does not report file information.W each step requires confirmation.Use gzip to compress/unzip the file, plus this option to compress the archive file, but be sure to unzip it using this option when restoring.-F: Use the file name, remember that this parameter is the last parameter, can only be followed by the file name.-C: Build compressed archives tar-cf file.tar *.jpg This command is to make all. jpg files into a package called File.tar. -C: Indicates that a new package is generated,-F: Speci
: Unzip the/tmp/etc.tar.gz file under/USR/LOCAL/SRC
[Root@linux ~]# CD/USR/LOCAL/SRC
[Root@linux src]# tar-zxvf/tmp/etc.tar.gz
# in the preset case, we can release the compressed file anywhere! In this example,
# I first transform the working directory underneath the/USR/LOCAL/SRC and unlock the/tmp/etc.tar.gz,
# then untie the catalog will be in/USR/LOCAL/SRC/ETC! In addition, if you enter the/USR/LOCAL/SRC/ETC
# you will find that the file attribute
the header file without manually adding Lib library files#ifdef _DEBUG#pragma comment (lib, "Aced.lib")#else#pragma comment (lib, "Ace.lib")#endif8. There may be an error when you release Windows, with the following errors:Error C2039: ' tryentercriticalsection ': is not a member of ' GlobalError C2065: ' tryentercriticalsection ': undeclared identifierWorkaround:Project Project-->setting-->c/c++ write: _win32_winnt=0x0500The construction of Aces under Linux1. Set the environment variable ace_r
virtueAs the saying goes: "Step back to the sky, let a bit of calm." "This means that there is a need for tolerance between people. Tolerance is a virtue, it can make a person to be respected. Tolerance is a medicine, it can save a person's soul. Tolerance is like a lamp, can radiate in the dark light, illuminate each heart.Seven, learn to untie the heartThe human mind is fragile and needs to be constantly stimulated and comforted. Often self-motivat
file above?[Email protected] ~]# tar-ztvf/tmp/etc.tar.gz# because we use gzip compression, so to check the file in the tar file,# you have to add Z to this parameter! It's important!Tar Example three: Extract the/tmp/etc.tar.gz file under/USR/LOCAL/SRC[Email protected] ~]# CD/USR/LOCAL/SRC[Email protected] src]# tar-zxvf/tmp/etc.tar.gz# in the case of presets, we can unzip the file anywhere! In the case of this example,# I'm going to transform my working directory under/USR/LOCAL/SRC and
, and-U is the meaning of the update file.
# TAR-TF All.tar
This command lists all the files in the All.tar package----------T is the list of files
# TAR-XF All.tar
This command is to solve all the files in the All.tar package, and-X is the most basic use of tar. In order to facilitate the packaging and unpacking of the user can compress or extract files, tar provides a special function. This is where tar can invoke other compression programs while packing or unpack, such as calling Gzip, bz
file at the end of GZ is the result of gzip compression. With gzip
The relative decompression program is gunzip. Use the-Z parameter in tar to invoke gzip. Here are some examples to illustrate
:
# TAR-CZF all.tar.gz *.jpg
The command is to make all. jpg files into a tar package, and use gzip compression to generate a
Gzip compressed packets, package named all.tar.gz
# TAR-XZF All.tar.gz
This command is to untie the packets generated above.
2) T
the end of GZ is the result of gzip compression. The decompression program relative to Gzip is gunzip. Use the-Z parameter in tar to invoke gzip. Here are a few examples to illustrate:
# TAR-CZF all.tar.gz *.jpg
This command is to make all. jpg files into a tar package and use gzip compression to generate a gzip-compressed package named all.tar.gz
# TAR-XZF All.tar.gz
This command is to untie the packets generated above.
2) Tar call bzip2
BZI
all the files in the All.tar package----------T is the list of files# TAR-XF All.tarThis command is to solve all the files in the All.tar package------X is the meaning of the undoThe above is the most basic use of tar. In order to facilitate the packaging and unpacking of the user can compress or extract files, tar provides a special function. This is where tar can invoke other compression programs while packing or unpack, such as calling Gzip, bzip2, and so on. 1) Tar call gzipGzip is a com
examples to illustrate
:
# TAR-CZF all.tar.gz *.jpg
This command is to make all. jpg files into a tar package and use gzip compression to generate a gzip-compressed package named all.tar.gz
# TAR-XZF All.tar.gz
This command is to untie the packets generated above.
2) Tar call bzip2
BZIP2 is a more compressed program,. bz2 end of the file is the result of bzip2 compression. The bzip2 relative to the decompression program is BUNZIP2. Use-j this paramet
equals the constraint. The 2nd step is fixed and, at this time the derivative of the constraint equalsSo the maximization constraint equals the log probability of the maximized data set (where the probability of H0 occurs). If the constraints are stricter, even if the nether grows, it can be reduced, but not less than the 2nd step of the greedy algorithm, because the constraints are very restrictive and the values of the constraints are always rising.We can iterate over the greedy algorithm, so
.
# TAR-TF All.tar
This command lists all the files in the All.tar package----------T is the list of files
# TAR-XF All.tar
This command is to solve all the files in the All.tar package----------T is untied
The above is the most basic use of tar. In order to facilitate the packaging and unpacking of the user can compress or extract files, tar provides a special function. This is where tar can invoke other compression programs while packing or unpack, such as calling Gzip, bzip2, and so on.
] ~]# TAR-CVF/TMP/ETC.TAR/ETC [[email protected] ~]# tar-zcvf/tmp/etc.tar.gz/etc [[email protected] ~]# tar-jcvf/tmp/etc.tar.bz2/etc #特别注意, the file name after the parameter F is taken by itself, we used to use. Tar as an identification.#如果加z参数, the. tar.gz or. tgz represent the gzip compressed tar file~#如果加j参数, use. tar.bz2 as the file name.#上述指令在执行的时候, a warning message is displayed:# "tar:removing leading '/' from member names" That's a special setting for absolute paths.Example two: Check ou
package All.tar, and-U is the meaning of the update file.
# TAR-TF All.tar
This command lists all the files in the All.tar package----------T is the list of files
# TAR-XF All.tar
This command is to solve all the files in the All.tar package------X is the meaning of the undo
The above is the most basic use of tar. In order to facilitate the packaging and unpack the user can compress or
DecompressionFile, Tar provides a special feature. This is where tar can invoke other compression programs
#未完待续The only way to unlock a single fileIf I just want to untie the package file,One of the files in it, how do you do it? Vigilance simple, you just use-JTV to find the file name you want, and then the file nameYou can undo it. We use the following example 杢 to illustrate:# 1. First find our file name, fake ou untie shadow file OK: [[Email protected]~]# tar-jtv-f/root/etc.tar.bz2 | Grep'Shadow'-R--------R
/etc.tar.gz# because we use gzip compression, so to check the file in the tar file,# you have to add Z to this parameter! It's important!Tar Example three: Extract the/tmp/etc.tar.gz file under/USR/LOCAL/SRC[Email protected] ~]# CD/USR/LOCAL/SRC[Email protected] src]# tar-zxvf/tmp/etc.tar.gz# in the case of presets, we can unzip the file anywhere! In the case of this example,# I'm going to transform my working directory under/USR/LOCAL/SRC and untie/t
meaning of the update file.
# TAR-TF All.tarThis command lists all the files in the All.tar package----------T is the list of files
# TAR-XF All.tarThis command is to solve all the files in the All.tar package----------T is untied
The above is the most basic use of tar. In order to facilitate the packaging and unpacking of the user can compress or extract files, tar provides a special function. This is where tar can invoke other compression programs while packing or unpack, such as calling Gzip
the files in the tar file# We're going to have to add the Z parameter! It's very important!Tar example three: Unzip the/tmp/etc.tar.gz file under/USR/LOCAL/SRC[Root@linux ~]# CD/USR/LOCAL/SRC[Root@linux src]# tar-zxvf/tmp/etc.tar.gz# in the preset case, we can release the compressed file anywhere! In this example,# I first transform the working directory underneath the/USR/LOCAL/SRC and unlock the/tmp/etc.tar.gz,# then untie the catalog will be in/US
authenticator to attack this system.Athena: No. You must have both a validator and a ticket. There is no ticket, the authenticator is useless. Unlock the authenticator must have a password, the service must untie the ticket to have the password.Euripides: OK, I get it, you mean when the client program contacts the service, it sends the ticket and authenticator at the same time?Athena: Yes, that's what I mean.Euripides: If so, what can stop me from st
sender's identity. This process is called a digital signature. Of course, the specific process is slightly more complicated. Use the private key to encrypt the data, which is the digital signature.OK, let's review:1, a pair of public key keys appear2, private key only I know3, you can use my public key to send me an encrypted letter.4, everyone use my public key to decrypt the contents of the letter, to see if it can be untied, to untie, the explanat
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