CentOS 7 解压 7zip 压缩的文件
在CentOS上我们解压得比较多的文件类型一般是tar.gz，zip等结尾的，比较少见.7z结尾的，那么这种文件应该用什么命令来解压呢？
尝试使用tar命令
[root@machine-1 ~]# tar xf OneAPM.7ztar: This does not look like a tar archivetar: Skipping to next headertar: Exiting with failure status due to previous errors
很明显这是不行的，每种压缩有自己的算法，以7z压缩的，用tar命令自然就解不出来，我们需要下载对应的7z解压工具。
[root@machine-1 ~]# yum -y install p7zip
使用7za命令进行解压
[root@machine-1 ~]# 7za x OneAPM.7z7-Zip (a) [64] 16.02 : Copyright (c) 1999- Igor Pavlov : -05-21p7zip Version 16.02 (locale=en_US.UTF-8,Utf16=on,HugeFiles=on,64 bits,2 CPUs Intel(R) Core(TM) i5-7300HQ CPU @ 2.50GHz (906E9),ASM,AES-NI)Scanning the drive for archives:1 file, 18963 bytes (19 KiB)Extracting archive: OneAPM.7z--Path = OneAPM.7zType = 7zPhysical Size = 18963Headers Size = 188Method = LZMA2:24kSolid = -Blocks = 1Everything is OkFolders: 1Files: 1Size: 19028Compressed: 18963
这样就解压成功了，7za还有很多命令参数，有需要可以研究下：
[root@machine-1 ~]# 7za -h7-Zip (a) [64] 16.02 : Copyright (c) 1999- Igor Pavlov : -05-21p7zip Version 16.02 (locale=en_US.UTF-8,Utf16=on,HugeFiles=on,64 bits,2 CPUs Intel(R) Core(TM) i5-7300HQ CPU @ 2.50GHz (906E9),ASM,AES-NI)Usage: 7za <command> [<switches>...] <archive_name> [<file_names>...][<@listfiles...>]<Commands>a : Add files to archiveb : Benchmarkd : Delete files from archivee : Extract files from archive (without using directory names)h : Calculate hash values for filesi : Show information about supported formatsl : List contents of archivern : Rename files in archivet : Test integrity of archiveu : Update files to archivex : eXtract files with full paths<Switches>-- : Stop switches parsing-ai[r[-|0]]{@listfile|!wildcard} : Include archives-ax[r[-|0]]{@listfile|!wildcard} : eXclude archives-ao{a|s|t|u} : set Overwrite mode-an : disable archive_name field-bb[0-3] : set output log level-bd : disable progress indicator-bs{o|e|p}{0|1|2} : set output stream for output/error/progress line-bt : show execution time statistics-i[r[-|0]]{@listfile|!wildcard} : Include filenames-m{Parameters} : set compression Method-mmt[N] : set number of CPU threads-o{Directory} : set Output directory-p{Password} : set Password-r[-|0] : Recurse subdirectories-sa{a|e|s} : set Archive name mode-scc{UTF-8|WIN|DOS} : set charset for for console input/output-scs{UTF-8|UTF-16LE|UTF-16BE|WIN|DOS|{id}} : set charset for list files-scrc[CRC32|CRC64|SHA1|SHA256|*] : set hash function for x, e, h commands-sdel : delete files after compression-seml[.] : send archive by email-sfx[{name}] : Create SFX archive-si[{name}] : read data from stdin-slp : set Large Pages mode-slt : show technical information for l (List) command-snh : store hard links as links-snl : store symbolic links as links-sni : store NT security information-sns[-] : store NTFS alternate streams-so : write data to stdout-spd : disable wildcard matching for file names-spe : eliminate duplication of root folder for extract command-spf : use fully qualified file paths-ssc[-] : set sensitive case mode-ssw : compress shared files-stl : set archive timestamp from the most recently modified file-stm{HexMask} : set CPU thread affinity mask (hexadecimal number)-stx{Type} : exclude archive type-t{Type} : Set type of archive-u[-][p#][q#][r#][x#][y#][z#][!newArchiveName] : Update options-v{Size}[b|k|m|g] : Create volumes-w[{path}] : assign Work directory. Empty path means a temporary directory-x[r[-|0]]{@listfile|!wildcard} : eXclude filenames-y : assume Yes on all queries
