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files in the All.tar package,-X is the meaningThese are the most basic uses of tar. In order to facilitate the user in the package unpacking can be compressed or decompressedFile, Tar provides a special feature. This is the tar that can be packaged or unpacked while calling other pressurePrograms such as Gzip, bzip2, and so on. 　　 1) Tar call gzipGzip is a compression program developed by the GNU organization, and the. Gz end file is the result of gzip compression. With gzipThe relative decompr

All.tarThis command is to list all the files in the All.tar package,-T is to list the meaning of the file# TAR-XF All.tarThis command is to solve all the files in the All.tar package,-T is to untie the meaningThese are the most basic uses of tar. Tar provides a special feature to facilitate the user's ability to compress or decompress a file while unpacking the package. This is what tar can call other compression programs while packaging or unpacking, such as calling Gzip, bzip2, and so on.1) T

*.jpgThis command is to make all. jpg files into a tar package and compress them in gzip to generate a gzip compressed package named all.tar.gz# TAR-XZF All.tar.gzThis command unlocks the package generated above.2) Tar call bzip2Bzip2 is a more compressible compression program, and the. bz2 end of the file is the result of bzip2 compression. The decompression procedure relative to bzip2 is bunzip2. Use the-j parameter in tar to invoke gzip. Here's an

variable does not have a count value and does not occupy the memory space, thread A must start waiting before B sends the signal. If B sends a signal before a wait operation, the signal is lost, and A is blocked until another thread sends the signal to the condition variable again. The condition variable will allow you to do this by ordering the thread to continue running in one case, while the other is ordering the thread to block. As long as each thread that may involve changing the state cor

-TF All.tarThis command is to list all the files in the All.tar package,-T is to list the meaning of the file# TAR-XF All.tarThis command is to solve all the files in the All.tar package,-X is the meaningThese are the most basic uses of tar. Tar provides a special feature to facilitate the user's ability to compress or decompress a file while unpacking the package. This is what tar can call other compression programs while packaging or unpacking, such as calling Gzip, bzip2, and so on.1) Tar cal

developed by the GNU organization, and the. Gz end file is the result of gzip compression. The decompression procedure relative to Gzip is gunzip. Use the-Z parameter in tar to invoke gzip. Here's an example:# TAR-CZF all.tar.gz *.jpgThis command is to make all. jpg files into a tar package and compress them in gzip to generate a gzip compressed package named all.tar.gz# TAR-XZF All.tar.gzThis command unlocks the package generated above.2) Tar call b

files in the All.tar package,-X is the meaningThese are the most basic uses of tar. In order to facilitate the user in the package unpacking can be compressed or decompressedFile, Tar provides a special feature. This is the tar that can be packaged or unpacked while calling other pressurePrograms such as Gzip, bzip2, and so on. 　　 1) Tar call gzipGzip is a compression program developed by the GNU organization, and the. Gz end file is the result of gzip compression. With gzipThe relative decompr

Zip:Compression:Zip [-acddffghjjkllmoqrstuvvwxyz$][-b Extract:Unzip [options] Compress file name. zipOptions:-X file list to unzip the file, but not include the specified file file.-V View the compressed Files directory, but do not press.The-t test file has no damage, but does not understand the pressure.The-D directory unlocks the compressed file to the specified directory.-Z displays only annotations for compressed files.-N does not overwrite files

package,-T is to list the meaning of the file# TAR-XF All.tarThis command is to solve all the files in the All.tar package,-X is the meaningThese are the most basic uses of tar. In order to facilitate the user in the package unpacking can be compressed or decompressedFile, Tar provides a special feature. This is the tar that can be packaged or unpacked while calling other pressurePrograms such as Gzip, bzip2, and so on. 　　 1) Tar call gzipGzip is a compression program developed by the GNU organ

All.tarThis command is to list all the files in the All.tar package,-T is to list the meaning of the file# TAR-XF All.tarThis command is to solve all the files in the All.tar package,-X is the meaning of unpackingThese are the most basic uses of tar. Tar provides a special feature to facilitate the user's ability to compress or decompress a file while unpacking the package. This is what tar can call other compression programs while packaging or unpacking, such as calling Gzip, bzip2, and so on.

to list all the files in the All.tar package,-T is to list the meaning of the file# TAR-XF All.tarThis command is to solve all the files in the All.tar package,-X is the meaning of unpackingThese are the most basic uses of tar. Tar provides a special feature to facilitate the user's ability to compress or decompress a file while unpacking the package. This is what tar can call other compression programs while packaging or unpacking, such as calling Gzip, bzip2, and so on.1) Tar call gzipGzip is

command is to solve all the files in the All.tar package,-X is the meaningThese are the most basic uses of tar. Tar provides a special feature to facilitate the user's ability to compress or decompress a file while unpacking the package. This is what tar can call other compression programs while packaging or unpacking, such as calling Gzip, bzip2, and so on. 　　 1) Tar call gzipGzip is a compression program developed by the GNU organization, and the. Gz end file is the result of gzip compression

QT provides support for threading in three different forms. They are, one, platform-independent thread class, two, thread-safe event delivery, three, cross-thread signal-slot connection. This makes it easier to develop a lightweight multithreaded Qt program and take advantage of multiprocessor machines. Multithreaded programming is also a useful pattern that is used to resolve long-run operations without the user interface losing response. In earlier versions of Qt , there was no option to selec

even number. But the accident came. The following is the source code: Sometimes you don't have to worry about whether someone is using that resource. But for multithreaded environments, you have to have a way to prevent two of threads from accessing the same resource at the same time, at least not at the critical time. To prevent this kind of conflict is very simple, as long as the thread is running when the resources to lock the line. The first thread to access the resource locks it, and bef

executed concurrently as much as possible, and the threads must be stopped or waited at some key points. For example, if two threads attempt to access the same global variable at the same time, the result may not be as expected.QMutex provides mutually exclusive locks or mutex volumes. At most one thread has mutex at a time. If a thread tries to access a locked mutex, it will sleep until the thread that owns mutex unlocks the mutex. Mutexes is often