proc freq

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[SAS base] Proc freq

General format: 1 Proc freq;2 Tables variable_combinations/options;3/*Variable_combinations4If it is a single variable: Table variable-Name;5If multiple variables exist: Table variable-name-1 variable-name-2...;6If it is a cross variable: tables variable-name-1 * variable-name-2;7*/ Common options include: 1 List: Set cross- tabulations (joined table) is output in List format instead of the default gri

Proc Classes in Ruby and Proc class methods Proc.new usage Resolution _ruby topics

Proc is a process object which is obtained after the object processing of block and its context (local variable scope and stack frame). You can use proc like a nameless function, but it does not import the scope of local variables (you can use dynamic local variables as proc local variables). In the following example, the Var variable is called because the

Explain the code block object Proc in Ruby, and explain the ruby object proc.

Explain the code block object Proc in Ruby, and explain the ruby object proc. Proc object Proc is a block conversion object. There are four methods to create a Proc: Sample Code # Method 1 inc = Proc. new {| x + 1} inc. call (2) #

Proc file system-z (Great description of Proc)

Pxe2 writes 'proc file system as a pseudo file system, which only exists in the memory without occupying the external storage space. It provides interfaces for accessing system kernel data in the form of a file system. Users and applications can obtain system information through proc ...... The proc file system is a pseudo-file system that only exists in the mem

Core dump and/proc debugging-orisun-blog park core dump and/proc debugging

Core dump and/proc debugging-orisun-blog Core dump and/proc debugging Core Dump Using core dump is post-event debugging (postmortem Debug ). First, set the core file size to 1024. Orisun @ zcypc :~ $ Ulimit-C 0 Orisun @ zcypc :~ $ Ulimit-C 1024 Note that this modification is only valid for the current Shell Root @ zcypc:/home/orisun # echo "/corefile/Core-% E-% P-% t">/

The Association of the three linux/proc/sys/fs/file-nr/proc/sys/fs/file-max/etc/security/limits.conf

Ulimit-n corresponding/etc/security/limits.conf file settingsProblem: Can ' t open so many files for Linux OPS students, I believe they have encountered this problem.Under Linux All resources are files, ordinary files are files, disk printers are files, sockets of course also files. The system is set to 1024 by default, but this number is not enough for servers, especially large concurrency, so we need to change the actual situation to a larger and more reasonable value.Modify methodTemporary so

Proc-fs programming and proc-fs Programming

Proc-fs programming and proc-fs Programming I. Introduction The Proc file system is a pseudo-File System (Virtual File System) on Linux. It stores a series of special files in the running status of the current kernel, you can use these files to view the system hardware and currently running processes, or even change the running status of the kernel by changing s

Linux Remote forced restart/proc/sys/kernel/sysrq/proc/sysrq-trigger

1. # echo 1 >/proc/sys/kernel/sysrq2. # echo B >/proc/sysrq-trigger1./proc/sys/kernel/sysrq1 is written to the SysRq file in order to turn on the SysRq feature. According to Linux/documentations/sysrq.txt, SYSRQ represents the Magic System Request Key. When this feature is turned on, it will respond to any action you require as long as the kernel is not dead. How

Compile the Proc program in Linux, and compile the Proc program in Linux.

Compile the Proc program in Linux, and compile the Proc program in Linux. A simple Proc program needs to be written in linux. There is very little information, and a brief summary will be made after completion.References. 1. download the following installation package from the oracle websiteSelect 64-bit or 32-bit based on the OS version. Sqlplus is used for con

Error code: 1728 Cannot load from mysql. proc. The table is probably uploaded upted, 1728mysql. proc

Error code: 1728 Cannot load from mysql. proc. The table is probably uploaded upted, 1728mysql. procError code: 1728 Cannot load from mysql. proc. The table is probably uploaded uptedHttp://bugs.mysql.com/bug.php? Id = 50183The reason is that mysql. proc causes 5.1 comment char (64)-> 5.5 comment textThe difference seen in the mysql.

11gR2 RAC exclusive mode replace votedisk encounters PROC-26, restore ocr encounters CRS-4000, PROT-35, proc-26crs-4000

11gR2 RAC exclusive mode replace votedisk encounters PROC-26, restore ocr encounters CRS-4000, PROT-35, proc-26crs-4000 Link: http://blog.itpub.net/23135684/viewspace-748816/ The storage data of the 11gR2 RAC system is completely lost. The software of all nodes is installed on the local disk, and the local disk retains the OCR backup, the following describes how to restore the normal operation of Clusterwar

Proc series-/proc/Pid/statm

/Proc/ /Statm Contains all CPU activity information. All values in this file are accumulated from the start of the system to the current time. [Root @ localhost ~] # Cat/proc/self/statm654 57 44 0 0 334 0 Output descriptionCPU and CPU 0... The meaning of each parameter in each row (in the first behavior example) is:Parameter explanation/proc/ /Status Si

View port usage through/proc/ioports (/proc/iomem)

$ CAT/proc/ioports-0cf7: PCI bus :002017-001f: dma10020-0021: pic10040-0043: timer00050-0053: timer10060-0060: keyboard0064-0064: keyboard0070-0071: rtc00080-008f: DMA page Reg00a0-00a1: pic200c0-00df: dma200f0-00ff: FPU0170-0177:. 00170-0177: pata_amd01f0-01f7:. 001f0-01f7: pata_amd0376-0376:. 00376-0376: pata_amd03c0-03df: VGA +03f6-03f6:. 003f6-03f6: pata_amd03f8-03ff: Serial04d0-04d1: PNP0800-080f: pnp0a00-0a0f: pnp 00: 0b0a10-0a1f: pnp 00: 0b0cf8

Proc series-/proc/loadavg

All values in this file are accumulated from the system startup to the current time. This file only provides information about all CPU sets, and cannot output information about each CPU. [Root @ localhost ~] # Cat/proc/loadavg4.61 4.36 4.15 9/84 5662 The meaning of each value is:Parameter descriptionLavg_1 (4.61) 1-minute average loadLavg_5 (4.36) 5-minute average loadLavg_15 (4.15) 15-minute average loadNr_running (9) indicates the number of task

Linux Kernel proc file system usage example, Linux kernel proc example

Linux Kernel proc file system usage example, Linux kernel proc example /* * Kernel programming test code** Copyright (C) 2014 Sun Mingbao * Dual licensed under the MIT and/or GPL licenses.**/# Include # Include # Include # Include # Include # Include MODULE_AUTHOR ("Sun Mingbao MODULE_DESCRIPTION ("kernel programming test code ");MODULE_VERSION ("1.0 ");MODULE_LICENSE ("Dual MIT/GPL ");# Define MODULE_NAME

Linux Device Driver Learning notes--proc (supplemental seq_file) of kernel debugging methods __linux

The proc implementation in the previous section is relatively straightforward for switch files, control files, and files that display very little information, but it is awkward to output large amounts of information like meminfo, or structured information like Cpuinfo, and the code is poorly understood and maintained. The kernel provides another solution to simplify the implementation of this proc file----S

Description of the file parameters in the/proc/sys directory

First, the preface This document aims at the OOP8 production environment, the specific optimization strategy needs to adjust according to the actual situation; This document describes how to optimize performance for Redhat Enterprise Linux in the following ways. 1 Linux proc File system, through the proc file system adjustment, to achieve performance optimization. 2 The Linux Performance Diagnostics tool, w

Linux Kernel (proc file system) parameters

http://blog.csdn.net/guowake/article/details/3279796 Linux proc File system, through the proc file system to adjust to achieve the purpose of performance optimization. Second,/proc/sys/kernel/optimization1)/proc/sys/kernel/ctrl-alt-delThe file has a binary value that controls how the system reacts when it

[Go] In-depth understanding of the/proc directory

The/proc directory on a Linux system is a file system, the proc file system. Unlike other common file systems,/proc is a pseudo-file system (also known as a virtual file system) that stores a series of special files that are currently running on the kernel, which users can use to view information about system hardware and the processes currently running. You can

Introduction to the/proc directory under Linux

1./proc DirectoryThe Linux kernel provides a mechanism for accessing kernel internal data structures and changing kernel settings at run time through the/proc file system. The proc file system is a pseudo-file system that only exists in memory and does not occupy external memory space. It provides an interface for accessing system kernel data in a file system man

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