read gz

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

Original: Linux unzip multiple. gz or. tar.gz files at once Unzip multiple compressed packagesFor extracting multiple .gz files, use this command:for gz in *.gz; do gunzip $gz; doneFor extracting multiple .tar.gz files, use the following

Package Main.java;Import java.io.*;Import java.util.LinkedList;Import java.util.List;Import java.util.zip.*;Import org.apache.commons.compress.archivers.ArchiveException;Import Org.apache.commons.compress.archivers.ArchiveInputStream;Import

1.spark Read the compressed file of HDFs GZ spark1.5 later versions support direct reading of files in GZ format, no difference from reading other plain text files.Start the spark shell interface and read the GZ file in the same way as a plain text

Here, there is a/GZ option in the compilation options of VC. You can use it to initialize some variables.If you do not use it, this process is ignored.For details, see the following. In short, to use a compiler, it is necessary to see the help of

Previously wrote a log file (TXT file) to extract a specific log, written to the MySQL database script, because the log is too large, maintenance staff to pack the log compressed into the tar.gz format. TXT file before a single file of more than 2G,

how to unzip a. gz zip file #gzip-D xxx.gz Tar command [Root@linux ~]# tar [-cxtzjvfppn] files and directories .... Parameters: -C: Create a compressed file parameter directive (the meaning of Create); -X: Unlocks a parameter directive for a

Package test; import Java. io. file; import Java. io. fileinputstream; import Java. io. filenotfoundexception; import Java. io. fileoutputstream; import Java. io. ioexception; import java.util.zip. gzipoutputstream; import

1.//creating gzip compressed file input stream2. Create a gzip decompression workflowNew FileInputStream (FilePath + fileName); // Defrost able New Gzipinputstream (FileInputStream); New File (FilePath);

The RPM command management package on the CentOS systemOne, RPM package management is divided into installation, upgrade, uninstall, query and calibration, database maintenanceInstallation of RPM packagesThe option parameters added after the rpm