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# date && echo "this is file be used test time of file" >filetime.txt && ll --full-time filetime.txt
Tue Aug  4 15:13:44 HKT 2009
-rw-r--r--    1 root     root           39 2009-08-04 15:13:44.000000000 +0800 filetime.txt
 
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# stat filetime.txt
  File: `filetime.txt'
  Size: 39              Blocks: 8          IO Block: 4096   Regular File
Device: 802h/2050d      Inode: 17          Links: 1   
Access: (0644/-rw-r--r--)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2009-08-04 15:13:44.000000000 +0800
Modify: 2009-08-04 15:13:44.000000000 +0800
Change: 2009-08-04 15:13:44.000000000 +0800
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ctime=change time
atime=access time
mtime=modifiy time
 
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total used free shared buffers cached
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