the kernel may or may not
follow. Addresses must be properly aligned.
The len argument is the length of the required segment. It must be a multiple of the huge page size.
The prot argument specifies the memory protection of the segment. It is one of PROT_READ, PROT_WRITE, PROT_EXEC.
The flag argument is ignored, unless key is positive. In that case, if flag is IPC_CREAT, then a new huge page segment is created when
none with the given key existed. If this flag is not set, then ENOENT is returned when no segment with the given key exists.
RETURN VALUE
On success, alloc_hugepages() returns the allocated virtual address, and free_hugepages() returns zero. On error, -1 is returned, and
errno is set appropriately.
ERRORS
ENOSYS The system call is not supported on this kernel.
FILES
/proc/sys/vm/nr_hugepages Number of configured hugetlb pages. This can be read and written.
/proc/meminfo Gives info on the number of configured hugetlb pages and on their size in the three variables HugePages_Total,
HugePages_Free, Hugepagesize.
CONFORMING TO
These calls are specific to Linux on Intel processors, and should not be used in programs intended to be portable.
NOTES
These system calls are gone; they existed only in Linux 2.5.36 through to 2.5.54. Now the hugetlbfs file system can be used instead. Mem-
ory backed by huge pages (if the CPU supports them) is obtained by using mmap(2) to map files in this virtual file system.
The maximal number of huge pages can be specified using the hugepages= boot parameter.
COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2007-05-31 ALLOC_HUGEPAGES(2)