gzfile r

In view of the non-persistent and capacity constraints of the memory, an effective data processing tool must be able to use external data: be able to obtain a large amount of data from the outside, and be able to save the processing results. R

To use this library, you will need to install zlib first, and you can get to http://www.zlib.net/the library. ) Zclose: Closes the compressed file. Gzeof: Determines whether the end of the file is compressed. Gzfile: Reads the compressed file

PHP decompression file functions to use this function library requires the first installation of zlib, to the http://www.zlib.net/to obtain the function library. ) Zclose: close the compressed file. Gzeof: determines whether the file is at the

Concept: Sequencefile is a text storage file consisting of a binary serialized Key/value byte stream, which can be used during the input/output format of the map/reduce process. During the map/reduce process, the temporary output of map processing

Query file type and file Location command)FileRole: View the file type (the file type under Linux does not differentiate after the prefix name)Syntax: file [options] filename============================================================================

Query file type and file Location command)FileRole: View the file type (the file type under Linux does not differentiate after the prefix name)Syntax: file [options] filename============================================================================

The tar command, "This is just packing, not compression," is the compression. Unpacking: Tar zxvf FileName. TarPackage: Tar czvf FileName. TarDirnamegz Command Decompression1: Gunzip FileName. GZExtract2: gzip-d FileName. GZCompression: gzip

Below is a PHP database backup source code, you can also according to their own needs to modify. Backing up a database$host = "localhost";$user = "root"; Database account$password = ""; Database Password$dbname = "MySQL"; Database nameThe account

Issue background:I need to generate a type of double matrix of about 1.5T, the hard disk can not stand, io time is not consumed, so try to compress before the output. Matrix generation using Java, calculations on matrices using CPPThen try to use

File ObjectFile manipulation in Python is similar to the C language, including some ways of buffering and offsetting.The file object can be created by using the open (), file () two built-in methods, and the two methods are not different, similar to