用-newer选项啊。
你可以先touch一个你想要的时间的文件如下：
$ touch -t 08190800 test
$ ls -l test
-rw-r–r– 1 dba other 0 Aug 19 08:00 test
然后
$ find . -newer test -print
.
./.sh_history
$ ls -l .sh_history
-rw——- 1 dba other 154 Aug 20 17:39 .sh_history
班主,我不能 access /usr/include/sys/inode.h .
摘书如下:
Directories contain directory entries. Each entry contains a file or subdirectory name and an index node reference number (i-node number). To increase speed and enhance use of disk space, the data in a file is stored at various locations in the computer’s memory. The i-node contains the addresses used to locate all the scattered blocks of data associated with a file. The i-node also records other information about the file including time of modification and access, access modes, number of links, file owner, and file type.
可我发现 -atime 改了, -ctime 还没改. why ?
( 我先 cat 一个 ASCII 文件,再用 -atime -1 有它用 -ctime -1 居然没有它.)
着岂不跟 inode 信息改变, ctime 就改矛盾吗?
typedef struct inode
{
struct inode *i_forw; /* inode hash chain */
struct inode *i_back; /* ‘’ */
struct inode *av_forw; /* freelist chain */
struct inode *av_back; /* ‘’ */
int *i_fsptr; /* "typeless" pointer to fs dependent */
ino32_t i_number; /* i number, 1-to-1 with dev address */
ushort i_ftype; /* file type = IFDIR, IFREG, etc. */
short i_fstyp; /* File system type */
off_t i_size; /* size of file */
ushort i_uid; /* owner */
ushort i_gid; /* group of owner */
ushort i_flag;
ushort i_want; /* i_flag extension to avoid MP races */
ushort i_count; /* reference count */
short i_nlink; /* directory entries */
dev_t i_rdev; /* Raw device number */
#define i_namtype i_rdev /* i_ftype==IFNAM subtype */
dev_t i_dev; /* device where inode resides */
struct mount *i_mton;/* ptr to mount table entry that */
/* this directory is mounted on */
struct region *i_rp; /* ptr to shared region if any */
struct stdata *i_sp; /* ptr to associated stream */
struct iisem *isem; /* ptr to XENIX semaphores */
struct iisd *isd; /* ptr to XENIX shared data */
} i_un;
#define i_mnton i_un.i_mton /* i_ftype==IFDIR IMOUNT */
#define i_rptr i_un.i_rp /* i_ftype==IFREG || i_ftype==IFBLK */
#define i_sptr i_un.i_sp /* i_ftype==IFCHR || i_ftype==IFIFO */
#define i_sem i_un.isem /* i_ftype==IFNAM && i_namtype==IFSEM */
#define i_sd i_un.isd /* i_ftype==IFNAM && i_namtype==IFSHD */
struct fstypsw *i_fstypp; /* ptr to file system switch FSPTR */
long *i_filocks; /* pointer to filock (structure) list */
unsigned long i_mappages; /* number of pages currently cached */
unsigned long i_vcode; /* read-ahead block save (NFS) */
short i_wcnt; /* write open count or ITEXT count */
struct lockb i_cilock; /* tas to synchronize i_flag changes */
ushort i_rdlocks; /* count of non-exclusive lockers */
} inode_t;
没有什么工具显示,(可能是俺不知道)
把下面程序里的st_mtime换成st_ctime,或st_atime便可以得到你要的了.
#include
int
main (int argc, char **argv)
{
struct stat buf;
char date[80];
char fname[80];
printf("Enter filename (with full path) to check mtime : ");
scanf("%s",fname);
stat(fname, &buf);
printf ("mtime (in sec) of %s = %ld\n", fname, buf.st_mtime);
strcpy(date, ctime((time_t *)&(buf.st_mtime)));
printf ("mtime (in date) of %s = %s\n", fname, date);
}
至于文件备份,有什么不可以的么?
mtime ls -l 最近修改文件内容的时间
atime ls -lu 最近访问文件的时间
ctime ls -li 最近文件有所改变的状态 ,如文件修改,属性\属主 改变 ,节点 ,链接变化等 ,应该是不拘泥只是时间前后的改变
俺看了ls的帮助,以为只是按ctime或atime排序,显示的时间还是mtime.
仔细比较了一下,ayhan说的是对的.谢谢ayhan.
多谢 ahyan 提示 ! 我在 Solaris 上试过如下:
mtime 用 ls -l 看到
atime 用 ls -lu 看到
ctime 用 ls -lc 看到. (ls -li 只有 inode number)
摘书如下:
-c Uses time of last modification of the i-node (file
created, mode changed, and so forth) for sorting (-t)
or printing (-l or -n).
-u Uses time of last access instead of last modification
for sorting (with the -t option) or printing (with the
-l option).
-i For each file, prints the i-node number in the first
column of the report.