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.7z
tar: This does not look like a tar archive
tar: Skipping to next header
tar: 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.7z
7-Zip (a) [64] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21
p7zip 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.7z
Type = 7z
Physical Size = 18963
Headers Size = 188
Method = LZMA2:24k
Solid = -
Blocks = 1
Everything is Ok
Folders: 1
Files: 1
Size: 19028
Compressed: 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 -h
7-Zip (a) [64] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21
p7zip 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 archive
b : Benchmark
d : Delete files from archive
e : Extract files from archive (without using directory names)
h : Calculate hash values for files
i : Show information about supported formats
l : List contents of archive
rn : Rename files in archive
t : Test integrity of archive
u : Update files to archive
x : 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